North American Flora Volume 17

VO LUM E 1 7 PART 7

NO RTH AMERICAN FLO RA

(P OALE S)

PO ACEAE (pars) 1 ALB ERT SPEAR Hn‘ cncocx

sc i i n P ice Sub r pt o r ,

e ar a e C ies S p t op ,

PUBLI SHE D BY

. THE N E W YORK BOTAN I CAL GAR DEN

H 3 1 1 93 M ARC , 7

(btRLHﬂ!

A RT 7 1 93 7 AC A P , ] PO E E

Coll a r glabrou s (throa t of she a th more or ss s a u su a s le pilo e) ; p nicle lly ex erted , 7 n e . n s 3 S . do m s i . a s . n rrow , conden ed i g a s s a t as a t s s Coll r den ely pilo e . le t the ide ; p anicle u su a lly inclu ded a t bas e

(sometimes entirely inclu ded) . — u s bu s 1 2 s a s C lm ro t , meter t ll ; pike — nl en 8 . a . 3 . S i s let s 3 mm . long . g g u s s s s s a C lm more lender , mo tly le th n s 2 1 meter ta ll ; s pikelet mm .

long . a a P nicle open , often l rge , the bra nches a nd bra nchlet s ﬂe xu o us s s s ar , the pikelet loo ely

9 . exuo us . 3 . S s ra nged . ﬂ a a P nicle open or comp ct , if open , the spikelets crowded on the t branchle s . a a s P nicle comp ct or pikelike , ntra ctus 40 . S . co . u sua lly exserted . a s P nicle , or the ex erted portion , a somewh t open , the bra nches n a ked below (s o m e t i m e s e n t i r e l y

inclos ed) .

t nd us . 4 1 . S . c a B as e of pl a nt a clos e tu ft . ryp r B as e of pla nt a clus ter of knotty rhizomes ; cu lms s s ss erect , lender , mo tly le a b a s th a n 30 cm . t ll ; l de s u s a hort , invol te , pre d

ll . 2 . N ea e i 4 . S ing . y

2 42 1 8 3 0 . l ili k . 1 : . 1 . H a n s c atus P esl R el . e Sporobo u r ,

2 l l a t M em A a - 40 as S o obolus c l ata s a . Péte rsb . 6 63 . 1 8 . Vi a c . . St . : f i i Trin c d VI . (B ed on p r i i

Pres l . ) 2 1 obol us c l ia ta s s a l P e lii . . 7 1 or Vi a r s S u . . 2 . : 68 . 84 . as S f te d Nom Bot ed (B ed on p i Pre l , the n me a a a l l prob bly ch nged bec us e of Vi fa c i i ata B e a uv .

A ua a — u s o r u a and s a a nn l , foli ge yellow green when dry ; c lm erect genic l te pre din g , br nching

- - s ab us a u a s 1 0 3 0 . a s a s from the lowe r node , gl ro , gl nd l r p i tted below the node , cm t ll ; he th

and a a as o f a a us s a crowded overl pping tow rd the b e the pl nt , gl bro except the den ely cili te

a o r ss a u a — o n s u s a a s a m rgin , more le gl nd l r pitted the nerve , the ppermo t elong te with hort bl de ;

u ss a ﬁa a ff a a s a . a a s t s lig le le th n mm lon g , cili te ; bl de , r ther ti , cili te with long r ther di t nt — a s a a s bas s o n su a s s a a s s 5 1 0 . h ir from p pillo e e , pilo e both rf ce with c tterin g long h ir , mo tl y cm

iﬂ - i o r ss as u as 5 . a s t a st s long , m ch mm wide ; p nicle erec , r ther , bronze brown , pikel ke , more le — u 1 - b a s s 5 0 . a s a us s a a u a interr pted , mo tly cm long , the xi gl bro , omewh t gl nd l r pitted , the r nche nd s a a u s a ss a u a s ts a u 2 . a a s pedicel ppre ed , gl nd l r ; pikele bo t mm long , r ther bro d , gl bro ; ﬁr t

u s a a i s as s as as s . gl me le th n h lf long , the econd lon g the p kelet

: a a a TYPE LOCALITY P n m . a a H a a a : S as a nd u u as . DISTRIBUTION v nn Open gro nd , ond r to P n m

- 2 . l i iﬁ 1 s va n orus To n o o l ass ed . 8 6 1 Sporobo u g ( r ) W d , C book ,

7 7 5 . 1 1 86 .

Vi l a a ni cr a T - o r . A r . a A a t b . . . 3 1 34 . M em . A a . t. P e rs m . . . 8 S é f ﬂ ; Gr y , N Gr m Cyp . ; Trin c d VI 6g§2 i84O

C r tosta ch s va na t a . n 1 1 1 a S u S . a . 85 4 . A . yp y gi te d y Gr m 8 . (Type from North meric ) S or o bolus m nor as A a M a n a . S . . 6 . 646 . 1 890 a p i V ey ; Gr y , . ed . . (Type from North C rolin ) Not m no u 1 830 i r K nth , . S or o bol us li ul m is . c L . . a t. H 2 1 1 94 . m nor as . S . N b . : 5 9 . 8 . as S p ﬁ Dewey , Contr U er (B ed on i V ey )

S . li cu lm i s as 1 885 . Not fi V ey . S orobolus ovatus a Am . 2 00 1 ass s . 9 n . : 3 . 8 6 . as S . m or as p Be l , Gr e N (B ed on i V ey ) S orobol us va ina tu n t u . s S b . a 2 1 1 5 1 t h a a S . z . 896 . as r tos a c s va p g cri n Bot G : . (B ed on C yp y gi te d ) S orobo lus va ini m n qrus va r . h a 8 9 7 . o m . . 3 . 5 98 1 p g fl i r Scribn ; C p . Fl . S . U . 8 . ed . (Type from a a a nd North C rolin Tenness ee . ) S orobol us va ini or u s var i na e ua li s F e m ald a 3 5 1 09 1 9 3 . : . 3 . p g fl q , Rhodor (Type from Concord , H a New mpshire . )

A ua a a s u s s a - tto s a i a us s nn l , br nching from the b e ; c l m ever l noded , erec pre d n g , gl bro , mo tl y 2 — 0 40 . a s s a u b u or ss s a t a s as 7 5 . s a s a s cm t ll , ometime m ch cm ; he th gl ro , more le pilo e the thro t ; 484 NORTH AM ERI CA N FL ORA [VOL UME 1 7

a s su v u o r ﬂat a t as a u ss a . a t as a u l i g le le th n mm long , cili te ; bl de bin ol te often le t b e , gl bro s b a s a u s o n u su a a nd a s s a a a a ene th , c bro the pper rf ce m r gin e peci ll y tow rd the tip , often cili te ne r

as s s s a s - s o n u su a a as O n b e , ometime p r el y long pilo e the pper rf ce ne r the b e , the lower fte elon

a u s a s u as 2 . a s a a nd a a s s t g te , the pper hort , m ch mm wide ; p nicle termin l xill ry , lender , mo l y

s o r a u a a a 3 . a s u not more th n cm lon g , the termin l ex erted p rtly incl ded , the xill ry mo tl y incl ded

s a s a s as s a s s a nd a s a u s s s i n the he th , l te in the e on the he th wollen cont ining clei tog mo pikelet ;

' — u s a u ab us a u ua 3 5 . a as a s u s o r gl me c te , gl ro , bo t eq l , mm long ; lemm lon g th e gl me exceeding

a u a u a a s a s u s s s a s s a a them , c te or c min te , r ther p r el y p be cent , ometime mottled with d rk pot ; p le

a u a s s a a . c min te , ometime longer th n the lemm

TYPE L OC A L ITY : New Jersey . D I STR TB U TI O N : Sa s as u a i and a i i s a a nd b as a ndy oil or open w te gro nd , M ne Ont r o to M nne ot Ne r k , a nd s u a a as a nd Ar i a . o thw rd to Georgi , Tex , zon 1 A o st. 7 : . 66 H a 2 A r . r 4 . . . 8 0 I L L USTR A TIONS : B ul l . U . S . Dep . g g f ; itchc M n j

l l 2 2 4 4 sh l . T e l ec s a : . 1 8 . n N 3 l s e 6 95 . Sporobo u g tu , B u orr y C ub

A . A o 1 b lu v r u le tu b . u . . . . r r st. 7 . l 7 0 1 o n ne s . 0 o 4 66 . 9 1 . Spor s agi iﬂo s g c Scri n B ll U S Dep g g (ed f.

ne lectus as . (B ased on S . g N h ) 3 1 9 3 . bb ss u a lm S oro bo l us o zarkanus a a 3 5 : 1 09 . er p Fern ld , Rhodor (Type from We City , Mi o ri , P

v i ni or s s a a u A ua ff S . a l u s s nn l ; di ering from g f chieﬂy in the m ller , p ler , p l mp er p ikelet

. a nd a us a a s s a s s a s usua mm lon g , in the gl bro lemm ; bl de often p r ely pilo e ; p nicle ll y entirel y hidden i n the more swollen sheath s ; p a l e a usually a bout as lon g as the lemm a .

' L A L : Wo o d ru ﬂ G a s B r tton TYPE OC ITY p , New Jer ey ( i in : u a nd s a s u b and a a a a nd DISTRIBUTION Dry Open gro nd ndy ﬁeld , Q e ec M ine to North D kot , n s u a ar a ss a d a s as A a . o thw rd to M yl nd , Tenne ee , Tex ; W hin gton , rizon n A : . a . 8 22 . I LL USTR TION H itchc M f. k n a i a a u a s ss u a s : S . oza r a u s s NOTE Fern ld form from the Oz rk Mo nt in , Mi o ri , with r ther trongly i s p lo e leaves .

2 4 . l s i im h . s n 3 : 3 69 . tenu s s u c an n z e R ev . Ge Sporobo u (S r k) Ku t ,

1 8 98 .

t P a n cum enui ss m um n . S a D nks . . s . R e e sb . 2 : 2 6 1 822 i e G e . i chr nk , Bot g A rosti cul a m ur l s a d A ro 23 a st . as . 33 . 1 8 . a . g i R d i , g Br (Type from Br zil ) 1 rost cula S oro bolus m u a l s H . A N at H b . 8 : 368 . 1 9 1 7 as i . 81 as . . S . . p r i itchc Ch e , Contr U er (B ed on g

m ura l is R a ddi , )

A ua u s a 2 5— a us s ss us 7 5 . a s a s nn l ; c lm lender , erect , compre ed , gl bro , cm t ll ; he th gl bro ,

ss - u s a a es ﬂat - a u a a us o r compre ed keeled ; lig le ver y hort , cili te ; bl d , thin , lon g c min te , gl bro — 1 — a so 5 5 . u s a s u u 1 3 . a s a u ne rl y , cm lon g , the ppermo t bl de not m ch red ced , mm wide ; p nicle bo t

— b a s a nd b a of u a O 3 6 . a ts h lf the len gth the entire c lm , n rrow , pen , cm wide , the r nche r nchle n a u s a a s a s s a us a u 1 . o s a us gl bro , c pill ry , pre ding ; pikelet gl bro , bo t mm lon g , lender gl bro b a o f s s u a u o ne u s a u s . pedicel ; ﬁr t gl me bo t fo rth , the econ d o t h lf the length the pikelet

TYPE L OC A L ITY : Bra zil .

: as u s a s u L ss A s a . DISTRIBUTION W te gro nd , Virgin I l nd thro gh the e er ntille to Br zil A l 1 L L A O : a ro st . as . . . 2 . I USTR TI N R ddi , g Br p , f

l A m 2 l s m a r s erm us i n. ea asses . . 5 . c o c N Sporobo u p S r b ; B , Gr

2 . 3 0 . 1 8 96

— A u a u s a a nd u a a t as a us 1 5 3 0 cm . a s a s nn l ; c lm erect , br nchin g genic l te b e , gl bro , t ll ; he th

a bas a us u s a a u a u crowded tow rd the e , gl bro , th e ppermo t elon g te with red ced bl de ; lig le very s a b a s ﬂa t s u a s a w a a s a us hort , cili te ; l de or loo el y invol te , cili te with c ttering long e k h ir , gl bro — 1 3 . a s s s a s s su a s ss a 5 . bene th or ometime p r el y pilo e on the upper rf ce , mo tl y le th n cm long , mm — a s a a s a a a s b s s 3 8 . g wide ; p nicle n rrowl y pyr mid l , Open , mo tl y rowni h , mo tl y cm long , the xi l b — a a us a a a s s s a ﬂexuou s a us 1 2 . g , g ro , the c pill ry br nche i n verticil , pre ding , , gl bro , cm lon be rin

s s u a s a s s s ab u 2 . g , few pikelet on the pper h lf , the e longer th n the pedicel ; pikelet o t mm lon

ab us s lu a a s s a s as s . gl ro , the ﬁr t g me one third to h lf long , the econd lo ng the pikelet

L A L : u a a a a a r n le TYPE OC ITY G d l j r . Mexico (P i g : s u s u c a nd ua a a . D ISTRIBUTION Rocky or terile Open gro nd , o thern Mexi o G tem l e e a s S u . . . . A : S r . A ro s t 4 1 897 . : 1 5 . NOTE l o B ll U Dep g g . A RT 7 1 93 7 A C A 4 5 P , ] PO E E 8

l e ll . o e l 6 . s ann s as T 1 4 : 1 9 . 8 Sporobo u uu V y , B u rr y C ub 8 7 .

A u a u s o r s a s a a a t ba s a u 1 — s 0 1 5 . a nn l ; c lm erect omewh t pre ding , br nched e , gl bro , cm t ll ;

b ﬂa t o r b - ab us ab u 2 . a s a 1 3 s a s u us . he th g l ro , keeled ; lig le o t mm long ; l de folded , gl ro , cm lon g ,

1 . a s O o r a u a mm wide , the midrib thickened ; p nicle blon g ovoid , open , bo t h l f the entire heigh t

o f u a s a us b a s a s s a u us a s a us s c lm , the xi gl bro , the r nche cending , c ber lo , th e xil gl bro , the pedicel

a a w s u s ua a us ab u s a - c pill ry , thickened belo the pikelet ; gl me eq l , gl bro , r ptly h rp pointed ,

a - b a a s u s a ss u s . mm . lon g ; lemm l ittle horter th n the gl me , ppre ed p e cent

L A L : N o ra a c h i u a u a a lm er 4 a TYPE OC ITY g , Chih h (P in DISTRIBUTION : Sa nd y s oil nea r wa ter ; known only from the type loc a lity

l m i r s rm i 7 . s c o e us a h . a sh . c a Sporobo u p (L g ) H t c c Jour . W A d .

2 : 4 1 3 . 3 5 3 . 93

m m a l u m cros e m u . . 8: . 2 . 1 8 1 . M i i i p r L g Gen Sp Nov . 6 ut t s m n ss m a u . n . a . 1 7 1 l r S S 85 . F end e A os 1 . 4 g i i i i te d y Gr m (Type from New Mexico , r ° l on us a u . . . a 1 0 1 a c . . 1 886 H all 59 H arbo u 643 Vi f f Fo rn Mex Pl Gr m . (Type from Mexico ; r from a s a b F o ni the United St te lso cited y ur e r . )

b lu on u sa s as u . 1 1 l a n us . o o 888 . as V co a u S r o s c ub 5 : 293 . i p f V ey , B ll Torrey Cl (B ed on f f Fo rn ) berrans s 4 s b lu n usa s va . a 1 1 : 1 0 . 1 9 2 . S oro o s co r . . . S p f Jone , Contr W Bot ( pecimen cited from A a a nd u a Bowie , rizon , J rez , Mexico i 4 t m nu l m nuti ss m H . oc . as . 1 1 6 1 . 1 928 as A ros s u : . Sporobo us i i s itchc . Proc . B ol S W h (B ed on g i i m a u tissi Ste d . )

A u a u s o r s a a s u u us o r s a u us nn l ; c lm erect pre ding , br nched below , lender , p ber lo c ber lo ,

- — b a ﬂat l ax 2 . s 1 0 30 . a s a s s a s a u us u 1 cm t ll ; he th tri te , c ber lo ; lig le thin , p ointed , mm long ; l de , , — two s a u u s s ss a 1 0 . 1 2 . a s a o r c ber lo , mo tl y le th n cm long , mm wide ; p nicle oblong , Open , h lf s as as u a s a us s a u us a a s third long the entire c lm , the xi gl bro below , c ber lo bove , the br nche

S a s a u s a us a s s s s a pre ding , c bro , gl bro i n the xil , the pedicel lender , pre ding , thickened below the \ l um b u o u s a s s s s s 1 . es o tuse a ua a t pikelet ; pikelet mm long ; g , bo t eq l , h lf three fo rth long a s s o r a s o r O s u s as us u s o n the pikelet little more , di tinctly b c rely pilo e ; lemm obt e , p be cent mid

nerve and m argins .

A : a ss TYPE L OC L ITY Mexico (grown in Sp in from seed s ent by Se e) . O : Sa u a a and as as b as a DISTRIBUTI N ndy or rocky open gro nd , Mont n e tern W hington to Ne r k , as a nd s u a a s a a Tex , New Mexico , o thern C liforni ; Co t Ric . H i c h c an 8 1 M . . I L L USTR A TION : t . f 4

m . l ul sus n h v m . 1 : 68 8 . é s ra o R . a Sporobo u Ku t , Gr

1 82 9 .

E l a am ulos H . Vi r a . K . . . l : 1 1 1 3 7 . 8 5 . f Nov Gen 81 Sp . rost s r am ulo s V e . 2 : 3 6 1 . 1 los A a . . s 1 m . as i l a ra u a g i R S Sy t g 8 7 . (B ed on V f a m n m 4 a s Vi l a as . A r . 1 8 7 4 1 5 5 1 8 7 . L . S . . : . f i i V ey , Monthly Rep U Dep g (Type from Twin ke , a W l n m o V . m a 1 85 4 . Color do , f Not i i Trin . S orobolu s WO l i a s a 5 2 . 1 883 . as u . ub 1 0 : L p ﬁ V ey , B ll Torrey Cl (Type from Twin ke , Color do , Wolf l 0 7 7 S orol l ra cem osu s u 1 4 1 7 i u a u a P a lm e as ub : 9 . 88 . p V ey , B ll . Torrey Cl (Type from Ch h h , r in 1 ggg;

M u hlenber i a W l robolus Wol i as . u . u 3 2 : 600 . 1 905 . as o g o ﬁ i Rydb . B ll Torrey Cl b (B ed on Sp ﬁ V ey )

— A u a u s a a at s a us a 1 0 20 . a nn l ; c lm Spre ding , br nching the lower node , gl bro , ngled , cm t ll ;

s a s a us s a a s u u a s l ss a . he th gl bro , tri te , Shorter th n the internode ; l ig le tr nc te , ero e , e th n mm — a s ﬂ at l ax a u s a s a u s - u s on u su a s 1 3 long ; bl de , , gl bro bene th , c bro p be cent the pper rf ce , mo tly

1 — a s . . o r s a a s a us s s 2 5 c m . cm long , mm wide le ; p nicle Oblo ng , ope n , lon g , th e xi gl bro , the br nche a s s a s a us s s stiﬁ s a us a ss a a cendin g , omewh t c bro , the pedicel hor t , , c bro , ppre ed lon g the m in

a s s s a u 1 m m u s a b us a u u a a us a as br nche ; pikelet bo t . lon g ; gl me bro d , o t e , bo t eq l , gl bro , h lf a s s a a u a u s . long the pikelet ; lemm r ther t rgid , c ti h

L A L : u . TYPE OC ITY Jor llo , Mexico

: u a A a and s u a ua a a . DISTRIBUTION Open dry gro nd , Color do , New Mexico , rizon , o thw rd to G tem l

A H . M a n 1 L L : 8 3 . I USTR TION itchc . f. 486 NORTH AM ERI C A N FL ORA [VO L UME 1 7

2 . Ze its . 5 : 5 6 9 l s bah am ensis ac . O esterr . . . Sporobo u H k B ot

1 902 .

1 — a s a s a us u s a A ua u s s 5 3 0 . nn l ; c lm lender , erect , cm t ll ; he th gl bro ; l ig le very hort , cili te — b us a b b u 1 . a b a s s u s 4 6 . a g , , l de loo ely i nvol te , mo tly cm lon g , o t mm th ick , gl ro ; p nicle O lon Open — or ab u t a o f u 3 4 . a s a a a s o h lf the length the entire c lm , cm wide , the br nche c pill r y , cending s a s s a a us a a s s a a 1 . pre din g , mo tly olit ry , gl bro , n ked on the lower p rt ; pikelet l ittle more th n mm

s a us s - a a s s a s long , omewh t cl tered , hort pediceled , the l ter l p edicel horter th n the pikelet , u s a b u s u s s a s a ua . s a gl ro ; gl me horter th n the pikelet , ne rly eq l , mm long , the ﬁr t c ti h ,

s b a b us a and a a ua us u a s a a . the econd ro der , o t e ; lemm p le eq l , obt e ; fr it l ittle horter th n the lemm

L A L : A s a a a a s . TYPE OC ITY cklin I l nd , B h m : Am s u bs a E er s 390 5 and DISTRIBUTION ong hr ; known only from the type loc lity ( gg , the type , Br ace 42 5 1 )

1 8 8 7 i l 1 4 : 8 . 1 . r T 0 l s Sh e h e d ase ll . o e Sporobo u p V y , B u rr y C ub

A ua u s s a a a t a s a nd s s a u us nn l ; c lm erect or pre ding , br nching the b e lower node , c ber lo below — — 2 0 40 a a a u s 2 3 . s . s a s us o r a s a u us s the node , cm t ll ; he th gl bro f intl y c ber lo , tri te ; lig le ero e , mm

a s ﬂat s u a us a u s u su a s long ; bl de or loo ely invol te , gl bro bene th , p be cent on the pper rf ce , mo tl y — — a s 5 . 5 1 0 . ss a 1 2 . a s O o r O le th n cm long , mm wide ; p nicle blo ng ovoid , pen , cm long , the xi s ab ul us a b a s a s ffl as a u s a s s ab us a s c er o , the delic te r nche r ther ti y cending , gl bro i n the xil , c ro ,

u as 7 c m . s a s o f s o r a a a us o r m ch long, the pedicel (br nche the econd third order) c pill ry , gl bro

a so o r ss ﬂexuous s a a su a s ne rly , more le e peci lly ne r the mmit , enl rged below th e pikel et (the

a u s 2 r a s u s as a s s enl rgement ro ghi h) spikelets about mm . long o l ittle les ; gl me lon g the pikelet o r a s a us a us s a s a s a and little horter , gl bro , r ther obt e , the ﬁr t little horter th n the econd ; lemm

a a a b u ua a ss - u s at p le o t eq l , ppre ed p be cent except the tip .

TYPE L OCA L ITY : Sou thwes tern Chihu ahu a (P a l m er 9 in : s u a ua a nd u a DISTRIBUTION Rocky pine wood , Chih h D r n go .

1 l il i 1 . s a l s n n 1 4 : 2 c e es o . e . 9 1 s Bot. . 1 9 . Sporobo u p p Jo , C tr W t

S orobol us ca ll e v deli ca l u lus s a r . 1 4 s . s 19 1 2 . . . : 1 0 . S p p i ip Jone , Contr We t Bot (Type from oldier a a S a u a u a . C nyon , ierr M dre , Chih h )

A ua f Sh he i a S . rd s s e s a u . s nn l ; di fering from p in the m ller pikelet , bo t mm long , the horter

u s a to s as a s a and a us a a gl me , one h lf two third long the lemm , the gl bro or ne rl y gl brous lemm a .

L A L : San a S a a u a u a TYPE OC ITY Diego C nyon , ierr M dre , Chih h . ” : L a L Z a s DISTRIBUTION ower temper te ife one ; known only from the two type loc litie cited . : s m a be a S She he . rdi a s su a NOTE Thi y only form of p gge sted by Jones . The p nicles are de ” s b as a cri ed often foot long .

1 2 . l s i inic s . n h R év . m 1 a . l : 67 . 2 9 Sporobo u v rg u (L ) Ku t , Gr 8 .

A ros t s v r n c P 1 a . 63 S . . L . 1 7 5 3 g i i gi i p . Vil a v r n ca B a A e u v . ro s t 1 6 1 82 1 . . 8 1 2 . as A ros v f i gi i g , (B ed on g ii s i rgini ca L . ) A ros t s u n en s u . D es c r . a . 1 8 1 7 2 . 7 g . as a p g s . A i M hl Gr m (Type from e tern United St te ) Not . un n e s S b . 1 7 p g chre 69 . C r s is v r n ca u . 1 : 49 . 1 y p . 8 1 8 . a s A rost s v r n ca i gi i N tt Gen (B ed on g i i gi i Willd . P o dos a em um v r n cu m H . L . 1 85 . 1 82 7 : . a s A r t i gi i ink , ort Berol (B ed on g os i s vi rgi ni ca L . )

a u us a s s Perenni l , with n mero , br nching , widel y creepin g , lender rhizome (yellowish in u s 1 0—40 g) ; . a s a s a o r ss s at a dryin c lm erect , cm t ll ; he th overl pping , more le pilo e the thro t ; b a s ﬂat b u s a a s u us s us l de or ecomin g invol te e peci ll y tow rd the ﬁne point , con pic o l y di ticho , s ss a 5 . a s a a a o r mo tly le th n cm lon g or on the innov tion lon ger ; p nicle p le , contr cted spikelike , 2— — 8 . 5 1 0 . s 2 g , s . u n a cm lon mm thick ; pikelet mm lon g ; gl mes a d lemm a a bou t equ l .

L A L : a TYPE OC ITY Virgini . : Sa u s as s a nd s a a s s s s DISTRIBUTION ndy or m ddy e hore line m r he , forming exten ive colonie , with r a i ﬂ u s s u as a n a s a nd g , . . . a a d el t vely few owerin c lm o the tern Virgini (Gron Fl Virg ) to Florid Tex , u s a ug s s a a s u a a o thw rd thro h the We t Indie to Br zil ; l o Ec dor to Chile ; w rmer parts of the Old World . L L A : u . . A S . . A r . l ro t . 7 : s 4 7 0 H . a n . M 8 1 6 . I USTR TIONS B ll U Dep g g f ; itchc . f.

S o obo u s i u a p c s v r . to a a s m . H g L . A rost s l tt l s am . Tab . l r l vir in lit r li ( ) itchc g i i ora i L Encyc . 1 6 1 . 1 7 9 1 . ( ass S o ro bo lus v r n cu v l tt s a r . l s or a i . A ro t s ba r b ta s . n . . 1 : 7 5 B of p i gi i i ) g s i a Per Sy Pl . 1 80 5 . ( a s A ost s li llo r alis L am . Vi l a l tto l a 4 1 1 g ra s B e u v. A ro s t 1 6 1 7 1 8 . 1 8 2 . B ed on r i ) f i i g . , , A RT 7 1 93 7 P , ] POA C EA E 48 7

A o t l tt l as s s ora s L a m . S oro bo l us l tto r a l s u C R é v . 1 g ra m . : 6 8 1 8 ( ) . 29 B ed on r i i i p i i K nth , . (B ased ti s l ttora l s A os a m . a n g L ) S S . v cu s b u t a u s a s u as l a on r i i imil r to irgi i l rger , the c lm m ch m . t ll a nd a s m u 1 as as 5 . . L A L : S u t A the p nicle ch cm long TYPE OC ITY o h merica . DISTRIBUTION : Sou thern i a B raZ I l s I nd i Flor d to ; common in the We t e s .

1 3 . l s P ir i i . h o et R . i c c . a o n a 1 4 : 3 2 1 Sporobo u ( S ) H it B rt . 93 2 .

t s m r e r s m . o co ss a . a 1 2 5 8 A . Su . L E : . 1 1 0 8 . g p ( A . co m r essa i Poir in ncyc ppl no Not p Willd . 1 7 90 1 l 2 5 9 . 1 8 0 . . O . . : , nor Poir p cit

A xono us P o ir el i i . S . S s . V e . 2 : 3 1 8 . 1 8 1 7 . as A rosl i s co m ress a p R y t g (B ed on g p Poir . n . 7 8 t a nd the b a s i s of Spor o bo l us P oi re i i . )

A l is l enu i ss im a S . S s . l : 25 8 . 1 825 . ( s b s s a nd S u A pren g y t De cri ed from We t Indie o th merica . ) 2 M m A a - b V ex li s . e . . t. Péte r . . 6 : 89 1 40 i s . S 8 . a a a Trin c d VI (Type from J l p , Mexico . ) 2 A a - P t 6 l o n m . b M e . St. é ers . . 00 . 0 V B er er a a . 1 4 : 1 8 . Sa Trin c d VI (Type from nto Domingo . ) orobol n ustus u ] A a a 1 62 S us a . . . . 8 : 8 8 1 863 p g B ck Proc c d Phil . . (Type from Texas . ) l m a va Vi a tena ci ss r . exi li s u . . . a . 9 9 . 1 8 86 . as Vi l a exil s f i Fo rn Mex Pl Gr m (B ed on f i Trin . ) V l n s m va nt m d i a te a c s a r . er e a u . a . 9 1 88 . . 9 . 6 . i f i i i i Fo rn Mex Pl Gr m (Type from Mex co . ) b st V l l en ss i m a va r . ro u i a aci a u . . . a . 1 00 1 886 . f Fo rn Mex Pl Gr m . (Type from Mexico . ) o obol s B erl eroa nu H u 8: as . . a . H S s . N 1 8 3 0 . S t b . 7 : . 1 9 1 7 as l p r itchc Ch e , Contr U er . (B ed on Vi fa e B rteroa na Trin . )

a u s s a o r s a u s ab us 230—1 00 . a s a s a Perenni l ; c lm erect , olit ry in m ll t ft , gl ro , cm t ll ; he th gl b us ss u s o n a a nd a u a s a ul ro , more or le p be cent the m rgin ro nd the thro t , omewh t keeled ; lig e a ﬂat a t a s ua ss . a a s us ss u ab ﬁrm , le th n mm long , ciliol te ; bl de b e , ll y more or le invol te ove ,

a a a us o r a so s a us a — 2 5 . t perin g to long ﬁne point , gl bro ne rl y except the c bro point ; elong te , mm at bas a usua s bu t o r ss u 1 0— 4 0 . wide e ; p nicle lly pikelike , more le interr pted , cm long , the s a s o r as s n a s s s ss a 1 . br nche ppre ed cending , clo ely ﬂowered , the middle o e mo tl y le th n cm lon g ; b a s s a u 2 . u s us s u ua a u a f as as pikelet bo t mm long ; gl me o t e , omewh t neq l , bo t h l long the

s pikelet or less ; lemma acu tish .

TYPE L OCA L ITY : C arolina (Bosc) . : u and as a s a s s and A a sas ba as DISTRIBUTION Open g ro nd w te pl ce , Virgini to Tenne ee rk n ; on ll t in

Oregon and New Jersey ; a lso tropic al A s i a ; a pp arently introdu ced in Ame rica . 2 a A ro s t . 7 z . 1 6 . nd cus H . M n. . 8 1 8 . A r . S I L L USTR A TIONS : B u ll . U . S . Dep . g g f ( i i ) ; itchc f NOTE : A t m a tu rity the extruded reddis h c a ryopses rem ain for s ome time sticking to the p a ni cle i a a a ﬂ s s a t b a b a u u s . by the mu cil ginous peric rp . The in ore cence often t cked y l ck f n g l n a a Thi s species h as been inclu ded in Sporo bo us i d i cus in m ny m n ua ls .

R . . P o r . 1 8 1 0 . s in i . 7 l c s r d . 1 0 1 4 . Sporobo u d u (L ) Br

P 1 . 63 . 1 7 5 3 . A grostis i nd i ca L . Sp . t 1 2 . 1 7 9 1 . u A a A ros s nd ca . Tab . . l : 6 S L A grostis elo nga ta L a m . E ncyc (Type from o th meric ; g i i i t 1 8 1 0 . S orobolus elo n a us . . cited as s ynonym . ) Not p g R Br

A r st elo n ata am . 1 8 1 2 . as o s L a v A 1 6 1 47 1 8 1 . Vi l a elon a ta B e u . ro s t. f g g , , (B ed on g i g )

A ros t s elo n a ta am . 1 825 . as L a P ro d r . 4 . r s H . Sporo bolus L a m a ckii De v . ; milt (B ed on g i g )

2 7 1 3 1 Sa . 4 8 . S o obolus Ja c uem ont u R év . a . . p r q ii K nth , Gr m (Type from nto Domingo ) - 1 94 as Vi l a f . . ns . . A r . 5 : 82 1 8 l tt l v a n l a D ur . C o robol us o a s r . elo a s S Spo i r i g chinz , p Fl (B ed on f

elongal a B e au v . )

P oi relii a s s s a at as a a s Resembling S. ; bl de more lender , e peci lly b e ; p nicle br nche lon ger ,

and ss s s as to s a s a a i more slender , le den el y ﬂowered , loo el y cending omewh t pre ding , the p n cle

u no t n arrow b t spikelike .

a b a u s is a bu t s i TYPE L OCA L ITY J ama ic a . The loc lity given y Linn e Indi the type pec men

was sent from J ama i ca by Pa trick Browne . u a a a ba as bi A ab a a a s i a A i a and DISTRIBUTION : P nt Gord , Florid ; ll t , Mo le , l m ; l o trop c l mer c

sou theas tern A s i a .

M a n 1 8 . 2 H i . . . 8 8 l . 1 7 R A : u R év . a . I LL UST TIONS K nth , Gr m p ; tchc f

1 1 ° A ost. A r . r ll . . . D e . l s P alm e i c i n. U 1 5 . Sporobo u r S r b B u S p g g

4 1 8 98 . 8 .

- a us a au u s u s s s s l ab bas , g , Perenni l , gl co ; c lm den ely ce pito e , erect , noded ove the e l bro — a a s a u s s a s at a u s , 3 0 5 0 cm . t ll ; she th gl bro , tri te , crowded below , pilo e the thro t ; l ig le ver y hort

— b a u a s f s a - ab us a 1 m m . s , g , den sel y cili ate with h ir s long ; l de invol te , r ther ti f , h rp pointed l ro — — — a s a d ifl use 20 30 . g 5 1 2 . a , 1 2 . , cm long , mm wide when fl ttened ; p nicle Open , r ther cm lon the ta ab us r a so b a s a s f a s a s s , g axis gl abrous o ne rly , the r nche r ther ti f , fin ll y pre ding , mo tl y oli ry l ro s b a s o f a u u ) a s s a s u as 1 5 . in the xil , mooth , m ch cm long , the pedicel ( r nche bo t the fo rth order u us a a a flexuous a s ts s s 3 . g , , c p ill ry , somewh t , longer th n the pikele ; pikelet mm lon pl mbeo 488 NORTH AM ERI CAN FLORA [VOL UME 1 7

u 2 . a us a a s u b us . s g g ; ; p gl abrous ; ﬁr t gl me o t e , mm lon g ; econd l me mm lon lemm obt e le a a a s C s a s s u 2 . . broad a little longer th n the lemm , the keel lo e together ; c r yop i bo t mm long ,

u a alm er 1 80 TYPE L OCA L ITY : City of D r ngo , Mexico (P in i DISTRIBUTION : A lk ali b ottom s ; known only from the type collect on .

l . 5 . A ro s t. A r . S . . I L L USTR A TIONS : B ull . U . Dep g g p

2 : 303 . m . . . T i c h c . e l s m acrus in. 1 6 . Sporobo u ( r ) H t A r Jour B ot

1 9 1 5 .

- 2 1 40 . 6 : 7 9 . 8 i N a t. te r b . . Sc . t. Pé s A a . M em . S Vill a m acra Trin . c d VI

— a s s a a s s a s 2 3 . g s ; Perenni l , with hort c ly creeping rhizome cm lon , the c le clo el y imbric te — a a s a us s a u ab us s a s 5 0 7 0 . ; s g , p culms erect , gl ro , one or two in m ll colonie , cm t ll he th l bro ilo e bo t a s a as u s a a the thro at and the upper surfa ce of the bl de ne r b e ; lig le very hort , mere tr ce , the u b a s fla t o r o r ss u a us at b ase of the bla de folded in aro nd it ; l de more le invol te , gl bro excep t — — — s at as 5 1 5 cm . 3 . a s a s bas 1 0 20 . 1 ; , , g , e , cm lon g , mm wide p nicle n rrow mo tl y inclo ed b e lon — a u s s s s 4 5 . ss a us u s the bra nches erect ; pikelet mm long , compre ed , gl bro ; gl me c ti h , the fir t as s s a a s a and a a about two third s as long the pikelet , the econd little longer th n the fir t , lemm p le

- a a a th e s a s a . subequ al o r the p le little longer , tip bo t h ped

TYPE L OCA L ITY : L ou i s i ana .

: i a a a i ssi ssi i a nd L ui si a a . DISTRIBUTION Wet p ne l nd , Okl hom , M pp , o n n 82 6 M a . . . I L L USTR A TION : H itchc . f

H ookerz. NOTE : Except for the rhizomes thi s s peci e s resembles Sporobolus as per var .

‘ 2 l 1 9 . i x n h . R ev . m . : 68 8 1 o l s as e M ch . a . 7 . Spor bo u p r ( ) Ku t Gr

A m . 1 5 2 . 1 803 PI . : A grosti s as pera Michx . . Bor .

4 1 0 a a . o l am . . u . 1 25 . 1 8 . A grostis c m po s i a Poir . in L E ncyc S pp l : (Type from C rolin )

. 4 1 a s st ra . 1 6 1 7 1 8 1 . 1 2 . A ro s a s e l r B a u A ro s t. 8 Vi a as e a e v . f p g , , (B ed on g i p Michx )

t o 1 47 1 1 A r t s om os ta . A r st. 1 6 8 1 . 1 8 2 . as os c Vi l a co m osi a Be au v . f p g , , (B ed on g i p i Poir ) nd 1 a a P a . a D e sc r . a . 7 2 . 8 1 7 . s b us u A ost s i nvol uta u . S gr i M hl Gr m (De cri ed from q eh nn , , New

Jersey . ) F l l 90 s S . : . 1 823 A ost s lo n ol a . . . . S s gr i gif i Torr U ( pecimen cited from New York , New Jer ey , n a a as sa u s s a d s . M ch ett , Penn ylv ni ) f l u u . PI . 1 : 2 1 0 . 33 a t s s er . A uhlenber i a as er a . 1 8 . s A ros i a a g p Trin ; K nth , En m (B ed on g p Michx )

M u h n e a m os t u u . P 1 . 1 2 29 . 1 83 . A r s t s o m os ta le b co a . 3 as o i c rgi i Trin ; K nth , En m (B ed on g p i Poir 2 t -P t 4 A rosti s l a lo n ol a em a . b 0 M . A . é ers . . 6 : 1 0 7 . 1 8 . as Vi f gif i orr . ; Trin . c d S VI (B ed on g

lo ngifo l i a Torr . )

- l as s b . 1 86 1 o l 7 . 7 5 . 1 86 1 . as A rost s lon i a S or obo us lo n ol us . i p gif i Wood , Cl ook ed (B ed on g gif Torr ) A r S or b l m o t . A . . 5 : 6 1 90 A rost s om o o us co si us S . . . ro s t. 3 1 . as c p p Merr Circ U Dep g g . (B ed on g i

pos ita Poir . )

a u s a s u s a o r s a u s s a - a us Perenni l ; c lm erect , r ther to t , olit ry in m ll t ft , ever l noded , gl bro , 60— 1 20 . a s a s a us s a o r ss u s o r s a u cm t ll ; he th gl bro , trongly overl ppin g , more le p be cent pilo e ro nd

a and a u s s a a u a s a ﬂat the thro t on the coll r ; lig le ver y hort , c rcel y me s r ble ; bl ade elong te , , b v u a and l a t as a to a s a us ecoming in ol te , the lower n rrow rol ed b e , t pering ﬁne c bro point , more — ss s a as u su a s s s a a a s 1 4 o r a or le pilo e ne r b e on the pper rf ce , ometime pilo e bene th ne r b e , r rely

5 . a s a s s s u s a a nd a a a mm wide ; p nicle p le or whiti h , ometime p rpli h , termin l xill r y , contr cted ,

ss s usua s at as s a more or le pikelike , lly inclo ed b e or ometimes entirel y inclo sed i n the inﬂ ted u s a — — s 5 1 5 . a s a ss s s 4 6 . ss pper he th , cm long , the br nche ppre ed ; pikelet mm lon g , compre ed , g ab us ; u s a u s a a th e s ab u a a s as s s l ro gl me c ti h , r ther bro d , ﬁr t o t h lf long the pikelet , the econd

s u s as a a nd a a u - s u a s a s a . two third to three fo rth long ; lemm p le beq l , the tip bo t h ped

L A L T : s M ch a u x TYPE OC I Y Illinoi ( i ) . B : F r a m e s a nd s a a s a a a nd s u a DISTRI UTION ndy me dow , Vermont to North D kot , o thw rd to s s , a as a a nd as as Tenne ee Color do , Tex , Ut h , New Mexico ; e tern W hington .

L L A : u . . A r A S . . . ro s t. 1 1 9 H a . 82 . I USTR TIONS B ll U Dep g g ; itchc . M n j. 4

S o obo us a i p s va r . o su s as H . . o . 4 1 1 6 1 1928 . S . r l p er p l (V ey) itchc Proc Biol . S c Wa sh . : . i l os u s V s . G a z . 1 6 p , : 2 6 . 1 89 1 . a s a nd s a s A L : aey Bot Bl de he th more or le ss pilos e . TYPE L OC ITY a K nsas : a s a nd s a s a s (Sa u and s a DISTRIBUTION Pr irie rocky hill , K n line Co nty we tw rd) ; as Tex (Del Rio) . S o obo us as e va r H o p . o . a s D Vi l a p es c r . C a t. a 1 885 . 43 . r l r keri (Trin ) V ey , Gr sses U . S . f [Jr um m o dzi i M - 2 . ém . A a t . r . S Pé te b . s . 6 0 l : 1 6 1 as . Vi a r n c VI . 840 . ( ) f ' n‘ T d Type from Tex II ooke F 2 ri i . M m A é . a P . St. te rsb 6 é . . 1 : 06 . 1 84 t 0 . Gl cer a stri c a r n c d VI (Type from Texas . ) y i u ] . . A a . i a 1 8 62 . : 95 . 1 8 63 . as a a c roc c h l ( ype from ex . Inﬂores cence bnorm l , the B k P d . P T T s i s d i s as W i 2 3 - s a m as . S oro l a a s bo us D um m on a s t. s s kelet e ed th or ever l nerved lem ) p r d ii V ey , C Gr e p ’ L . 4 S . 4 . 1885 . as Vi l a D r u m m ond ( . S orobolus a s er va D m m ond a s B ed on j ii Trin ) p p r . ru ii V ey , A RT 7 1 93 7 A A 489 P , ] PO CE E

V l D m m n 8 2 as i a ru o d . 3 1 9 . H b . 60 . b N a t. : S oro o l S . u s a l Contr . U . er (B ed on f ii Trin ) p l enua l us 903 a 1 . 1 3 . ss K as S a . SE . . S . 2 ( S , ” earne L s s b us N h , in m ll , Fl U Type from t rkville Mi y e ro t , ﬂ a s s s u su a s a 3 5 s . a the more lender fewer owered p nicle loo er ; pikelet lly m ller , mm long ; foli ge r arely

a us O A : as . : a s ss u s s . L L s ss a omewh t villo TYPE C ITY Tex DISTRIBUTION Pr irie , Mi o ri , Mi i ipp i , l ex s a a and Okl hom .

i l lande st nus en . i ch c . n 1 8 s c . U . . N . Sporobo u (Spr g ) H t Co tr S at 1 2 1 0 e . 1 9 8 . H rb : 5 0 .

H al . 32 . 1 0 7 a . . 8 . A grosti s cla ndestina Sp ren g . M nt Fl

i 1 824 . a s a Un tl 1 90 . M uhlenber a clandest na . . . A rost s clandest na gi i Trin Gr m (B ed on g i i Sp ren g .

2 . 2 67 . 1 4 1 . . . : 7 8 . Vi lfa cla ndestina Nees ; Steud . Nom Bot ed (B as ed on A grosti s cla ndestina

Spreng .

1 5 4 . 1 . n. a . 54 8 A a Vi lfa Ri ehli i Steu d . Sy Gr m (Type from North meric . ) M an 1 042 1 90 1 bolus canovirens as . . . St. a a S oro s s . p N h ; Britton , (Type from George , K n )

a u s a s u s s a usua s Perenni l ; c lm rel tively to t to lender , erect or pre din g , lly ce pitose in ra ther

- — a u s a us s a 5 0 1 00 . a s a s a us o r s l rge b nche , gl bro , ever l noded , cm t ll ; he th gl bro the lower pilo e ,

o r ss s at a s s a more le pilo e the thro t , except the lower mo tl y horter th n the inter nodes ; ligule very s a s flat u a to a s a us s o n hort ; bl de becoming invol te , t perin g lon g fine c bro point , pilo e the upper — su a a as s s a s a 1 3 . a s a a r rf ce ne r b e , ometime l o bene th , mm wide ; p nicle n rrow , contr cted o spike — nd a 5 1 0 . a a a a O s a a u ua n like , cm long , termin l xill ry , the termin l ften ex erted , the xill r y s lly i — 7 s in s a a s a s s s 5 . ss u clo ed the omewh t infl ted he th ; pikelet mm long , compre ed ; gl me s acute o r su a u a us s a a as as s s b c te , gl bro , the fir t more th n h lf long the pikelet , the econd longer th a n the

s a s a s a ss - u s a u a a a a a s ﬁr t ; lemm p r el y ppre ed p be cent , c min te ; p le longer th n the lemm , ometimes as much as 1 0 mm . long .

TYPE L OCA L ITY : Penns ylvani a (M u hlenberg) . : Sa s n b a s s a nd a s u s a nd a sas DISTRIBUTION ndy ﬁeld , pi e rren , hill , pr irie , Connectic t to Illinoi K n , a and sou thward to Florid a nd Tex as . A A ro 7 . 1 2 0 H A : u . . . . r . s t. : . a 82 7 I L L USTR TIONS B ll U S Dep g g f ; itchc M n . j.

l 1 s ascens w a m il . Pr dr 9 . o 5 2 S . 1 8 5 . Sporobo u purpur ( .) H t .

r s ens w . P ro d r . 2 5 . 1 7 8 A grosti s purpu a c S 8 .

A ro st . 1 6 1 82 . 1 8 1 2 as cens Be au v . ur uras . A st ur w ro s ur a scens . p p g , (B ed on g i p p S )

l t ol u u . A a . . - l era var . a a . . u 9 : 22 8 1 842 . a leoll Ga i 5 7 0 6 . pi if if i R pr B ll c d Br x N me only , for

h n u . . P l . a . 1 6 a 8 88 . seba i a . 9 a Gri c Fo rn Mex Gr m (Type from Cub . )

densi ora u . . . a . 98 . 1 886 . aba B otteri 1 39 ﬂ Fo rn Mex Pl Gr m (Type from Oriz , )

L nn u . . a 1 00 . 1 8 6 m . . i eb a i 8 . Fo rn Mex Pl Gr m (Type from Mexico . )

a u s a us s 2— 3— 3 0— 60 . a s a s a us Perenni l ; c lm erect , gl bro , mo tl y noded , cm t ll ; he th gl bro ; ﬂa t o r u s s a . a s s u a us a lig le ero e , c rcely mm long ; bl de loo ely invol te , gl bro , remotel y cili te

o r — — a a 5 1 5 c m . a s a s u s s 1 4 . with long h ir from p pill e p pillo e onl y , long , the ppermo t horter , mm

a s a s s a s s a - or u o r ss wide ; p nicle contr cted , ometime lmo t pikelike , d rk brown p rple , more le inter — ru ted 7 1 5 . a s a us a s ls a ss o r s a p , cm long , the xi gl bro , the br nche in vertici , ppre ed omewh t

i r u a o 1— 2 — as ﬂor fe o s t as . o r u 4 s s 3 . cending , ne rl y b e , cm long the pper horter ; pikelets mm long ,

a us ﬁ s u a u a a u a as as s s u a and gl bro , r t gl me c min te , bo t h lf long the pikelet ; econd gl me , lemm , a palea about the s me leng th .

“ PE L OC A L ITY : J am a ica : Sa a s s u as as a s a s S DISTRIBUTION ndy pr irie , o thern Tex , e tern Mexico , Revill gigedo I l nd ( ocorro ,

M ason and Wes t Indies to Br a zil .

I c . l . 5 8B H . M an . L L A : . . 83 7 . I USTR TIONS Trin p , itchc f : s i s Vi l a ili e a f a a 9 s s . O 8 . NOTE Thi pecie referred to f p f r Trin Indi by Fournier (Mex . Pl . Gr m .

2 l i 0 . s cubens s i ch . n c . N a t: e 1 2 : 2 3 7 . U . . Sporobo u H t Co tr S H rb .

1 90 9 .

— a u s - s s s a us a u 3 3 0 5 0 . a s a s Perenni l ; c lm den el y ce pito e , erect , gl bro , bo t noded , cm t ll ; he th

a us s at a s - a b a s a gl bro , pilo e the thro t , the lower trongl y felty cili te ; l igule ver y s hort ; l de r ther o r f ﬂat o r u 1 0—1 — s 5 . u s s 1 3 . ﬁrm ti f , erect , i nvol te , cm long , the ppermo t hor ter , mm wide , the

s a a a a as a usua z lower one n rrowed into ch nneled cili te b e ; p nicle erect , lly brown or bron e 1 —1 — a a a 0 5 . a s a us a s s 1 2 cm . y ellow , n rrowl y p yr mid l , cm long , the xi gl bro , the br nche i n verticil a a a a s a o r reflexed a flexuous s s u as 2 o r 3 . p rt , fin ll y horizont ll y pre ding , m ch even cm long , , ome 490 NORTH AM ERI CA N FL ORA [VOL UME 1 7

4 a a t bas as u as 5 . s s a u . a u s a o f them n ked e for m ch mm ; pikelet bo t mm long , c te , omewh t f a es a a s o s . s u e s ecu nd along the lower ide the br nch , the l ter l p edicel mm long ; ﬁr t gl m

a u a a a a s as s s as as a . gr adually c te , little more th n h lf long the pikelet , the econd long the lemm

TYPE L OC A L ITY : I sle of Pines (Cur tiss

: Sa a s uba u i i a as s a i a a a a nd i 1 a . DISTRIBUTION ndy b rren , C to P erto R co ; Ch p ; Co t R c to P r Bol v

h 1 : l s c s n R v . a m . 1 2 n e é . 68 8 9 . 2 1 . Sporobo u ju u Ku t , Gr

03 a A m . 1 8 . a . A . 3 F 1 . . unce a m 1 7 8 a . A groslis juncea Michx . Bor (Type from C rolin ) Not j L 1 2 a t t 24 1 47 1 8 . s A ros s unce A rO s . . a . n ea B e a uv . H eleochloa ju c , g , (B ed on g i j Michx ) n N u td 2 : 3 7 . 1 82 1 . as A r . . e . . ost s un e C olpodi um junceum Trin . in Spreng E (B ed on g i j c a Michx )

l 242 . 1 2 1 . as A rost s uncea i : 8 . C rypsi s juncea Steu d . Nom . Bot . (B ed on g i j M chx ) 2 t 5 1 8 4 . as A ros s unce i i 1 7 a . Un ﬂ . . a . Vi lfa juncea Trin. Gr m (B ed on g i j M chx ) - 2 a t. P éter sb . . 6 : 7 3 . 1 840 . A a M m . A . S sas . Vi lfa Schi edeana Trin . e c d VI (Typ e from rk n ) 2 - 40 7 4 . 1 8 . as ro lu l a P t rsb . . 6 : . S o bo s ra ci i s . M em . A . St é e s V ilfa gra ci l i s Trin . c d VI (B i of p g ) - 2 1 t. Pét rsb . . 6 7 6 . 840 . A A a . e : a . i M em . S Vifa fulvescens Tr n . c d VI (Type from North meric ) - 9 A a t. Pét b . 6 1 33 1 40 M em . . er s . : . 8 . as r c . a i Vi lfa s ubsetacea Trin c d S VI (in note) (B ed on V . g li s

7 4 O . . a o . . a Trin . [ p cit p ge , not p cit p ge

1 5 5 1 85 4 . us u as . n. a . . u . S Vi lfa Vinzenti Ste d y Gr m (Type from R k Co nty , Tex )

223 . 1 5 4 . e u s u . n a . 8 as u . S . A ira triglum i s Ste d y Gr m (Typ from R k Co nty , Tex ) 1 0 1 a 06 . 1 9 . s orobolus un e M an. S c us u e unci dus as . Sporobolus j N h , in Britton , (B ed on p j K nth )

1 02 . a 4 48 . 9 l s . : Sporobolus grac i i (Trin ) Merrill , Rhodor

— ’ s s a us a u 3 - 3 0 60 a u s s s . a Perenni l ; c lm den el y ce pito e , erect , lender , gl bro , bo t noded , cm t ll ;

u s a s s o r i u a us a u r shea th s gl abrou s lig le very hort ; bl de clo ely folded nvol te , gl bro bene th , p be u

u a a as s a us— u s a a s ss a 1 lent o n the upper s rf ce ne r the b e , c bro p be cent bove the b e , le th n mm . — s s — o r a a a 7 1 5 a s a . thick folded ; p nicle mo tly bronze brown , oblong n rrowl y pyr mid l , open , cm — a s a u s a s s 1 2 . a a a ﬂexuous as long , the xi gl bro , the br nche in verticil cm (r rel y more) p rt , , cending

— - o r usu a s a 2 3 . a at as s s s a ss lly widely pre ding , cm long , n ked b e , the hort pediceled pikelet ppre ed ,

o r s so s k s ab u 3 . a u s s u a u a not overl apping only lightl y ; pi elet o t mm long , gl bro ; ﬁr t gl me bo t h lf

a as s s as a s a u a o r a . s long the pikelet , the econd lon g the c te lemm little longer

a a TYPE LO CA L ITY : C rolin . 0 T I O : ba s as a ai s u as n i i i a i a a nd as DIS R BUTI N Pine rren of the Co t l Pl n , o the ter V rg n to Flor d Tex .

A a n . 4 5 5 H . M 83 5 . A r . ro st. I LL USTRA TIONS : Bu ll . U . S . Dep . g g ; itchc . f

ll i n 2 l s M et . i ch c 2 . Sporobo u u (Four ) H t

“ as or obol M ll r l P1 a . 98 . 1 8 6 . s S us iz e i 8 . l a M u ler u r . . Vi f i Fo n Mex . Gr m (B i of p )

13 . 1 3 H b . 1 7 : 3 9 1 . a a a tu H S . N a t. S orobolus erec s . . . p itchc Contr U er (Type from J l p , Mexico , H i tchcock 6 61

— — a u s s s ab us s ss 3 4 - 60 0 7 . a Perenni l ; c lm ce pito e , erect , gl ro , lightl y compre ed , noded , cm t ll ;

- s a s a us u a a s . s s a a he th gl bro ; lig le cili te ero e ring mm long , ometime with few long h ir s at the

s a s ﬂ at o r u s w a s and s a s a s - s ide ; bl de becoming i nvol te , ome h t oft thick , p r ely p pillo e hi p i d with

a o n a u a ul - a 1 s a s s s s as u as 5 . a long h ir the m rgin , otherwi e gl bro , the m in c m bl de m ch cm long nd 4 —4 . f u s a and u 2 cm . s o a s mm wide , the ppermo t n rrow invol te , long , tho e the in nov tion slender — — nd u a - 4 a a a wn 1 0 1 5 cm . 3 c m . a s a us invol te ; p nicle n rrow , d rk bro , long , wide , the xi gl bro , the a — m s s s as a 2 3 c . s s a us br nche in verticil , lender , cendin g , n ked below , the lower long ; pikelet gl bro , s — nd a ss a u a a es a u 4 a O . hort pediceled ppre ed lon g the pper h lf f the br nch , bo t mm long , the

s s t ss a 1 . s u a u . s as a s pedicel mo l y le th n mm lon g ; ﬁr t gl me c te , mm lon g ; the eco nd long the

a and a a a a t a u s a a s lemm p le , the l tter m t rity plitting down the middle b y the enl rged c r yop si ,

a a a u a u 1 . a s s a u at a 2 e ch p rt c te , bo t mm wide ; c r yop i elliptic , br p tl y poi nted e ch end , mm . long , 1 mm . wide .

L A L : aba M uller TYPE OC ITY Oriz , Mexico (

: a s and u S a a u . DISTRIBUTION B nk Open gro nd , t te of Ver cr z

2 3 . l s Cu tis su ase m all ea ne l r l . U . . D e Sporobo u (V y) S ; K r y , B u S . p

r t. 1 9 . Agr . Ag os 8 5

S o obolus o r idanus va i ss as a as s s A m 2 r . C url i i . . : 290 . 1 896 p r ﬂ V ey ; Be l , Gr e N .

a u s s s s s a us u s a as Perenni l ; c lm den el y ce pito e , lender , erect , gl bro , witho t node bove the b e 3 0— 7 0 . a s a s a us s a u s u cm t ll ; he th gl bro , omewh t keeled , the ppermo t very long ; lig le very short A RT 7 1 93 7 AC A 491 P , ] PO E E

s a s f flexuous fla t o r u a us stifll s u su bl ades lender , r ther ti f , , i nvol te , gl bro , y pilo e on the pper rface

— — - 1 . u a a bas 1 5 30 . s a s a a ne r the e , cm long , mm wide , the c lm bl de hor t ; p nicle pyr mid l , open , — b u o s sca us a s a fﬂ 7 20 . a s a s r s as cm long , the xi gl ro ligh tl y bro , the br nche r ther ti y cendin g , s a s s a s a a s a s a 4—7 olit ry or in two , pilo e in the lower xil with few lon g h ir , r ther d i t nt , the lower a a s u su a a . s s a ss a a cm long ; pikelet ppre ed long the m in br nche , ll y not overl pping , longer th n the

s s a us a u . u s a u u a a u a as a pedicel , browni h , gl bro , bo t mm long ; gl me bo t eq l , c min te , lon g s or longer th a n the lemma and p alea .

TYPE L OC A L ITY : Florid a (Curtiss) .

: b a s a i a a and a . DISTRIBUTION Dry pine rren , North C rol n , Georgi , Florid

1 2 H . M an. 832 A r A ro st. 7 : . . 4 . . I L L USTR A TIONS : B ull . U . S . Dep . g g f ; itchc f

r i i i h P i l l Th c c . . . o . h 4 1 1 s a c c as . : 6 1 . 24 . Sporobo u p H t ro B o S W 2 1 9 8 .

- — a u s s s s a us l 60 1 00 . a s a s a us Perenni l ; c lm den el y ce pito e , gl bro , noded , cm t ll ; he th gl bro ,

a o n a o f u th e w ﬁ rm s s u s overl pping the lower h lf the c lm , lo er , loo e , hining ; lig le very hort ,

a - s a s a u s ﬂexuous a u s - a a t as a cili te ero e ; bl de elong te , i nvol te , lender , , gl bro , lon g cili te b e , t pering

to a a a as u as 3 0 . a s a u s a s long ﬁne point ; p nicle open , n rrow , m ch cm long , the xi gl bro , the br nche

s fﬂ as s a o r s a us a s as u as 1 5 . ti y cending , olit ry in two , gl bro in the xil , the lower m ch cm long ;

s a ss a s a nd a s a u 3 . a spikelet ppre ed along the br nche br nchlet , bo t mm long , longer th n the p edi

s s u a a u i a a u a as as s s u a cel ; ﬁr t gl me n rrow , c m n te , bo t h lf long the pikelet , the econd gl me , lemm , a nd p ale a abou t equa l .

TN P E L A L T : a d s a as Thar OC I Y P re I l nd , Tex ( p : a s a s u as DISTRIBUTION Known only from P dre I l nd , o thern Tex n M a . . 8 5 3 . I L L USTRA TION : H itchc . f

ll l 3 3 : 22 9 l s ifolius a e . T e 2 . teret . 5 Sporobo u H rp r , B u orr y C ub 1 906 .

— a u s s s a us u s a as 60 80 Perenni l ; c lm ce pito e , erect , wir y , gl bro , witho t node bove the b e , cm .

a s a s s at a s and s a a t ll ; he th pilo e the thro t , the lower hining becoming omewh t ﬂ ttened , the

u s u s a u . a s a s o r ppermo t very long ; l ig le ero e , bo t mm lon g ; bl de elong te , lender , terete

a a as ﬂexuo us a u s s o n u su a at tightl y folded bove the ch nneled b e , wir y , , gl bro , p ilo e the pper rf ce — 1 a a a a 1 5 20 as s ss a . O . a s b e , mo tl y le th n mm thick ; p nicle p yr mid l , pen , n rrow , cm lon g , the xi a s a u us a a a s a s a nd el s as o r s a ngled , c ber lo , the c pill r y br nche , br nchlet , pedic cending omewh t s a s a us s a s O s a s pre ding , c bro , the pedicel , if br nche f the third order , often horter th n the pikelets ,

f i u - 4 a o s s s s . us s u if the econd order , longer ; p kelet p rp l i h brown , mm long , gl bro ; ﬁr t gl me

a a o r a ua a and s as s s a a . h lf long the p ikelet little longer , the econd eq lin g the lemm p le

L A L T : a u a H ar er TYPE OC I Y Ne r Mo ltrie , Georgi ( p : s b a s a u ri and b Trac 1 483 and DISTRIBUTION Moi t pine rren , Georgi (Mo lt e , the type , Ir y , y ) a a S u F a lts North C rolin ( o thport , NOTE : I n the type the bla de is ch a nneled for a short dis ta nce a t the b as e bu t soon becomes terete a nd glabrou s ; the su mmit of the s hea th a nd the b as e of the bla de above are dens ely long a s are a a so a nd a a nd pilose . In th e Irby s pecimen the bl de p rtly terete or ne rly p rtly compressed th e u e b a s are a a a nd a tightly folded . In So thport Specim n the l de p rtly ch nneled p rtly tightly folded b i s s r s a be a u ut the margi ns a re s cabrous and th e b as e s not pilo e . The e fo m c nnot properly ev l a ted u a a i a a a ntil more m teri l s v il ble .

2 l ﬂ ri us h a m . F1 . . . 5 5 0 . 1 8 s o dan C . 60 . 6 . Sporobo u p S U S

i s ii u s s s a us no s P a us a S. Curt s erenni l , more rob t th n ; c lm ce pito e , erect , gl bro , with node

b — a s m a as 7 5 1 00 . a s a s ss u s s s a su ove the b e , cm t ll ; he th compre ed , gl bro , ometime pilo e ne r the

' u s a s u us s a s o f a u s ﬂat mit ; lig le very hort ; bl de contin o with the he th , tho e the m in c lm mo tly ,

n a a a u — m m s at as s a u us o a u a 1 5 . mo tly folded b e , c ber lo the m rgin , r ther br ptl y c te , elong te , w s O a s s s a u as and su o f ide , tho e f the innov tion lender , tightl y folded , pilo e ro nd the b e mmit the

s a a s a s u cm . a s a s a ul us he th ; p nicle n rrow , open , mo tl y p rple , long , the xi ngled , c ber o , th e

a s and a s as s a us s o r u s a i s s a or br nche br nchlet cending , c bro , pilo e p be cent i n the x l , olit ry more

- — 1 5 . 4 o r ss us as u as s s 5 . s s a le cl tered , the lower m ch cm lon g ; pikelet mm lon g , mo tly horter th n 492 NORTH AM ER I CA N FL ORA [VOL UME 1 7 the pedi cel s ; gl umes subequ al or the ﬁr s t shorter ; lemm a a nd p a lea mostl y a little longer th a n the second glume .

TYPE L OC A L ITY : l\l idd le a nd wes tern Florid a .

I : L o w b a ns a a nd a . DISTR BUTION pine rre , Georgi Florid n 1 23 H . M a . . 8 A A . . 3 4 D . r . ro s t 7 : . S . e I L L USTR A TIONS : B u ll . U . p g g f ; itchc f

n. 1 l i . 5 7 M a 6 . 84 8 . l s h e e e s . a a 2 7 . Sporobo u t ro p (A Gr y) A Gr y , 3 1 Ann . e . . . 3 : 2 3 . 835 . l h eterole s A . a L V i l a p i Gr y , y N Y - l h er l A 5 9 . 1 847 . as Vi a et o e s . a . 2 . 8 t hete ole s as s . A gros i s r p i Wood , Cl Book ed (B ed on f pi Gr y )

- — a cu s s u a u s s l 3 0 7 0 . a s a s Perenni l ; lm den el y t fted , erect , gl bro , mo tl y noded , cm t ll ; he th

s at a a us o r s s s a s s o n a somewh a t pilo e the thro t , gl bro the lower ometime p r el y p ilo e the b ck ;

s a s a fl at i u at a u a s a us ligul e very hort ; bl de elong te , , becom ng i nvol te the Slender tten te c bro — i n es a a i a 5 2 0 . a s s a u u s 2 m m . o r es s a tip , l w de ; p icl n rrowl y p yr m d l , open , cm long , the xi c ber lo , — u b - fl owere d a 6 a s as d o r s a s a s a 3 . the br nche cen ing pre din g , c bro , n ked elow , few bove , cm long , — — i a 2 4 . u s s i ts a s 4 6 . u s a u s the lower often cl tered ; p kele gr yi h , mm lo ng ; gl me c m n te , the fir t mm — nd a a s a s u a a s 4 6 . a a long , the econd mm long ; lemm p le horter th n the eco nd gl me , the p le

a a a s s s u a 2 . a s slightl y longer th n the lemm ; c r yop i globo e , n tlike , ne rly mm thick , ﬁn ll y plitting the p ale a .

L AL : a Gr awe . TYPE OC ITY W tertown , New York ( ) I B : a s u b Sas a a a nd and s u a u DISTR UTION Pr irie , Q e ec to k tchew n Wyoming , o thw rd to Connectic t , nd as as i s Ar a sas a . Ill noi , k n , e tern Tex

A A ro st . 1 2 1 H a i . . 830 : u . . . . r . . . I L L USTR A TIONS B ll U S Dep g g 7 : f ; itchc M r f .

l s in e s ll T l 1 : 1 2 8 . ase . e 5 8 . 8 88 Sporobo u t rruptu V y , B u orr y C ub

l zo n cu as A t ru t b 1 5 : 8 1 888 . s s S . n er us . S o o bo us a s u b . u . u p r ri i Th r ; V ey , B ll Torrey Cl ( ynonym of i p )

— n a ul s s u ab us u s a as 3 0 60 . Peren i l ; c m den el y t fted , erect , gl ro , witho t node bove the b e , cm a s a s a us o r o r ess s s s at a u t ll ; he th gl bro the lower more l oftl y pilo e , pilo e the thro t ; lig le very

b a — s r a es ﬂat or d s a s s to ab u s s 1 0 1 5 c m . ho t , cili te ; l d erect , folde , p r el y pilo e gl ro , mo tl y long , the

— - u s s 1 2 . a i s a a a b s u us ppermo t horter , mm wide ; p n cle n rrowl y p yr mid l , Open , rowni h pl mbeo , — b 1 0 2 0 c m. ax s a us a es s a as o r ﬁ a s a s a long , th e i gl ro , the br nch di t nt , cendin g n ll y omewh t pre d in a us s s a a a s s as o r a ss g , gl bro , mo tl y olit r y , n k ed below , the br nchlet hort , cendin g ppre ed , the

s s a s u b a pedicel mo tly Shorter th n the pikelet s ; spikelets abou t 6 mm . long ; ﬁr st gl me a out h lf as as s i s d u su a a u as a and a long the p kelet , the econ lly bo t long as the l emm p lea .

L A L : Sa n a s s A a R us b TYPE OC ITY Fr nci co Fore t , rizon ( y IB : as s a s a nd s A a DISTR UTION Gr y pl in hill , northern rizon .

L A : u . . . A L S . . A r t 1 22 M a n 2 9 r s 7 : . H . . . 8 . I USTR TIONS B ll U Dep g g o . f ; itchc f

2 9 . l s a s N e i e s n h R év . am . l . x i Sporobo u rgutu ( ) Ku t , Gr Supp v . 1 3 8 0 .

Vi l a a r ul a A s ro s t . 3 95 as . 1 82 . 9 f g Nee , g Br . Vi l a a kansa na ri - 2 . M m A e . a . St. P t r 6 4 . 1 0 . A a s . f r T n c d é e sb . VI . : 6 84 (Type from rk n as ) Vi l a su b r a m i d t M - 2 a a . em . A a . t . P ét s . 6 6 1 1 a b 840 . e : . . s f py Trin c d S r VI . (Type from Tex ) Vi l a Ri ch ardi S n S u . 1 . a 5 3 . 1 . s . f te d y Gr m 85 4 . (Type from We t Indies ) r lo dea u a os i . A a . 1 a . a 8 62 u . . 1 : 863 . as g 88 . L B ckl Proc c d Phil (Type from l no Co nty , Tex ) s a beana u A . . a . a 1 a . 8 62 0 . a n ab u : 9 1 863 . S S as . B ckl Proc c d Phil (Type from Co nty , Tex ) S o robol us nol ero hi l a H s . . A . m . 6 1 a . 3 : 5 4 . 885 . p p em l Biol Centr Bot . (N me only ) Vi l a no tero hi l a u . ur P l . . . 9 a . a . 1 886 . u b f 9 . p R pr ; Fo n Mex Gr m (Type from P e l , Mexico )

a s a s a 2— 3— 1 0—40 m u s u s s a us c . Perenni l , i n pre ding or pro tr te t ft ; c l m lender , gl bro , noded , a s a s ab us s at a u fla t ; g a a b a 1 . a s t ll he th l ro , pilo e the thro t ; lig le cil i te mem r ne mm lon g ; bl de , — s 1 0 - ss a c m . 2 4 . s a s a a as s a us on mo tl y le th n long , mm wide , p r el y lon g cili te tow rd the b e , c bro a a s a a a 3— 7 b u es g ; . a a s a s a the m r in p nicle p le , pyr mid l , cm long , r rel y longer , the xi gl ro , the br nch s a s a s ab us 1 — g 3 . a s a pre din , omewh t vi cid , gl ro , cm lon g , n ked below , clo el y flowered bove , s a s s k s a a 1 s u u the lowermo t in di tinct verticil ; pi elet little more th n mm . long ; fir t gl me min te , s a s as a a nd a the econd long the lemm p lea .

L O A L T : a TYPE C I Y Br zil . : Sa a s s a a s s a nd a s as and DISTRIBUTION nd y or gr velly oil , e peci lly long treet long the e hore , in the i i In a a i 5 0 1 1 a sas a nd a nter or lk l ne , K n Color do to L ou i s i a n a and Tex a s ; A rizon a ; s ou thern Florid a a s i a A i l o trop c l mer ca . L L A u . : . S . s A . A . r r s . 1 2 8 H a . . 83 8 . I USTR TIONS B ll U Dep g g o t 7 : f. ; itch M n j A RT 7 1 93 7 A C A P , ] PO E E 493

l s B le i a e ll . o 3 0 . c s T e l 1 0 : 1 2 8 1 . 8 Sporobo u u k y V y , B u rr y C ub 8 3 .

— — a as s ss u s s a us l 3 - 40 1 0 0 Perenni l , the b e trongly compre ed ; c lm erect , lender , gl bro , noded ,

. a s a s ss s a s s at a cm t ll ; he th compre ed , trongly overl pp in g below , den el y pilo e the thro t , on the

a and o n a u s a s ﬂat a us s a u s a m rgin the coll r ; l ig le very hort ; bl de , gl bro except the c bro m rgins , — — a 3 7 or as u as 1 0 . a s O 1 0 3 0 . a s a us elong te , m ch mm wide ; p nicle pen , cm long , the xi gl bro , the

a s a a s a s a a s a a us on a s a br nche c pill r y , widely pre ding , olit ry , r ther di t nt , gl bro the xil , n ked below , —2 nd r 5 0 . b a s s s a o ss a s s a s cm long , the r nchlet mo tl y hort more le ppre ed , r ther clo el y ﬂowered ;

s s . u s a s a s s a pikelet mm long ; gl me n rrow , the ﬁr t l ittle horter , the econd little longer th a n

a u a a a a u as a s a s a s a 1 the c te lemm ; p le bo t lon g the lemm , plitting the gr in ( mm . long) ripens .

TYP E L OC A L ITY : Tex as (B uckley) . O : h ic ke ts u a nd a a s a nd a s as and as DISTRIBUTI N T , Open gro nd , long ro d tr il , Tex e tern Mexico ; u a a common in Y c t n . A A 1 9 A ro s t. 7 : . 4 H . M a n O : u . . S . . r . 5 L L . 8 . I USTR TI NS B ll U Dep g g f ; itchc f. 46

l 3 1 . texanus ase l n s . o . N a . 1 U . . Sporobo u V y ; Cou t C tr S t H erb . 1 5 7 . 8 90 .

a in s s a u s u s o r s a a s a u s Perenni l , clo e pheric l t ft ; c l m erect pre ding , r ther lender , wiry , gl bro , — a u 2 - 0 0 a r b u 3 5 . s a s o ss s at a a s o r bo t noded , cm t ll ; he th more le pilo e the thro t , gl ro the lower

a - l ﬂ t s s u a u . a a s a u s a us p pillo e pi o e ; lig le bo t mm long , cili te ; bl de , often i nvol te in drying , c bro o n u su a and o n a ns a u s o r a so a s es s a 1 0 the pp er rf ce the m rgi , gl bro ne rly bene th , mo tl y l th n — 4 ﬂ — . 1 W a di u e a a a a s s t a u 1 5 3 0 cm . cm long , mm . ide ; p nicle Open , , bre king w y m t rity , long , a u as a s a s a us a s a a a l s and bo t wide , the xi ngled , c bro , the br nche , the c pill ry br nch et the long

s stiﬂi a a ne r a s s s 2 . us s u a u o pedicel y pre ding ; pikelet mm long , gl bro ; ﬁr t gl me c te , thi d to h lf as as s s a u a s a u a and a a long the pikelet , the econd c min te , lightl y exceeding the c te lemm p le ,

a s a the l tter plitting e rly .

Y L A L : S a s u as N ealle T PE OC ITY crew Be n , Pre idio Co nty , Tex ( y n i : s as a s and s a a s s a sas a as a d . DISTRIBUTION Me , v lley , lt m r he , K n to Color do , Tex , New Mex co

A A . A ro st . 1 63 H . M an . 8 5 1 : u . r 7 : . 4 . I L L USTR TIONS B ll . U . S . Dep g g f ; itchc f

3 2 l i i il ns s R a i ll i s . . . s s a . I I e . s Sporobo u bra e ( dd ) H ck . B u H rb B o 1 4 90 .

A i r a brasi li ensi s a A 6 2 ro st. as . 3 . 1 8 3 . R ddi , g Br E r r t des A a . a os s a ro e es ros t. as . 5 09 . 1 82 9 . as A a b as s s g i i i N , g Br (B ed on ir r ilien i R ddi )

a u s s a u s a us u s a as a u 1 Perenni l ; c lm in m ll t ft ; erect , gl bro , witho t node bove the b e , bo t a s a s s a a o n a of u a us s a s s meter t ll ; he th ever l , overl ppin g the lower p r t the c lm , gl bro , p r ely pilo e or a us at a u s a a s ﬂ at o r t s o f a s u gl bro the thro t ; l ig le hort , cili te ; bl de ho e the innov tion invol te , — s a us on th e u su a a us a a 2 3 m m . a s c bro pper rf ce , gl bro bene th , elong te , wide ; p nicle open ,

a f — a us s a a o a 6 1 5 . a s r ther more th n h lf the entire length the pl nt , cm wide , the xi gl bro , the lender

a s a s and s s a n 1 — 3 on a s us s s a br nche , br nchlet , pedicel pre di g , together the xi , the cl ter di t nt ; — s k ts l 2 - flowered a 3 - flo wered a u s 2 o r 3 i es as pi ele , r rel y , bo t mm . long , the pedicel t m long as th e s i u s s a u ua a t s a s a u a a u p kelet ; gl me omewh t neq l , l it le hor ter th n the pikelet , c te ; lemm c te , u o n a u a a s . ro nded the b ck , witho t l ter l nerve M E L A L T : a a . OC I Y Rio de J neiro , Br zil I : Sa a nas u ba a s a . DISTR BUTION v n , C ; l o Br zil : s s is a S orobolus s its 2 - fl o w ere d s s b a us NOTE The pecie ret ined in p , in pite of Often pikelet , ec e of abse a a a the nce of l ter l nerves in the lem m .

3 l r 3 1 1 3 . s ri h . . e . 1 7 : t c ode s i h c . o n . N at Sporobo u H t c C tr . U S H b 1 9 1 3 .

i chodes . S o obolus ca llari s as a H as s O f S . tr . . 1 : 2 3 . 1 893 . . S N t. b . 8 p r pi V ey , Contr U er (B i ) Not a ll r i c a s M . 1 85 1 . S . pi i q

n — u l a - s a a us u u u s s s 3 0 40 . Peren i l , gl bro thro gho t ; c lm ce pito e , erect , cm high ; lig le ci i te ero e , — a u ﬂ at o r u u a i s a us s 4 8 . a s s u es a s bo t mm long ; bl de lly nvol te , peci lly the lender c bro point , — — 4 a l . 2 l a 3 . as u as . u s u cm long , the lower m ch mm wide , the ppermo t c m bl de cm lon g ; p nic e 49-1 NORTH AM ERI CA N FL ORA [VOL UME 1 7

— — - 2 4 . a s s a o r a s a 1 0 1 5 . s oblong elliptic , open , cm long , cm wide , the br nche ol it ry in p ir , omewh t

a b a a no s a s at as s a all s a sprea ding , n ked elow , c pill ry , hort br nche b e , the pedicel delic te , pre ding , b u as a s s o r a s s s the u ltim ate l atera l ones a o t long the pikelet l ittle longer ; p ikelet browni h ,

u s a ua us . a and a a a . bro d , mm lon g ; gl me ne rly eq l , oblong , obt e , mm long ; lemm p le

- ua u s u a s u a a 1 . m m . . eq l , obt e ; fr it ﬂ ttened , mooth , brown , Oblong circ l r , ne rly mm lon g , wi de

: a a u a a a a a P alm er 5 1 2 TYPE L OCA L ITY Rio Bl nco , ne r G d l j r , Mexico ( in

s and s u a u a s a nd a s . DISTRIBUTION : Dry ledge rocky hill , Chih h to Morelo J li co ’ i m ann s 7 0 7 a nd 7 08 C o nso u itla e a u a s s a s s NOTE : L eb , from q , V r cr z , h ve lightly m ller pikelet

but a s . (abou t 1 mm . long) gree otherwi e

h R m . 1 l s atrovirens H M B K n ev . a : 68 . 34 . Sporobo u ( ) Ku t , Gr 2 1 8 9 .

1 1 5 . . 1 : 38 . 8 1 E . K . . . S Vi lfa a tr ovirens H . Nov Gen p 1 1 7 as Vi l a atrovi rens 2 : 36 1 . 8 . . V e . . S . S s A grosti s atrovi r ens R 81. y t g (B ed on f - 25 trovi rens . l 6 5 1 8 . a . . 7 . 81 : 8 . E . . S E . K Vi lfa ai roru bens H . Nov Gen p p ( rror for )

— - — u s s s a s a u s a us l 2 1 0 3 0 . a Perennial ; c lm ce pito e i n r ther m ll t ft , erect , gl bro , noded , cm t ll ; u s s a s ﬂ at o r s u s a at shea th s gl abrous ; lig le ver y hort , ero e ; bl de becoming loo el y invol te , e peci lly — 2 3 . a us s a asa u a u 5 . 1 . a the s lender point , gl bro , mo tly i n b l t ft bo t cm long, mm wide , r rel y mm ; — — - 4 w 6 . s a 7 1 5 . a s p anicles oblong , mo tl y d rk colored , open , cm lon g , r rely lon ger , mo tl y cm ide ;

a us a a a c s a a at a s s s a s the a xi s gl bro , the c pill r y br n he often horizont l , n ked b e , mo tl y olit r y , ome

s a s a s or s a a s s i ts s - wh a t di t nt , the lower with hor t cending pre din g br nche , the p kele hort pedi

l d a ss a nd s set a a a s and a s s ts ce e , ppre ed clo el y lon g the m in br nche the lower br nchlet ; pikele

u s s a u u a ss a a as as s s abou t 1 mm . long ; g l me omewh t neq l , le th n h lf long the p ikelet , the ﬁr t obtuse .

L O A L : E l n a . TYPE C ITY Pe on , V lley of Mexico : s a and s u DISTRIBUTION Rocky hill , centr l o thern Mexico

E . . . 7 l . 68 5 K . S : . I L L USTR A TION : H . . Nov Gen p p

i i s i P ac f. R . R . R . l s a e T n T . e 3 5 . Sporobo u ro d ( or ) orr p 1 8 5 8 .

1 A nn. e . . . 1 : 1 5 1 . 824 A grostis a iro ides Torr . L y N Y .

1 . 2 . 2 : 7 66 . 84 1 as A rosti s r u . . . . d a i oi es . Vi lfa a iro ides Trin . ; Ste d Nom Bot ed (B ed on g Torr )

A a . a . 1 8 62 : 90 . 1 863 m u . s as . Sporobolus diﬁ us i ssi us B ckl Proc . c d Phil . (Type from we tern Tex ) A a 2 : 2 1 2 1 8 t a a 89 . an S or o bolus a l ss m us as ...... S p i i V ey ; Br nd Proc C lif c d II (Type from Diego ,

C aliforni a . )

m inor as a . . a . A a . . 2 : 2 1 3 1 8 m us var . 9 8 . an Sporobolus altiss i V ey ; Br nd Proc C lif c d II . (Type from S

E u a a . nri q e , C liforni ) — — a a u u s u s to s a n a us 2 3 - 5 0 1 00 Perenni l , in l rge to gh b nche ; c lm erect pre di g , gl bro , noded ,

a s at a t u s a ﬂa t . a s s s s a b cm t ll ; he th trongly pilo e the thro ; lig le ver y hort ; bl de elong te , , Soon e

' u O ﬂexuous s a us o n u su a and o n t coming in vol te , ften , c bro th e pper rf ce the long ﬁne p oin , a s a us a u s s a 4 w n s us a ua s . a s pilo e j t bove the b e , gl bro bene th , lly le th n mm ide ; p icle nearl y a o f o f a at a u a or two s as h lf the length the entire heigh t th e pl nt , m t rity h lf third wide , the a xis

a us stifl s a s and a s a w s a a at as an gl bro , the lender br nche br nchlet fin lly idel y pre ding , n ked b e d n a s s 2 a s s a s a o s . n a a a in the xil , omewh t di t nt the xi ; pikelet mm lo g , ggreg te lon g the upp er a o r two s O f a s s u a u a a s as s h lf third the br nchlet ; fir t gl me bo t h lf long the pikelet , commonly a a s a u s u a and a a a u u a a a s f lling tow rd m t rity ; econd gl me , lemm p le bo t eq l , the p l e p litting as the grain ripen s .

L A L : a s O f Ar a sa s a u a s Jam es TYPE OC ITY Br nche the k n River ne r the Rocky Mo nt in ( ) . O : a s a nd a s s a a a a s u a DISTRIBUTI N Me dow v lley , e peci lly in moder tely lk line oil , So th D kota to as as and s u a a and e tern W hin gton , o thw rd to Tex s northern Mexico . A A A : u . S . . r . rost. . 1 2 7 H LL . 7 : M an 8 I USTR TIONS B ll U Dep g g f ; itchc . . 47 .

l W i h i i n 3 6 . s o i n ll T Sporobo u r g t Mu r ; Scr b . B u . orrey Club 9 : 1 03 1 2 8 8 .

B a u hez < r c t winsk u . P 1 1 i . . a . 1 886 87 . T . K a rwinsk 1 y Fo rn Mex Gr m ( ype from Mexico , y 0 1 5 ,

l ol 5 g' § ’ S oro bol us ch a n S eri R e e rt. . 1 p ﬁ , p S . 7 : 295 . 1 92 1 . San L u s s Mez p Nov (Type from i Poto i , Mexico . )

— a a s u s u s us and a 1 2 s a o r s Perenni l i n l rge den e t ft ; c lm rob t , erect , ﬁrm h rd , meter t ll , ome s s a nd s a ss a a a but usua time more lender omewh t le th n meter t ll , lly erect ; she a th s sp ar sel y . A RT 7 1 93 7 AC A 495 P , 1 PO E E

— ﬂa s at a u s s 1 2 . a s a t ss pilo e the thro t ; lig le den el y pilo e , mm long ; bl de elong te , or more or le — u us s 3 6 . s a s a and a s invol te , in the rob t form mm wide , in m ller form n rrower rolled ; p nicle

— a b us a a s 3 0 60 . s s s s a s a p le , n rrow , open , mo tl y cm long , in m ll pecimen horter , the xi gl ro , the

e — 1 a s s a s tiFfl as 5 0 . s a s a ss br nche crowd d , tr ight , y cending , cm long , the hor t br nchlet ppre ed , b s as o r a so s s 2 . s u a u clo ely flowered from the b e ne rl y ; pikelet mm long , the fir t gl me o t one

as s s u s a s a a nd a a a u ua . third long , the econd two third to three fo rth lo ng ; lemm p le bo t eq l

L A L : a a A a r n le . TYPE OC ITY P nt no . rizon (P i g ) : sas a nd a s s u a nd s as s u a i i a a nd a DISTRIBUTION Me v lley , o thern we tern Tex to o thern C l forn centr l

Mexico . 9 A A ro 1 . 8 H . M an. . 8 4 . S . . r . s t. 7 : 4 5 I L L USTR A TIONS : B u ll . U . Dep g g f ; itchc f a a ro des s u a a a nd NOTE : This s p ecies seems to intergr de with S . i i in o thern C liforni northern a bus s s a a s a nd a s s b a s a re s Mexico . The t ll ro t form with clo e n rrow p nicle ppre ed r nchlet di tinctly ' d iﬂe r n a a ro des a u b a s a nd s a f u s e t from the more spre ding S . i i with n rrow or invol te l de omewh t di f e a h a a a s tiﬂi as s . a Wr t s p nicle The s m ller forms of S . ig ii till ret in the n rrow p nicle with y cendin g

branches .

l . l s in si s in n h R é . am . 3 7 . n T v m e . Sporobo u do g ( r ) Ku t , Gr Sup p

ii 1 8 3 0 . xv .

Vi l a dom n ens 2 1 . i i s . n 1 . td . 2 : 5 9 . 8 f g Trin in Spreng N eu . E A ost s dom n as Vi l a i ens s a 3 : A . 5 7 0 1 827 . S u s . S . S s . V e . . . gr i g i ch lte , in R y t g M nt ddit (B ed on f dom n en s i g si Trin . )

S orobolu n n u a . s i ordi al us R e e r t. . . 1 7 294 1 92 1 . b S : . p Mez , p p Nov (Type from C )

— - — a u s s a u s 3 5 5 0 1 00 cm . a s a s a us Perenni l ; c lm ce pito e , erect , gl bro , noded , t ll ; he th gl bro ,

t ﬂ at a ua - s a a u s a 1 . a s p ilo e the thro t ; lig le den el y cil i te , mm lon g ; bl de , tten te pointed , s a us o n u su a s a us o n a s a us a a c bro the pper rf ce , ver y c bro the m rgin , gl bro bene th , elon g te , — — 3 6 . a e a w a a s a s o r s s l o 1 5 . s mm wide ; p nicl n rro , mo tl y cm long , r ther den e , the br nche cending a ss v a u a a a o n a s or o r ss s ppre ed , o erl pping , irreg l rl y rr nged the xi the lower more le i n verticil ;

2 - s s u S s a u . s us o n s a ss a p ikelet bo t mm long , den el y cl tered the hort ppre ed br nchlet ; ﬁr t gl me a as as h lf long the spikelet .

L CA a TYPE O L ITY : S nto Domingo . 0 T O : a s a a nd s a as s u a a nd s i s DIS RIBUTI N Cor l nd rock long the co t , o thern Florid the We t Ind e ; uc ata n Y .

A 8 40 . : u A l H M an . . A ro s t. 7 : . 4 5 7 . I LL USTR TIONS B ll . U . S . Dep . gr . g f ; itchc f f f a i s : S . ar utus u su a a s z b a b a s s NOTE Di fering from g in the lly l rger i e , ro der l de , ti fer longer p n cle , a nd a s l rger pikelets .

3 . 1 8 98 . 8 l s i N h l T l 2 : 8 8 . an e s as l . e 5 Sporobo u g g t u , B u orr y C ub

S orobolus cr tandru s va 0 bust 1 5 1 89 . r . ro 6 . s H b . : u as . . S . N a t. p yp V ey , Contr U er (Type from as N ealle S . robus l us u 1 83 1 . Tex , y Not K nth , n S orobolus cr tan r v as S . i a d us a r . nte 4 1 9 1 2 . a u 1 : 1 1 . s s s . . p yp gig Jone , Contr . We t Bot (B ed on g g teus as N h . )

' a s n r — s a a s as u S. cr ta d us u s us 1 2 Perenni l , re embling yp ; c lm erect , rob t , meter t ll ; bl de m ch 1 ontracl us as . usua ss s a S . c cm wi de , lly le p ilo e o n the coll a r ; p a nicle usu all y thicker th n in , s — s s s s 3 . le pikelike ; pikelet mm long .

L A L : a Ana u Wooton 394 TYPE OC I TY Don Co nty , New Mexico ( ) : a nd sa s sas s as A r a . DISTRIBUTION Me ndhill , we tern Tex to izon L A H M a n L : . 8 45 . I USTR TION itchc . f.

3 9 l 3 2 : . l s ﬂ xu s T T e us b ll . e o R . Sporobo u ( urb . ) ydb B u orr y C ub 60 1 . 1 905 .

’ Vi l a cr l ndra va a r . ex o 2 1 87 8 . u sa 2 8 . u . R Oth s Su . f y as r . . p fl Th rh ; V ey , in Bot Wheeler rv S o obolus r ta nd V i l a c r us va r . exuosus 9 1 880 . as b . a a 2 : 26 . u . s . f p r yp fl Th r in S W t . Bot C lif . (B ed on cr tandra va x r . e uos yp fl a Thurb . )

a nd r a s b S. cr ta ndrus a a s a Pe enni l , re em ling yp ; bl des often involu te ; p nicle l rger , more open s a a s a b a s flexuo us o r reflexed a s pre ding , often elong te , the pre ding r nche , drooping , , the br nchlet a s s a and s l o pre ding loo el y flowered .

M E L OCA L ITY : Neva d a and A rizona (Wheeler T : sas s as s u a s u as a i a a nd DISTRIBU ION Me , we tern Tex to o thern Ut h , o the tern C liforn , northern ex1 c o M . L A : H L . M an. . 8 1 I USTR TION itchc f 4 3 . 496 NORTH AM ERI CA N FL OR A [VOL UME 1 7

2 h . Am . . . : 3 3 l s c n ac s i c c 0 . 1 9 1 5 40 . Sporobo u o tr tu H t Jour B ot

1 0 2 b 9 : 3 . 1 88 . t tus b . u . u Sporo bol us cr ypta ndr u s var . s ri c Scri n B ll Torrey Cl 3 2 1 0 1 as l A A o s t . : 6 . 9 . orob u r . S o s c . . S . . r r Sporo bol us str i ctus Merr . Circ U Dep g g (B ed on p yp n f o tra ctus H . S . s tr cl u a . i . st ctu s b a s b as s O S . c s l a ndr us va r . ri Scri n ; l o the i itchc ) Not Fr nch

1 893 .

ta nd us u s a s a nd s as u as a s S . c Perenni l , re embl in g ryp r ; c lm erect ; p nicle den e pikelike , m ch

u u a u at as a u s a . 0 . s 5 cm long , lly incl ded the b e , r rel y entirely incl ded in the he th

L A L : a L A a r n le . TYPE OC ITY C mp owell , rizon (P i g ) ' : s as blu ﬂ s and s a s a a a a nd s u a DISTRIBUTION Me , dry , ndy ﬁeld , Color do to Nev d , o thw rd to

s as s u as a a a nd S a . we tern Tex , o the tern C liforni , onor

8 1 D . an . 4 M . I L L USTR A TION : H itchc . f

4 n. 5 M a 7 6 . 1 8 8 . 4 1 l s c an s T . . a . Sporobo u rypt dru ( orr ) A Gr y ,

1 1 5 1 . 1 824 . A nn . e . . : A grosti s crypl a ndr a Torr . . L y N Y v A m 2 239 1 839 s s a la H . . . . : . . l a tena c ss m a a r . a sc co Vi f i i f i ook Fl Bor (Type from Menzie I l nd ,

um b a i as . Col i R ver , W hington ) 2 - 6 9 1 40 o t s A a . t . P te s . . 6 . 8 . as r s i M em . é r b : A Vi lfa crypta ndra Torr . Trin . c d S VI (B ed on g

cryptandra Torr . )

5 s u b a . 1 8 4 . a 1 6 . n. . 5 Vi lfa Tr i ni a na Steud . Sy Gr m (Type from Briti h Col m i )

- i l a . 2 1 23 1 9 1 1 s M d . N t : . . S oro bo lus cr tandru s va ina tus L u ne ll Am . p yp g , (Type from Ben on

u a a . Co nty , North D kot )

A a . 2 2 1 7 9 . 1 92 1 . t ndru va nvolul us a . . : o b lu s cr a s r . i Sp ro o yp F rwell , Rep Mich c d (Type from Roch

s a . e ter , Michig n )

n a ul s usua s a u s o r s a s s s a a us Pere ni l ; c m lly in m l l t ft , erect pre ding , ometime pro tr te , gl bro , — 0 1 0 a a s a u s u s o n a - s a t a o r 3 0 . s cm t ll ; he th gl bro , p be cent the m r gin , long pilo e the thro t , more

ﬂat ss s a a ss a u a u . s a a s le pilo e i n line cro the coll r ; l ig le bo t mm long , den el y cili te ; bl de , more o r ss u and usua u at a u a s a us o n a le invol te in dr yin g lly invol te the tten te tip , c bro th e m rgin ,

— nd a a u ua u at a s o r a 2 5 . a s a a s r ther hort elong te , mm wide ; p nicle termin l xill r y , ll y incl ded the

as s s u a s a s u as 2 5 . b e , ometime entirely incl ded , the well developed termin l one open , m ch cm

a s a u s b a s a s a t a o r s s r eﬂexe d a d at long , the xi gl bro , the r nche r ther di t n , Spre ding ometime , n ke

u a o n s as a s u as 8 . o r s s a b e , m ch cm long even more , the pikelet crowded long the pper p rt hor t 2 on a ss a s s s a o r u us . a us s u e ppre ed br nchlet ; pikelet p le pl mbeo , mm long , gl bro ; ﬁr t gl me a u nd a a as s a u as as a a a . third to h lf long , the econd bo t long the c te lemm p le

A : a a a a a m TYPE L OC L ITY C n di n River [Tex as or Okl hom ] (Ja es) . : Sa u a and a A b a and as and s u DISTRIBUTION ndy Open gro nd , M ine Ont rio to l ert W hington , o th

a a a a a L u s a a A a and . w rd to North C rolin , Indi n , o i i n , rizon , northern Mexico

8 I A . A . A r . A ro t. 1 7 : . 5 6 H . a i . . 4 I L L USTR TIONS : B u ll . U S . Dep . g g s f 4 ; itchc M r f

42 l N e alle i n . e . 1 : 5 7 . . s a N at se . U . . Sporobo u y V y , Co tr S H rb

1 890 .

a s a ndrus u as a us s s o f S. cr ta b t s Perenni l , re embling dw rf pecimen yp the b e loo el y rhizom to ; — u - s s 1 5 40 . a a s s u s u a s a s ss c lm lender , erect , cm t ll ; bl de lender , i nvol te , q rro e Spre ding , mo tly le — a 5 . a O 3 a s a 8 . s s s s th n cm lon g ; p nicle delic te , pen , cm long , ometime inclo ed in the he th , the

a s and a s s tandrus s a s s ss a S. cr . br nche br nchlet mo tl y , pre din g ; pikelet le crowded th n i n yp

L A L : a s Sa a a s N e lle a . TYPE OC ITY Br zo nti go , Tex ( y)

: su s a s s as a nd . DISTRIBUTION Gyp m nd , we tern Tex New Mexico L L A : u . A A . S . . r . ro s t 62 H a . 1 . 4 . . 8 4 C I USTR TIONS B ll U Dep g g . ; itchc M n j

P 1 0 7 . HI PP SIA in. Tr R . . elv . 2 7 . 1 23 . ( ) Br Chlor . M 8

C ol od iu m P hi si a r . u ntd c k 2 3 7 e . : 2 8 1 . E . 1 s n T bas p s . m ona drum . pp T in Ne e (Type pecie , C rin , ed A ro t a l d on g s i s gi a Phipps . )

A a u a a - ﬂowered a s s dw rf , t fted perenni l , with n rrow , few p nicle of m all spikelets . Spike

s l - ﬂo we red sa u a ab u s a a not u s u ua let , di rtic l ting ove the gl me , the r chill prol onged ; gl me neq l ,

u s s s a a s a 3 - a u al a a min te , the ﬁr t ometime w nting ; lemm thi n , omewh t keeled , nerved , c te ; p e s a a a . little horter th n the lemm , dent te T s s A osti s al ida s . ype pecie , gr g Phipp

498 NORTH A M ERI CA N FLORA [VOL UME 1 7

4 4 : 34 . 1 5 l . R . 3 in e e . F ss 8 . RO STIS Gr iseb . 1 0 9 . ARCTAG L d b o

n al s s ass s s ﬂa t a s and a Peren i , erect ce pito e gr e with creeping rhizome , bl de , contr cted or

O s l - ﬂowered sa u a a u s a a no t or pen p anicles . Spikelet , di rtic l ting bove the gl me , the r chill ( u s 2 su ua a u s b a a us a a ra rel y slightly) prolonged ; gl me , beq l , c ti h , mem r n ceo ; lemm little longer

u sa u 5 - a a s s s s u th a n the glumes and of abo t the me text re , nerved (the l ter l nerve ometime ob c re) ,

- as as a 2 s a a . awnl ess ; p alea abou t long the lemm , nerved , the nerve pproxim te

T s s s Col odi um l ati oli um . B r . ype pecie , p f R

Fl . 4 i b . in e e . . R ss : Arcta rosti s l a if lia R . . G r se 1 . g t o ( Br ) L d b o

1 5 3 . 434 . 8

l v 1 2 . M e . 2 8 . 8 3 m . . C olpodi um la l ifoli u R . Br Chlor

bu S u A as a . i 1 1 824 . n ﬂ . 5 7 . a . U ru n na cea . Vi lfa a di Trin Gr m (Type from Kotze e o nd , l k )

Vi a r u nd n c . 1 830 . as l a a ea robolus a ru ndznaceus u R év . a . Su . i . Spo K nth , Gr m ppl xvi (B ed on f i Trin ) a s Vi l r u nd n 2 23 . 1 839 . a a a cea . Am . 8 um H . . . C olpodi u m ar u ndina ce ook . Fl Bor (B ed on f i Trin ) 2 3 4 . 0 6 1 . 1 8 0 . s n M m A a t. Péter sb . : e . . S Vi lfa xer am pelina Tn . c d VI (Type from Briti h North

A merica . ) l odi um l t ol u m 1 45 . as o a 2 : 66 . 8 C B e itr . P ﬂ . u ss . . Cinna B rowni i Ru pr . R Reich (B ed on p if i

R . Br . ) -4 l 43 5 . 1 85 3 . as Vi a . ss . : ( a n n e i b b . t ol a v r aru d a c a G r se . A rctagrosli s l a if i . i in L ede Fl Ro B ed on f

aru nd ina cea Trin . ) l ru nd n 1 7 1 896 . as Vi a a acea . Am . 2 : 3 . r l r sl i s arund nacea a ass s . A c ag o i Be l , Gr e N (B ed on f i Trin )

2 1 1 . 1 90 1 a s u 5 . r ta rosti s an ust ol a as u . . . . a . : A c g g if i N h , B ll N Y Bot G rd (Type from D w on , Y kon rr W ll am s Te itory , i i in 1 1 a 2 1 5 1 . 90 . s u l u . . . a . : rcta rosti s m a cro h l a as . A g p y N h , B ll N Y Bot G rd (Type from D w on , Y kon r W ll a m s Territo y , i i in 2 1 0 1 a 2 : 1 5 . 9 . s u A r cl a rostis oa eoi des as u . . . . a . g p N h , B ll N Y Bot G rd (Type from D w on , Y kon r W ll am s Territo y , i i in — Cul s a us 5 0 1 5 0 . a o r s s a s a s a u s s s m gl bro , cm t ll , ometime dw rf ; he th gl bro , mo tl y horter — a es u s a u 5 1 0 . o r s on th n the internod , the ppermo t elong te ; lig le thin , mm long, horter the

a s a s s a us a as u as 1 . a a w and innov tion ; bl de c bro , elong te , m ch cm wide ; p nicle from n rro open — b a to a and u l s k 1 0 30 . a s s a us s contr cted interr pted y pikeli e , cm long , the xi c bro , the r nche bu s s s i a s s to s a s es as u as 1 0 cm . t ppre ed pre ding , ometim m ch long , with ome hort one nter — l us . u es a us s 3 4 . a a us or s a u mixed ; gl m gl bro , mo tly mm long ; lemm gl bro c ber o

TYPE L OC A L ITY : A rctic British A merica . R : a s s and u as u a A a a A as a DIST IBUTION M r he t ndr , circ mpol r , in North meric from Greenl nd to l k , and southwa rd to L abra dor a nd the u pper Yu kon b as in . 7 A A t 47 4 4 5 . L L A : u . . S . . r . ro s . I USTR TIONS B ll U Dep g g ,

1 1 . I. L G R . . P 8 . 7 5 3 1 1 0 . A U US L sp

l - ﬂowered A n a ua as s a s o r O a s . S s nn l gr , with p le , den e , ovoid blong woolly he d pikelet , the

a a sa u a a u s s u ﬂ oret u a a as r chill di rtic l ting bove the gl me , pilo e nder the , prod ced beyond the p le a s u s ua l - us a u a ta a u s aristiform bri tle ; gl me eq l , thin , nerved , villo , gr d ll y pering into pl mo e

a s a u s a us b a o n ba a a point ; lemm horter th n the gl me , thin , gl bro , e ring the ck bove the middle s s s a ul a sa awn su biﬁd s s a lender , ex erted , omewh t genic te , dor l , the mmit , the divi ion delic tely

wn- a a a a s m u a s . tipped ; p le n rrow , thin , the two keel ending in in te wn L a urus ova tus T s s . ype pecie , g L

L I 1 . 1 3 . a s a s . . P . 8 7 5 1 . guru ov tu L Sp

u s s a at as u s or s s a a us a 1 0—3 0 C lm lender , br nching b e , p be cent , ometime ne rly gl bro bove , — . a s a s u s s a a u u u s s 2 3 . cm t ll ; he th p be cent , omewh t inﬂ ted ; lig le thin , ro nded , p be cent , ero e , mm b a l x ﬂat a u s s ss a 1 0 . as u u sua s as 1 . lon g ; l de , , p be cent , mo tl y le th n cm long , m ch cm wide , lly — ss a a s a a s 2 3 . a a s u s le ; p nicle p le , down y , bri tling with d rk wn , cm long , ne rl y thick ; gl me very 1 a . a 3 . s awn u u s . n rrow , cm long ; lemm mm long , pilo e below , the m ch exceeding the gl me

A : u TYPE L OC L ITY So thern E urope . R : u a a and s a s a a a a San DIST IBUTION C ltiv ted for orn ment p ringly e c ped , C liforni (P ciﬁc Grove , a s ba a a a as u a a . Fr nci co , Berkeley) ; ll t , Be fort , North C rolin ; Mediterr ne n region L L T A : u . . A r . 7 7 2 : . 7 9 H . a . . 7 3 1 . I US R TIONS B ll U . S Dep . g f ; itchc M n j A R T 7 1 93 7 AC A 499 P , ] PO E E

1 . . . 1 1 PHLE M PI. 5 9 1 7 5 3 . . U L Sp

1 as hl m a F . hu s A a m . P 1 . 2 : 3 1 60 7 . 7 63 eu . Sl ele ro s . L p d n , (B ed on P ) n 4 8 1 as hleu F 1 1 . P re . : 26 . 90 . m P lantini a uba . L B ni , y (B ed on P )

A ua s o r a s u s ﬂa t a s a nd s a s . S nn l perenni l , with erect c lm , bl de , den e , cylindric p nicle pike

s l - ﬂo we red a a ss sa u a ab u s u s ua let , l ter ll y compre ed , di rtic l ting ove the gl me ; gl me eq l , mem branac eous a u u a o r a a s a u s a , keeled , br ptl y m cron te wned ; lemm horter th n the gl me , h y line ,

— - a u a 3 5 a a a a as a s a . bro dly tr nc te , nerved ; p le n rrow , ne rl y long the lemm

T s s P hleum ratense L . ype pecie , p

a Plants perenni l .

a s s a s as as . P nicle cylindric , ever l time long wide b a a as an s s . P icle ovoid or O long , not more th n twice long wide a Plants a nnu l .

Glumes strongly cili a te on the keels .

a u . Glumes glabrous or s c berulo s , Glumes widening upward to a swollen s ummit

u s ss th e a u s s a a i . Gl me compre ed , c ti h tip ppro ch ng

l I . 1 3 . Ph e m a ense . . P . 5 9 7 5 1 . u pr t L Sp

- l n A a s . A 23 . 82 1 . as h eum ral e se . h m nodo um a r ratense t. 1 l u v S . P e s . L p m n , Fl gen (B ed on P p ) n 4 1 hl m r t n P e . 2 7 0 . 1 90 . as eu a e se H u . P lantini a ratens s uba . r : s p i B ni , Fl y (B ed on P p d [error for ll i l a 4 9 hl um t hur r tens une Am . M d . N t 2 1 6 . 1 1 5 . as P e ra ense . Stele os a s . : L p p i L , (B ed on p )

u s u a s o r u as a us or s u 5 0 C lm t fted , erect from wollen b lblike b e , gl bro lightl y ro ghened ,

— ﬂa u i l a s a us o r a so u 2 4 . a s t a a s a us 1 00 . a s cm t l ; he th gl bro ne rly ; lig le mm long ; bl de , c m n te , c bro , — a s 5 8 . a s s s a u u elon g te , mo tly mm wide ; p nicle pikelike , cylindric , erect , den e , br ptly ro nded — i at s 5 1 0 . s s s s s a both end , commonl y cm long , ometime longer , the p kelet crowded , pre ding ;

- w a wn 1 . n u s a u . u a s u a a a o gl me bo t mm long , tr nc te , ith to t mm long , pectin te cili te the

s a a a u 2 . . keel ; lemm delic te , bo t mm long

TYPE L OCA L ITY : E u rope . DISTRIBUTION : Commonly es caped from cu ltiva tion a long road sides a nd in ﬁeld s a nd was te

a s u u S a s E u a s a . u a a s a a ass . pl ce thro gho t the United t te ; r i Commonly c ltiv ted me dow gr , Timothy 2 A 2 l 1 . 7 7 H M a n. 8 us u . 7 4 . 7 A : . . . 7 : . . S . LL S r . I USTR TIONS B ll U Dep g p ; f ; itchc f ; ilve , Tex Gras s es 23 1 .

2 . Phl l i PI. 5 9 . 1 7 5 3 . eum a p num L . Sp .

m nk n H a nk . 1 24 1 0 . a a l u H ae ea u m . 83 u u P h e s e : 5 . S Pre l , Rel (Type from Nootk o nd , V nco ver a nk s H a e e . I l nd , ) t n a l nu m a P ro d r . . . 3 . 1 7 P . l num . P hleum ra e se v r . a . 6 as a p p i Cel k Fl Bohm 8 8 . (B ed on pi L ) v m er n hleum a l num ar . a ca um u . . a 0 1 88 a u P . . 9 . 6 . S p i i Fo rn Mex Pl Gr m (Type from Nootk o nd , nk a u s a H ae e . V nco ver I l nd , ) n a n n am m l i Scri b eri a um P e . a A a . c . 23 8 . 1 899 . hleum al um v r . S 7 : P p i , Proc D venport c d (Type from a u a i P am m el Ger ni m P rk , Wyom ng ,

P l n 1 n 4 2 1 1 a hleu m l nu m . P re . : 7 2 . 90 . s a a tini a al na uba F . L pi B ni , y (B ed on P pi )

— C u s 2 0 5 0 . al a u s a s u as lm cm t l , erect from dec mbent omewh t creeping den el y t fted b e ; — ﬂa t a us s l ss a 1 . s a s a us u 2 3 . a s s 0 he th gl bro ; lig le mm long ; bl de , c bro , mo t y le th n cm long , — — 4 m . u . 6 . w a s o r s 1 3 c s a u 5 s mm ide ; p nicle ovoid oblong , bri tl y , long ; gl me bo t mm long , hi pid

l . a on a s 2 . a a u 2 . ci i te the keel , the wn mm long ; lemm bo t mm long

A : u TYPE L OC L ITY E rop e . T : u a a s h o s a nd a s a A as a DISTRIBU ION Common in mo nt in me dow , in g , wet pl ce , Greenl nd to l k , and sou thwa rd in the mou nta ins O f M a ine and New H ampshire ; northern Michiga n ; in the mou nta ins s S a s a nd a a a s s a as a t a a a of the We tern t te to New Mexico C liforni ; l o on the e co t Fort Br gg C liforni , a nd a u a n a northw rd ; E rasi a d rctic and a lpine regions of the sou thern hemis phere . 2 B A A A ro t. 1 : . 45 1 H . M an. . 7 8 . LL : u . . . . r s 7 I USTR TIONS B ll U S Dep g . g f ; itchc f

Phle m i I . 3 . 3 . 1 P . 0 7 5 u ar enar um L . Sp . 6

A ua u s an a nd or u a at a s a us s u s nn l ; c lm br ched erect genic l te b e , gl bro , lender , Often p rpli h

- a 3 3 0 . a s a s a us u o r ss a u a u s as u as bove , cm t ll ; he th gl bro , the pper more le inﬂ ted ; lig le c ti h , m ch — 3 . a . n u s 3 as u as 4 . a u a s a us o mm long ; bl de cm long , m ch mm wide , c min te , c bro the pper su a r — r a u s s a o a a s 3 . 8 . a rf ce , the ppermo t m ll w nting ; p nicle cm long , mm wide , n rowed tow rd 5 00 NORTH AM ERI CA N FLORA [VOL UME 1 7

u s ab u 3 . s s a a a u o ne the tip ; gl me o t mm long , pointed the keel trongl y cili te ; lemm bo t third

- as as u s a ss u s . long the gl me , ppre ed p be cent

TYPE L OCA L ITY : Eu rope . a a nd A a : a as a a s u . DISTRIBUTION B ll t ne r Portl nd , Oregon ; co t of E rope North fric

l . n l 2 1 2 F . 3 . 7 Phl e m anic l a m s . 6 4 . u p u tu Hud A g

4 4 1 7 86 u . O bs . : 1 . . P ha lar i s a spera Retz . (Type from E rope )

1 : 1 1 0 . 1 7 8 6 . u . P hleum asperu m J a cq . Coll . Bot . (Type from E rope ) 1 1 n 4 a 7 . 87 3 F . P re . 2 9 1 P lanti ni a a s era uba N u o v . G io rn. . . 5 : 3 1 : 6 . 190 . p B ni , ( Bot It l , hyponym ) y

(B ased on P hleum a sper um J a cq . )

— — A u a u s us a a us 1 0 40 . a s a s a us or s nn l ; c lm erect , b h y br nched , gl bro , cm t ll ; he th gl bro ome

a u u o r ss a u u a as u as 3 . a es wh t ro ghened , the pper more le inﬂ ted ; lig le tr nc te , m ch mm long ; bl d — — ff 4 1 0 . a s s s a a s a us ﬂat 2 1 0 . at c bro , , cm long , mm wide ; p nicle ti , cylindric , omewh t n rrowed

— — - 6 . s s s a o r a a u 2 . 2 8 . 3 O tip , cm long , mm wide ; pikelet wedge h ped bcord te , bo t mm long ;

s ab u s or a u a — u a u a a s a glume gl ro ﬁnel y gr n l te ro ghened , n rrowed below , ro nded bove with h rp

m . a a a u s a u . h rd tip ; lemm c ti h , bo t m long

A a TYPE L OC L ITY : E ngl nd .

: a as a a i a a i . DISTRIBUTION B ll t , ne r Portl nd , Oregon ; Med terr ne n reg on

1 :

n. n. i l l l i sc h . ae M tte eur . Fl . 2 5 . Ph eum subu atum (S av ) A Gr b Sy

1 5 4 . 1 8 99 .

1 4 . 1 5 5 . . P halaris bulbosa L . Cent . Pl . : 7 (Type from Oriente

P hala u bul ta a P i l 5 7 1 7 98 . s s a S . s . : . ri vi , Fl h : 4 1 5 1 P a lar s B ellar i a u u . 3 . 80 1 . d t. G e s . N S u . i Willd . Fre nde Berlin Ne e ehr (Type from E rope )

P ha l a s tenn H a A 2 2 1 802 . u . s tr : 7 . i s . us E ri o t , Gr m . (Type from rope )

h l nu i s H . hleum l enue a 1 1 1 1 806 . as P a ar s l e s . : 9 . P Schr d Fl . Germ . (B ed on i o t ) l h l r s ll ar P h eum B ella r u . l : 85 . 1 809 . as P a a B e di . di Willd . E n m (B ed on i Willd ) h l leum bulb u m l . 1 8 0 as P h alar s bu bosa . P 7 9 . l ur . : 3 P h eum os K . Richt . Pl . E (B ed on i L ) Not bulbo zi m a s u 1 7 65 . Go n ,

- — A ua u s usua u us us a to s a 1 0 2 0 . a nn l ; c lm lly n mero , b hy br nched , erect pro tr te , cm t ll ;

s a s ab us o r s a u us u a u as u as 5 . he th gl ro c ber lo , the pper Often inﬂ ted ; lig le pointed , m ch mm — b - a s ab us a so a a ua s a 3 6 . a s long ; l de gl ro or ne rly , n rrow , gr d ll y h rp pointed , cm long ; p nicle — — a 2 . 3 4 5 . s s ss u s 8 . n rrowly cylindric , cm long , mm wide ; pikelet comp re ed , mm long ; gl me

- s 3 a us a u a s a a as as u s . trongl y nerved , gl bro , c te ; lemm c rcel y h lf long the gl me

A : a TYPE L OC L ITY It ly .

: a as a a a a nd a a a a . DISTRIBUTION B ll t , ne r Phil delphi , ne r Portl nd , Oregon ; Mediterr ne n region

I 2 1 1 1 2 I . GASTR D M B e auv . A ro st. 8 . 1 1 2 . U g

“ k - A ua ass s ﬂa t a s and a s s ikeli a s . S s l ﬂowered nn l gr e , with bl de p le , hining , p e p nicle pi elet ,

a a sa u a a u s b a a a s a u s the r chill di rtic l ting bove the gl me , prolonged ehind the p le min te bri tle ;

u s u ua s a a or s at as a u s a gl me neq l , omewh t e nl rged wollen the b e ; lemm m ch horter th n th e u b u a s a a u a a o r a ss a a a s as a . gl me , h y line , bro d , tr nc te , wned wnle ; p le o t long the lemm

i ili le i er T e s s M um nd um . ) p pec e , g L

G astridiu i n c hinz Th ll 1 . m ie . ventr co sum (Gou a ) S e . V rt ' 1 Z rieh : 3 9 . 9 1 3 . N a t. G es . ii 5 8

A ro st s ventr co a a H n 3 1 b s u . M o s . 9 . 7 62 . u s a a g i i Go n , ort p P li hed e rlier th n the next . M l um lendi e ru m . . P 1 9 1 S . . 1 7 62 . u . i i g L p ed 2 . . S (Type from E rope ) A ros t s a us tra l a t 7 67 . u a s . . . 1 g i i L M n 30 (Type from Port g l . ) A lo ecu r us ventr os u A . . 2 2 . 1 7 . a s A ro t v c s H u s . . l : 8 7 8 s s ent cosa ua . p i d Fl n gl ed . (B ed on g i ri Go n ) A ro t s l endi era s 3 : 2 1 9 . 1 7 90 . a s M l um l endi ru g i g Neck . Elem . (B ed on i i ge m L . ) A rena lendi er b 6 M a a 23 . 1 . as l um lendi eru m S s . P ro d r . 7 9 g li (B ed on i i g L . ) Gastr i di um a u tr 2 1 . s ale B e a uv . r 1 1 A o st. 64 1 8 2 2 u . g , (Type from E rope ) Gastr idi u m l endi u m A 48 1 8 1 8 er m . er bs . . n u O s . a s M l um le di g Desv . n ger (B ed on i i g L ) L a chna r l s - os i hl d . 43 i es 1 1 46 1 . eo 9 : u . 8 s s a A a A a . eO . a . S g p Nee Meyen ; Nee , Nov ct c d L p C rol ppl

a a a s . (Type from V lp r i o , Chile )

— u s as o r ss u a a t as a a us 2 0 40 C lm erect , cending , or more le genic l te b e , Often br nched , gl bro ,

. a a s a s a s u s s a a u us a a as u cm t ll ; foli ge c nt , the he th ro ghi h , omewh t inﬂ ted ; lig le obt e , l cer te , m ch A R T 7 1 93 7 A A 1 P , ] PO C E E 5 0

b us s u as 1 0 . a n 4 . a s 3 . a s s a a d a a mm long ; bl de c ro , m ch cm lon g mm wide ; p nicle n rrowed

b - a 5 8 . a . s s ab u u 1 s 5 . u s a ove , cm long , bo t cm thick ; pikelet lender , o t mm long ; gl me t pering

a s ab u 3 . s a u u s a i nto long point , the fir t o t mm long , the econd bo t one fo rth horter th n the flor wn t u u ub s a a 5 . s e s a ul a . fir t ; min te , pl mp , p e cent , the delic te mm long , omewh t genic te

TYPE L OCA L ITY : Fra nce . B : u a nd as a s a nd a a as DISTRI UTION O pen gro nd w te pl ce , common in Oregon C liforni ; Tex ; t a nd s as s a s u u A a . Bo on . M ; l o Chile ; introd ced ; E rope North fric 3 S . . A r . 7 7 2 : . 7 8 H . a . . 7 0 . I L L USTR A TIONS : B ull . U . Dep g f ; itchc M n j

1 1 GR n . F m . . 3 . L M O T a s a Pl 2 : 5 30 . 1 7 6 3 . CA A A S I S Ad

D x a A s 1 2 a . 43 . 1 8 . A undo m onta na a u . e eu i a Be uv . r o t y Cl rion ; g (Type , r G d ) af D éc 1 1 A m a r is R . P réc . . 2 7 . 8 4 . as alam a rost s A a g (B ed on C g i d ns . ) n - 4 H au s . 7 . 1 67 . as l m ro t A a s . A ther otus u a . 8 a a a s s D l c , Fl te Pyr (B ed on C g i d n )

a usua a a o r us ass s s a s s Perenni l , ll y moder tel y t ll rob t gr e , wi th m ll pikelet in open or usua a s s k a l - ﬂ w r d a a sa u a s s . S s o e e lly n rrow , ometime pikeli e p nicle pikelet , the r chill di rtic l ting a u s usua a a a s a s l a s bove the gl me , lly prolonged behind the p le hort , common y h iry bri tle ;

u s ab u ua a u o r a u a a s and usua a a gl me o t eq l , c te c min te ; lemm horter lly more delic te th n the

u s a us a a u o f a s s us and as as a a gl me , the c ll be rin g t ft h ir , the e often copio long the lemm , wned

a u sua awn a and s a s u and from th e b ck , lly below the middle , the being delic te tr ight , or to ter s and s s s a a s a a ex erted , bent ometime twi ted ; p le horter th n the lemm . r ndo Cal m rosti T s s A u a a s . ype pecie , g L

A n a u s u a w . longer th n the gl me , genic l te

a b a s s a a b . P nicle open , the r nche pre ding , n ked elow ntha a a s ub s t . . e a . Lemm r ther den ely p e cen . l C r i u ab u L emm a glabro s or sc ro s . — r 1 a . olande . a s s a 5 9 . a s a . . 2 . B Bl de c ttered , mm wide ; pl nt mo tly more th n m t ll C i

a s s bas a s a 2 . Bl de mo tly l , mo tly not more th n mm wide , often

involu te . l H wel . . a . o A wn abou t 7 mm lon g bove the bend . C ii

. a A w n 5 mm long or less bove the bend .

h m sioi de . fla a . desc a s a s t l ax . v Bl de , r ther C p ' u Bla des invol te . 1 — 0 B ewer a s a a s u a 5 1 0 . . . Bl de c pill ry , lc te , cm long C r i — — l en zs 2 l . 0 . to uc s . a s fi r m 0 30 . l . 5 . Bl de , cm long , mm thick C a a a th e b a s a ss as fl ori P nicle n rrow or comp ct , r nche ppre ed or cending , a fero us from b as e or with s hort br nches intermi xed . — Tweed i 7 . . a s fl a t s a 6 1 0 . . . Bl de , c ttered , mm wide C y

4 ﬂ a t u . a s a . Bl de not more th n mm wide , or invol te - wn a 1 . u s 1 . a ua a cum i a a Gl me cm long , gr d lly long n te ; ne rly cm

l osa . ab b 8 . . o long ove the end . C f i m awn u s a 8 . a u a u a Gl me not more th n mm long , c te or c in te ;

ab b . u sua lly less th a n 5 mm . long ove the end

Blades involute . len i m a s s . . u te 9 . a a s a l s s . P nicle den e , mo t pikelike C g

nter m ed a . 1 0 . Panicle n a rrow but not s pikelike . . C i i

a s ﬂa t s s u a . Bl de , ometime invol te tow rd tip

u u as cens . 1 1 . . a s ss s . P nicle den e , more or le pikelike C p rp r l ax a a bu t s a . P nicle n rrow not pikelike , r ther

2 P tt e i . a s s bas a 1 . . i Bl de mo tly l . C i r m Blades s ca ttered along the cu l .

- — P r n le . 1 3 . . b a s 1 2 . . Callus hairs 1 mm . long ; l de mm wide C i g i

- — 4 L eona d . 1 . . b a s 2 5 . . Callus hairs 2 mm . lon g ; l de mm wide C r i “ A wn u s a a u s s t a u a incl ded or c rcely longer th n the gl me , r ight or genic l te , s m s a o etime w nting .

A w n a s a b a s u . w nting or very hort ; p nicle open ; l de invol te , erect a s s ss ﬂ exuo us u ab us a u s - ai s Bl de very lender , more or le ; c lm gl ro ; c ll h r

s 1 5 . . ori z a bae . very hort . C

- i oli a . a m ab us a u s a s 1 . . 1 6 . . erect s 1 . u s Bl de rig id , mm thick ; c l c ro ; c ll h ir mm long C f

A wn present . A wn u a u i s s u s a us - a s genic l te , protr d ng idewi e from the gl me ; c ll h ir

a s a s s a m a . r ther p r e , horter th n the le m a s a s u a s u s ua ess a Bl de n rrow , oon invol te ; pl nt low , lly l th n a 30 . ta u a us a cm ll , not t fted , rhizom to ; p nicle comp ct ,

nl a nens is . 1 7 . m o s pikelike . . C

a s ﬂ at d u a t a s usu a a . Bl de , rying invol te tip ; pl nt lly t ll

Shea ths pubes cent on the collar . Ca llus - h a irs abou t one third as long as lemm a ; wes tern n bes ce s . 1 8 . u s . specie . C r C allus - h a irs h a lf to three fourth s as long as lemm a ; eas tern

s pecies . 502 NORTH AM ERI CA N FLORA [VOL UME 1 7

’

m a . t P or erz . Palea abou t as long as the le m C .

u a s as a . . er lexa Pa lea three fo rths long the lemm C p p . a Shea ths glabrou s on the coll r .

a s b a s s a as . P nicle loo e , the r nche pre ding or cending — 1 - 2 b a s . . a s s 3 0 40 . a Pl nt lender , cm t ll ; l de mm wide 1 a b a s as u as . . Pla nts 1 m . t ll ; l de m ch cm wide

Pa nicle compact .

u s a 1 . a . Cu lms sto t , mo tly more th n m t ll

u s s s ss a 1 . a . C lm more lender , mo tly le th n m t ll

Spikelets 5 mm . long . a Lemma as long as the gl um es ; p nicle spikelike . L emm a shorter tha n the glumes ; panicles nar

row but not spikelike .

Spikelets 4 mm . long . nd la ctea i eios a . u n r a s a b . e A w st ight ( omewh t ent in C p g C ) , incl ded ;

- callus ha irs usu ally not mu ch shorter tha n the lemma .

i nex ansa var . Shea ths p ubes cent on th e colla r (s e e a ls o C . p bn i . Scri er bar bulata) . C

She aths glabrous on the collar . n Pani cle ra ther loose a d open . al us - a s u s ab u as as a awn C l h ir copio , o t long the lemm ;

l a s a . de ic te , tr ight a us - a s a s a ab u a as as a C ll h ir r ther c nt , o t h lf long the lemm ;

a wn s a u a . tronger , we kly genic l te

Panicle more or less contracted . h a A wn a ttached abou t the m iddle of t e lemm .

a s ﬂ a t a l ax . Bl de , r ther cinnoi des Glu mes s cabrous ; plant green . C .

a a . sco ulorum . Glum es nea rly smooth ; pl nt p le . C p

a s u ﬂ a t and b u . Bl de invol te or . if . rigid ecoming invol te

a s a s s ab u s . Bl de elong te , mooth or c ro — a s s ab us a u 4 6 Bl de ﬁrm , c ro , r ther rigid ; lig le

m m a ﬁrm . . long ; p nicle — a s a l a x a u 1 3 . Bl de r ther , n rrow ; lig le mm long ;

pa ni cle r a ther soft .

a s b a a nd s as u as 5 . Bl de ro d hort , m ch mm wide ,

nea rly smooth .

A wn a a a b as a a . tt ched ne r the e , the r chill not prolonged

1 4 . 1 n m 1 90 . 85 al am a s i h e . . a . . C gro t s eriant a St u d Sy Gr

' D e euxza r nth e a a H . E . 1 K . . 1 1 45 . 1 8 5 . S . : y i Nov Gen . p

D euxi h e aba . e a Sc i dean 1 86 . u a u a . 1 05 . 8 y Ste d . ; Four n . Mex . Pl . Gr m (Type from Mo nt Oriz )

— Cu s a s u s s s a ul us a 30 60 . a lm in l rge den e t ft , erect , lender , c ber o below the p nicle , cm t ll ; b s a s a us a u a a as as o f a a u 4 . he th gl ro , p le ; lig le n rrow , p rtl y cl ped by the b e the bl de , bo t mm long ; b a s s u s a u s a as as ul s a l de lender , invol te , c bro , erect , often ne rly long the c m ; p nicle open , a a — h l us a s u a to w 8 1 2 . t a s s a u pyr mid l , nodding, p rple , f ding bro n , cm long , e xi c ber o , the br nche — a a s a us ﬁ exuous s a u s o f 2 o r 3 2 3 . a a a c pill ry , c bro , , pre ding , i n gro p , cm p rt , n ked below , few ﬂowered a u s a a ua o r us a s — a o n or ss bove ; gl me n rrow , tten te c pid te , pilo e cili te the keel , more le s a ul us on — a a s and internerves 6 7 . a a s a c ber o the l ter l nerve , mm long ; lemm little horter th n the — u s a - - wn a a us s a ess s 4 5 6 . a gl me , r ther den ely ppr ed pilo e , toothed , mm long , the tt ched j t below — l u a s - 4 s a su 2 . a the midd e , genic l te , hort pilo e except ne r the mmit , mm long bove the bend ;

a us- - a s s a a a u a f as as m a s s . c ll h ir hort ; r chill bo t h l long the lem , hort pilo e

L A L : u a TYPE OC ITY Mo nt in s between Mexico City a nd Texc u c o . : S u a a i s u b , DISTRIBUTION o thern Mex co , mo tly in the vicinity of Mo nt Oriz

2 l ‘ . a am a is B l li s T . ts Bo t. a f. 2 an e i h e in . Wa C gro t o d r urb r , S C 2 8 0 . 1 8 80 .

D e euxi a Bol ander i as s 28 . 1 883 as s . . l r S . as a a m a ost s Bola nderi u b . y V ey , Gr e U (B ed on C g i Th r )

C u s ab us s — u 5 . s l l . a s lm erect , gl ro or lightly ro gh below the node , m t ll , with lender rhi z om es s a s s s ab us u 4— s a us 5 . a s ﬁ at s o f u ; he th lightly c ro ; lig le c bro , mm long ; bl de , tho e the c lm s a — — a s 5 9 . . a a a 1 0 2 0 . c ttered , ne rl y mooth , cm long , mm wide ; p nicle open , p yr mid l , cm

a s a b us a so a s a a s a us long , the xi gl ro or ne rly below , the br nche verticill te , spre ding , c bro ,

a - — — 5 1 0 . s s 2 5 . a u 4 . n ked below , the lon ger cm long , the verticil mo tl y cm p ar t ; gl mes 3 mm

g , u s ab us a u a s a us a u as a s u es awn lon p rple , c ro , c te ; lemm very c bro , bo t lon g the gl m , the

a as u a - s a u 2 . a a us a s from ne r the b e , genic l te , ex erted , bo t mm long bove the bend , the c ll h ir s a a 1— s 2 . hort ; r chill pilo e , mm lon g . A RT 7 1 937 AC A P , ] PO E E 5 03

CA T : u a a Bola nder 647 1 a L L . TYPE O I Y Mendocino Co nty , C liforni ( , in p rt) T O : s and s u a s s a as a nd DISTRIBU I N Bog moi t gro nd , pr irie or open wood , ne r the co t , Mendocino

H u b u i s a i a . m oldt co nt e , C l forni

A A ro t 7 . 1 47 H n De . r . s . z . M a 09 T A : u . . 6 S . . . I LL US R TIONS B ll U . p g g f ; itchc f

i w llu . 2 6 : 1 . 1 alam a s s H o e ase az . 7 3 . G 8 8 1 . C gro t V y , B ot

' 1 88 uxi a H owellzi a s as s s . S . 28 . 3 . as ala m a ost s H owell i D e e as . y V ey , Gr e U (B ed on C gr i i V ey )

s 30—60 u s s u a s a a us . a s a C lm den ely t fted , r ther lender , cending , gl bro , cm t ll ; he th s smooth

- s a us u s a us 2 8 . a s s s a us o n o r slightl y c bro ; lig le c bro , mm long ; bl de lender , c bro the upper

u a ﬂat or s u s a a a u as as ul s a u 1 s rf ce , oon invol te , e peci ll y tow rd the tip , bo t long the c m , bo t mm . — au s a a a a 5 1 5 . w a s wide , the two c line horter ; p nicle pyr mid l , r ther open , cm long , the lo er br nche — s a s a 3 5 . s s a o r w u i n whorl , cending , n ked below , cm long ; pikelet p le tinged ith p rple ; gl umes — a u a 6 7 . a a u a a s a u s awn a a c min te , mm long ; lemm c min te , little horter th n the gl me , the tt ched

l a s - a u 2 . a as u a u 1 . a us a s and a s of bo t mm bove the b e , genic te , ex erted bo t cm ; c ll h ir h ir the

a a s as a r achill a about h lf long the lemm .

well TYPE L OCA L ITY : Oregon (H o ) . ' : u a c liﬂ s G a u b a DISTRIBUTION On perpendic l r , vicinity of the p of the Col m i River .

A . A r . ost. : . 1 48 H M a u . . . n r 7 . 61 0 . A O : . I LL USTR TI NS B ll U S Dep g g f ; itchc f.

is de s h am sioide s T in. 4 alam a s c I c . . . 1 l 83 6 . . C gro t p r p 354 ~ d . u . r 1 0 1 883 . D eyeuxi a desch am psi oi es Scribn B ll To rey Club : 8 . (B as ed on Calam agrostis des

cham psioides Trin . ) m acra ntha ib h m i de var . 8: . . c a s oi s S . 1 at. H b . 3 Calam agrosti s des p Piper ; cr n Merr Contr U . 8 . N er : A as a 1 9 1 0 . a s a . 5 9 . (Type from Kodi k I l nd , l k )

an as as s u o r s a a u 1 — l Cu s s 5 40 . a lm erect from cendin g b e , loo ely t fted olit ry , gl bro , cm t l , — w s z s s a s a us u 2 3 . a s ﬂat a l ax ith lender creeping rhi ome ; he th gl bro ; lig le mm long ; bl de , r ther , — — a u u 3 7 . 1 not u us a t as s s s a s 4 . n mero b e , mooth except the c ber lo m rgin , cm long , mm wide ; “ — a a 4 8 . a s a us a s a w p anicle pyr mid l , open , cm lon g , the xi gl bro , the br nche verticill te , the lo er

a a a a us a w s a ﬂexuous - ﬂowered u es a u spre ding , c pill r y , gl bro , n ked belo , omewh t , few ; gl m c mi — a us u s s l 4 6 m m . a a u as as lu s awn nate , gl bro , p rpli h , mo t y lon g ; lemm bo t long the g me , the

1 - - a a a u usua a 2 . a us a s a u a as tt ched bo t the middle , ll y exceeding the lemm mm , the c ll h ir bo t h lf

a a a s a s a s s 1 . . long as the lemm ; r chill lender , r ther p r el y p ilo e , mm lon g

TYPE L OCA L ITY : K amch atk a . B : s and a s a s A as a a as a u DISTRI UTION Bog m r hy pl ce , l k , ne r the co t , from Prince Willi m So nd to a s a a s a a a Port Clarence a nd the Bering Se i l nd s ; l o K mch tk .

5 4 . I c l . 3 I L L USTR A TI ON : Trin . . p O a m a cranth a ff s a u s as u as 7 N TE : The v riety di er only in h ving gl me m ch mm . long .

B w i e e Th e in . . 5 . al am a s i s a s . al i . C gro t r r urb r , S W t B ot C f 2 1 2 80 . 880 .

2 . 1 8 3 . a . 8 8 s alam a rosti s B ewe u D uxi a Brewer i as as s s . S r r b . eye V ey , Gr e U (B ed on C g i Th r er ) ' A A . . t 1 1 1 a u . S . r . ro s . . l m a rost s L em m om : 6 1 898 . Ca a g i Ke rney , B ll U Dep g g (Type from a a C liforni . )

o r a s filiform - ne C u s s u s a us 1 5 30 . a o lm den el y t fted , lender lmo t , erect , gl bro , cm t ll , node e a a as s a s a us o r a s a us ul b low the middle , nother ne r the b e ; he th gl bro the lower f intly c bro ; lig e — - f asa a s s a s at as u a u a 3 5 . o us usu of c lm le f mm lon g , b l le ve horter ; bl de b e n mero , erect , lly — - flexuous or filifor m s a ss s a us 5 1 0 . u i nvolute , often omewh t , more le c bro , cm long, the c lm — a s a a u 3 8 . a s a us a s bl de horter ; p nicle ov te , p rple , open , cm long , the xi gl bro , the lower br nche

- — a s a a a us few ﬂowered 1 2 . u s s a u capill ry , pre ding , n ked below , gl bro , , cm long ; gl me mooth , c te ,

— a us a - a as as u s awn a 3 4 mm . long ; lemm c pid te toothed , ne rly long the gl me , the from ne r the

- as u a s w s a u 2 . a a us a s b e , genic l te , ex erted , t i ted below , bo t mm long bove the bend , the c ll h ir — s a a a s a u a as as a . short , c nt ; r chill long p ilo e , bo t h lf long the lemm

M O A : a s ass a a Br ewer E L C L ITY C r on P , C liforni (

: u a a s S a a a a a . DISTRIBUTION Mo nt in me dow of the hi gh ierr Nev d , C liforni

A . A r t. 486 H M a n. 61 1 . . ro s . . I LL USTR A TIONS : B u ll . U . S Dept g g ; itchc f . 5 04 NORTH AM ERI CAN FL ORA [VOL UME 1 7

al am a s is tolucensis T in. e . N om . . 6 . C gro t r ; St ud B ot 4 1 25 1 . 1 8 0 . ed . 2 . :

1 5 1 1 43 . 1 8 . E . . . 8: S . : . K D eyeuxi a tolucensis H . Nov Gen p ’ 1 8 1 5 a i 1 1 43 . u . . S . : . T E . K . . D eyeuxi a juncijor m is H . Nov Gen p (Type from ol c , Mex co )

1 825 . i . 25 3 . n s . 1 : Ca lam agrosti s cusp ida ta Spre g . Sy t (Typ e from Mex co ) 2 1 840 D e euxz n 2 1 : 5 0 . . as a u ci orm is Ca la m agrostis junciform is Steud . Nom . Bot . ed . . (B ed on y j f

’

0 . 1 85 4 . u a i . t d l s n. a . 1 9 S e e uilr i om S u . S Cala m agrostis sesq fl te d y Gr m (Type from Tol c , Mex co u des cription of the s pikelet is erroneous ; the type h as been examined a nd fo und to ha ve a Si ngle “ ” fi oret with awned lemm a ; the la rge sprea ding p alea is obviou s ly the a wnless fl or e t referred l to by Ste ud e . ) — s s s a us 2 0 40 . a s a s s s u C ulms den ely ce pito e , erect , gl bro , cm t ll ; he th mooth , hiny ; lig le

u - u a a u 1 . a s s a a us o r s a us tr nc te , bo t mm long ; bl de ﬁrm , erect , invol te , h rp p ointed , gl bro c bro — u su a i us su a 2 0 30 . 1 mm . a on the o ter rf ce , v llo on the inner rf ce , cm long , thick ; p nicle ~ a s a l o 1 5 . s a s s a a us a pyra mid l , loo e , open , p le , cm long , the lender br nche pre ding , gl bro , n ked

— - ﬂowered a as u as 6 cm . u s a a a ua a w below , few bove , m ch long ; gl me l nceol te tten te , r ther ide ,

ab us s l s a us a a u 6 . a a u as gl ro except the keel , light y c bro tow rd the tip , bo t mm long ; lemm bo t

u s ub u a awn a a a u u a long as the gl me , p er lent tow rd the tip , the tt ched bo t the middle , genic l te ,

- u us a s a a u 5 . a us a s twi sted and hi spid lo below , the termin l egment horizont l , bo t mm long ; c ll h ir

- u one as as a a a . a s 1 2 . . abo t third long the lemm ; r chill mm long , the h ir mm lon g

L A L : a u a . TYPE OC ITY Ne r Tol c , Mexico : a a s i and ua a a DISTRIBUTION P r mo , Mex co G tem l ,

n i . i w i c i n. c ase o n . 7 . alam a s s T e ed C gro t y (S r b ) S r b ; V y , C tr 3 1 2 t. e . 3 : 8 . 8 9 U . N a . S H rb

b 1 0 : 64 . 1 883 . u . u D eyeuxi a Tweedyi Scribn . B ll Torrey Cl

— - a l w u s a s u a u 3 us l . 5 . a s s C lm erect , r ther to t , bo t noded , gl bro , m t ll , ith hort rhizome ; s a s a u s or u s a su us u he th gl bro ro ghi h tow rd the mmit , the lower becoming ﬁbro ; lig le thin , ' — — ﬁ a a a us au 5 1 5 . 4 7 . s i a s t s as u as 1 c m . w de mm long ; bl de , omewh t c bro , the c line cm long , m ch ,

s o f a s a w and a u s or ss tho e the innov tion n rro er longer ; p nicle oblong , erect , p rpli h , more le

s i u b a u 1 0 . a s a us a s s and p kelike , often interr pted elow , bo t cm long , the xi gl bro , the br nche hort — s a u us u s a u a u a a us 6 7 . a s a u us crowded , c ber lo ; gl me br ptly c min te , gl bro , mm long ; lemm c ber lo , a u as as u s awn l s u a s a u bo t long the gl me , the from below the midd e , twi ted , genic l te , ex erted bo t

- 5 . 1 . a us a s s a s a a a s 2 . mm , the c ll h ir c nt , c rcel y mm long ; r chill pilo e , mm long .

Tw Y LO CA L : as a u a s as eed . T PE ITY C c de Mo nt in , W hington ( y)

I O : as a u a s a s . DISTR BUTI N Known only from the C c de Mo nt in , W hington A A 1 6 A : u . . . . r . rost. 7 : . 4 H . M an . 61 2 I LL USTR TIONS B ll U S Dep g g f ; itchc . f .

8 . alam i f li n ll a s s sa e a e . . . D e . U . A ro st. C gro t o o K r y , B u S p Agr g

1 898 .

ala m a ro t s l l a n lo ol a as . . . a . H . 3 s s a i ca v r . S N t b : 83 . 1 892 lon i ol C g i y gif i V ey , Contr U er Not C . g f i a H 1 84 ook . g

u s a u s as s a u us s a a 30— 60 C lm in l rge t ft , erect or cending , c ber lo , e peci lly below the p nicle , — . a s a s a us u 2 4 . a s s s ﬁat usua u cm t ll ; he th gl bro ; lig le mm lon g ; bl de ometime , lly invol te , numer o us a nd a as s a as as l — u 2 . crowded tow rd the b e , ﬁrm , mooth , ne rly long the c lm , mm wide ; a a s o r ss s s s u 5 — 1 2 . p nicle p le , den e , more le pikelike , ometime interr pted below , cm long , the a s s ab ul us a s s ab us s a nd u s a u a a xi c er o , the br nche c ro , hort crowded ; gl me c min te , gl brous , abou t — 1 . a a u a 5 7 . a w 4 s a us awn cm long ; lemm c min te , mm lon g, the pex ith et ceo teeth , the from

a - as u a ab u 8 . a a us a s u u ne r the b e , genic l te , o t mm lon g bove the bend , the c ll h ir n mero s , 3 mm . a a s a as a s a . l ong ; r chill pilo e , ne rly lon g the lemm

A lv l i lo n ol L L . s a ca a as C . oliosa is ba s : H u b TYPE OC ITY (of C y gif i V ey , on which f ed) m oldt Co unty , Ca liforni a (Bol a nder H b a nd u : u s a a . DISTRIBUTION m oldt Mendocino co ntie , C liforni

L R A H a . . 61 3 . I L UST TION : itchc . M n j

5 06 NORTH AM ERI CAN FLORA [VOLUME 1 7

k u b k s o r - s o r ss s u s 5 1 2 . den e , more le pikeli e , often interr pted elow , pin i h p rpli h , cm long , n a a u a b a s s a d s as 5 . u s a u r rely longer , the r nche hort crowded , r rely m ch cm long ; gl me c te , — w 4 s ab ru u s 6 8 . a a a s as u s a s ta us c e lo , mm long ; lemm ne rly long the gl me , the pex ith e ceo teeth , 2 a of a wn a as a u a s a u . s us and a i a the a from ne r the b e , ﬁn lly genic l te , ex erted bo t mm ; h ir c ll r ch ll

abou t o ne third as long as the lemma .

a TYPE L OCA L ITY : Northern British Ameri c . : s a nd ffs a A as a and s u a u b S u a a DISTRIBUTION Rock cli , Greenl nd to l k , o thw rd to Q e ec , o th D kot

a H s a and a a a s S b a . (Bl ck ill ) , Color do , C liforni ; l o in i eri

1 . 490 9 1 H . a 6 A o . 1 A st 7 z 4 . . 4 . A O : u . . S . . r . r I LL USTR TI NS B ll U Dep g g f , ; itchc M n j b s A a au s alam a rost s s lvati ca NOTE : Thi s s pecies h as been referred y ome meric n thor to C g i y (D C . ) Ku nth

Z i O esterr . . e ts . 2 1 2 alam a s is Pi ie i ac . 5 . C gro t tt r H k B ot 1 1 902 08 .

s s s a 3 0—5 0 ul s a u as a us cm . a C m erect from dec mbent b e , r ther loo ely ce pito e , gl bro , t ll ;

a s at as u u u a u 1 . a s a s and she th , le t the lower , p ber lent ; lig le bo t mm long ; bl de r ther hor t

us a t as of a ﬂat o r s u s o n u su a 1 0—20 cl tered the b e the pl nt , loo el y invol te , p ilo e the pper rf ce , — 1 0—2 0 w a s a a s . a a . 1 2 . s cm long , mm ide ; p nicle oft , n rrow , r ther loo e , ! cm long , the xi ne rly f a at as as u as 9 s a s as s o . u s mooth , the br nche cending , ome the lower n ked b e , m ch cm long ; gl me

a a u a e a us a u 5 . a a s a u s n rrow , c min t , gl bro , bo t mm long ; lemm little horter th n the gl me , the

awn a a us a u a s i al s tt ched j t bove the middle , genic l te , twi ted below , the term n egment hori

1 . a l a us s a a s ss a a 2 . z onta 5 . s , mm long ; c ll h rp , the h ir le th n mm lon g ; r chill mm long , trongl y pilos e with h air s 3 mm . long .

Y L A L : u a s a 3 1 00 . alt . s a a P il l ier T PE OC ITY Cerro de B en Vi t , m , Co t Ric ( a R a DISTRIBUTION : Mounta ins of Cost ic .

l A m . 2 34 i in l i e a asse s N . : 1 3 . al m a s s P e 5 . 1 8 96 C a gro t r g B , Gr .

Am 2 345 1 as 96 . n l a ass s . . : s . 8 D e euxi a P r e S b . y i g i cri n ; Be l , Gr e N , ynonym

— u s s a o r few a u a us 5 0 60 . a C lm olit ry in t ft , erect , gl bro , cm t ll , with creeping rhizomes ; — — u u 1 2 . a s ﬂat s a 1 0 1 m s a s a us or s us 5 c . he th gl bro lightly ro gh ; lig le mm long ; bl de , c bro , long , — s a n 6— 1 0 1 2 . a a a s s . a i mm wide ; p nicle n rrow , r ther oft , omewh t nodding , pi ki h , cm long , the x s s ab u us a s a a s a us us a s a w h c er lo , the br nche c pill r y , c bro , cl tered , overl pping , ome n ked below it s s - ﬂower ed u s a a u a s s a u us a u 5 hort one intermixed , few ; gl me n rrow , c min te , oft , c ber lo , bo t mm .

a s s ab ul us a um a 4 . awn a a us long ; lemm oft , c er o , c in te , mm long , the tt ched j t below the middl e ,

a a ul a s a s a s s a u r ther we kly genic te , omewh t twi ted below , the termin l egment ex erted , bo t 4

- 1 . a a . . a us a s a u s s w mm long ; c ll h ir bo t mm long ; r chill mm long , trongly pilo e ith h a irs as much as 2 mm . lon g .

P L C A L : S a a u a ua r n le TY E O ITY ierr M dre , Chih h (P i g a a DISTRIBUTION : Chihu hu .

i i h n 1 4 . L e l am a s s e na ase a . h a as . 1 C gro t o rd C ; L o rd , Jour W A ca d . 7 7 2 1 2 7 . 9 .

u s a s a o r — s s ss a us 60 1 00 . a C lm lender , cending , olit ry few together , compre ed , gl bro , cm t ll , s a u a s a s s s a s s the node d rk , the lower genic l te ; he th mo tl y horter th n the internode , trongl y

r u s u s sh a e u a ne ved , the lower min tel y retror el y p be cent , redded in g , the pper gl brous ; ligule — 3 4 . s a s l a x fi at s a us s u a an mm lon g , ero e ; bl de , , c bro , mo tly min tel y cili te d in some lea ves — — s a - s s u su a 6 20 . 2 5 . a a s p r el y pilo e on the pper rf ce , cm lon g , mm wide ; p nicle fin lly long ex erted , a — — s 1 2 20 . 2 4 . s as a u p le , nodding , loo el y flowered , cm l ong , cm wide , the lender cending sc bro s b a — s s s a as s s u 2 5 . u s ua o r r nche mo tly i n m ll f cicle , evenl y d i trib ted , cm long ; gl me eq l the fir st s s a u a u s a us a nd a . a very lightly horter , br ptly c te , c bro on the b ck keel , mm long , the m rgins

b nl u - a a ﬂoret a ua thin , oth commo y p rple tinged tow rd the pex ; ne rly eq ling the glumes ; lemma a ua u u o n a 4 s s a s . a s and a ne rl y eq lin g the gl me , c bro the b ck , mm long , the m rgin pex thin , awn a a a a s s a us ﬁ exuous and the tt ched little bove the middle , lender , c bro , divergent at m atu

a us - a s us a u a as a s a a rity ; c ll h ir copio , white , bo t h lf long the lemm ; r chill a abou t one third as A RT 7 1 93 7 A A 507 P , ] PO C E E

a - s a s o n u s a nd a long as the lemm , long pilo e with white h ir the o ter ide with few h air s at the summit .

L A L : u H ai L eonard TYPE OC ITY F rcy , ti ( H a a : u a a s s . DISTRIBUTION Mo nt in me dow , i p niol 1 a n A a . 1 7 2 . . H . M . . . . as . 7 4 : 0 . I L L USTR A TIONS : Jou r . W h c d f ; itchc W I f

l a a s is orizabae R . e . eal ass s 1 5 . N a m e . A m . C gro t ( upr ) St ud ; B , Gr

9 . 2 : 340 . 1 8 6

u . . . a . 1 05 . 1 886 . D eyeuxia oriz a bae Rupr . ; Fo rn Mex Pl Gr m 1 u . . a . 1 09 . 8 6 . u aba 8 . A ha eta l um osa . c p Fo rn Mex Pl Gr m (Type from Mo nt Oriz , Mexico ) A m 34 l a s s . . 2 : 0 . 1 896 . a s A h et a l am a rost s erec a as c a a lum ose u . C g i Be l , Gr e N (B ed on p Fo rn ) A m 2 4 m os a b . a ass s . : 3 0 as s r r s u 1 96 . as alam a o t s l S . e ecta . 8 C g i p cri n ; Be l , Gr e N , ynonym of C (B ed m t m h a et l um o a u . a la a os i s lu o a . 1 825 on A c a p s Fo rn ) Not C gr p s Spren g .

a u s a us o r s a u us a 60 —1 00 a Cu s . lm in l rge t ft , erect , gl bro , c ber lo below the p nicle , cm t ll ;

s a s a us o r s a us u a a u 3 . a s s s he th gl bro c bro ; lig le n rrow , bo t mm long ; bl de erect , lender , clo el y

u s a us o r a ab us a u a as as u a a a invol te , c bro ne rlygl ro , bo t h lf long the c lm ; p nicle open , pyr mid l , — u 1 0 1 5 cm . ax s s a u us a s s as o r s a p rple , long, the i c ber lo , the br nche lender , cending pre ding , — - a u us a 4 8 . usua a s ﬂowered a sc ber lo , n ked below , cm long, ll y with few hort few br nch es inter — 4 5 . a u s a u a us a u u u s 4 . mixed ; gl me c te , gl bro , bo t mm long ; lemm min tel y p be cent , mm

a ss o r w a s s a a wn a a us- a s s a a long, wnle ith hort tr igh t below the pex ; c ll h ir very hort ; r chill

- — a s a s s s 1 2 . . r ther p r el y hort pilo e , mm long

L A L : u aba Ga leott 5 7 80 TYPE OC ITY Mo nt Oriz , Mexico ( i ) a DISTRIBUTION : Mou nt ins of sou thern Mexico .

l is if li i h c c 1 . a am a s erect o a tc n 6 s . o v . C gro t H o k , p

u s a us o n 1 C u s a s s u a . a s a s a lm in l rge den e t ft , erect , c bro the pper p rt , m t ll ; he th p le ,

- a us or u s a us u 2 3 . a s s u s a us gl bro the pper c bro ; lig le mm long ; bl de erect , clo ely invol te , c bro , — ul a u 1 . a a a a as as O s 1 5 2 0 . rigid , h l f long the c m , bo t mm thick ; p nicle pen , p yr mid l , mo tly cm

a s s a us a s a a ﬂexuous s a o r s a us a long , the x i c bro , the br nche c pill ry , , pre ding drooping , c bro , n ked — as u as 1 0 . a s 3 5 . a a u s a w a u below , m ch cm long, verticill te , the verticil cm p rt ; gl me n rro , c te ,

— - - a us s a us 4 5 . s l s 3 gl bro except the c bro keel , mm long , the ﬁr t nerved , the econd nerved ;

a a a a us o r u s a u us a u 4 . awn a o r lemm l nceol te , gl bro min tel y c ber lo , bo t mm long , the w nting reduced to a short often divergent point no t extending beyond the tip of th e lemm a ; cal lus- h airs

- — 1 . a a a a u a a u a s u s s 2 3 . . r ther b nd nt , bo t mm long ; r chill r ther to t , hort pilo e , mm lon g

i a a a l a r C ulmi dense c aespito si erect m . lti ; v gin e g b ae vel superiores scabrae ; ligul a

— inv lu e c i l a a a erectae o ta s abrae ri dae e on a tae 1 . crassae anicul a 2 3 mm . long ; l min e g g mm ; p

— illari u ﬁ ex i l i a a s a s 1 5 2 0 . a a s c a b s uos s atu s scabris u s p yr mid li p ten cm long , r mi p p , inferne n di , i ll i l m ae - e i at s u an ustae 4 5 . l n us u ad 1 0 . s v rt c o ae a a a u q e cm longi , ; g g mm g ; lemm l nceol t m

c erul um a 4 . u a a u gl abrum vel minute s ab circ mm long m ri st n ll a vel brevissima ; pili calli 1 mm . — r v er su . longi ; processus r achill ae b e it p ilo s 2 3 mm longus .

a a u u a a a s a u ab u 3000 s Type collected on p rti lly open gro nd , Mo nt Nev d , J li co , ltit de o t meter , 2 H tchcock 7 1 6 . . at. H no . S b 23 1 9 1 0 A . S . S N b . 844948 eptem er , , i (U er )

B T : u a a and u a . DISTRI U ION Mo nt Nev d Mo nt Colim , Mexico

i i n. a se n 1 l a is m ontanens s c i n. c 7 a am s . C gro t (S r b ) S r b ; V y , Co tr

e . : 2 . 1 92 . U . S . N at. H rb 3 8 8

’ A i 4— . . o c c . 5 2 . 1 885 . D eyeuxza m ontanensi s Scribn Proc S . Prom . gr . S : 5 l a nd d la 3 5 . 89 . a lam a rost s ne ecta v r . ca i u a n u . . S . . A r . A r ost. 1 1 : 1 8 C g i g Ke r ey , B ll U Dep g g (Type

ss H s A ss b a . from Cypre ill , ini oi ) — u s stiﬂl s a us a usual 20 40 . a s i s a C lm y erect , c bro below the p nicle , ly cm t ll , omet me t ller , s u s a s o r ss s a u us a us with slender creeping rhizome ; pper he th more le c ber lo , th e lower gl bro , — a a u 1 3 . a s s a us or ess u a r ther p p ery ; lig le mm long ; bl de erect , c bro , more l invol te , t pering into

- — a s a ul a s s l 5 1 5 . s ss a 2 . ﬁne h rp point , the c m bl de mo t y cm long , mo tl y le th n mm wide when — ﬂat a s o r ss u usual a 5 1 0 . a s s a us ; p nicle den e , erect , more le inter r pted , ly p le , cm long , the xi c bro ,

— m a a us s and u s a u i a s a us 4 5 . the br anches sc bro , hort crowded ; gl me c m n te , c bro , mm long ; lem

508 NORTH AM ERI CAN FLORA [VOL UME 1 7

- wn a a a s as u s 4 s a u us a a u 1 . nearly lon g the gl me , ﬁnel y toothed , c ber lo , the tt ched bo t mm

ab ba s ab u ua a s u a a nd u s s ove the e , o t eq lin g the lemm , lightl y genic l te protr ding from the ide

f u s a a a as as a a s o f a us a nd a a a a u a o the gl me ; p le ne rly long the lemm ; h ir c ll r chill r ther b nd nt ,

abou t h al f as long a s the lemma .

T L A L : H a a a Scr bner . YPE OC ITY elen , Mont n ( i ) I : a s a nd u a i ba a nd A b a S u a a DISTR BUTION Pl in dry open gro nd , M n to l ert to o th D kot , Wyoming , a a nd Id ho .

n . 61 6 . M a . I L L USTR A TION : H itchc . f

i e s c l . P . c . h il . al am a s s e sc n c a P a . 1 8 . C gro t rub B u k ro A d 2 2 1 8 62 : 9 . 1 8 6

3 l m r 28 . 1 88 . as C a a a ostisrnb n n as s s . S . esce s ezl xi a u besce s as u . D ey r V ey , Gr e U (B ed on g B ckl ) 0 a a D ca xi a us ck as . G az . 1 : E u s usi ck ey C i ii V ey , Bot (Type from gle Mo nt in , Oregon , C

1 1 5 9 .

b 1 5 1 8 . a 9 . 8 8 D e euxia Suksdor i S b . u . u : S as y ﬁ cri n B ll Torrey Cl (Type from t te of W hington , Su ksdorf H . t. b . 3 : 80 . 8 2 a . N a 1 9 va n nsl a s . . l am a ros t s aleul i ca r . a S Sa a Ca g i g V ey , Contr U er (Type from nt

u a a A nderson. Cr z , C liforni , ) H 2 N a t. b . 3 : 8 . 1 892 . . S . . as D m rost s S uksdor i S b . as e euxi a Cala ag i ﬁ cri n ; V ey , Contr U er (B ed on y

Suksdorﬁ i Scribn . ) A A ro 1 1 : 2 1 9 . 8 . . t 1 . 8 . a a u . . S r s . s l ul l a rosl i s a n usl a . a e i ca C a a m g g Ke rney , B ll U Dep g g (B ed on C

va an usl a as . r . g V ey ) 3 alam a rost s a sc culata a u . . S . . A r . A ro st. 1 1 : 2 . 1 898 . C g i f i Ke rney , B ll U Dep g g (Type from n u a a r in le i 1 882 . Mendocino Co nty , C liforni , P g A A 1 1 : 22 . 1 898 . al a m a rost s s nb exuos a a u . S . . r . rost. O ak C g i ﬂ Ke rney , B ll U Dep g g (Type from a a a B olander l nd , C liforni ,

A r . A ro 1 1 . . t. : 24 . 1 89 n a u . . S s a la m ro t uksdor i luxur a s 8 . C ag s i s S ﬁ i Ke rney , B ll U Dep g g (Type ' u d A L a a Sa ndber H eller é)“ M c D on a I from Coe r lene ke , Id ho g , g

— u s s e u a us 60 1 0 0 . a s m s s a s C lm lend r , t fted , gl bro , cm t ll , with lender creeping rhizo e ; he th l ~ a us but u s o n a s s obscure so u l 3 . a s gl bro p be cent the coll r , ometime y ; lig le mm long ; bl de erect , — 4 f ul 1 0—2 ﬂat o r s a u s a us 2 . s o 0 . s o f omewh t invol te , c bro , mm wide , tho e the c m cm long , tho e — k a s 2 0 40 cm . a a s o r s a s o r u the innov tion long ; p nicle n rrow , pi elike omewh t loo e interr pted , — a u 7 1 5 c m . a s s a u us a s s a us s and p le or p rple , long , the xi c ber lo , the br nche c bro , hort crowded ,

Cusi ckii s s as u a s 5 . a ss u s a s C. s a or in loo e p nicle ( ) ometime m ch cm long , ppre ed ; gl me n r row , — a u a ab us 4 5 . a a a u a s as u s s c min te , gl ro , mm long ; lemm p le , thin , bo t long the gl me , mooth ,

s bs u awn a a s u a s s s o f the nerve o c re , the from ne r the b e , genic l te , ex erted from the ide the — - n u s 1 2 . a a us a s s a a u o e as as gl me , mm long bove the bend , the c ll h ir c nt , bo t third lon g the

a a a 1 . s a s a s to 2 . lemm ; r chill mm long , the p r e h ir extending mm

Y l ll T PE L OCA L ITY : Oregon (N ul a ) . 0 : s ai i s and b a s a i ba s u b a a nd DISTRIBUTION Open pine wood , pr r e , nk , M n to to Briti h Col m i , a s ou thwa rd to northern Colora do and centra l Californi . 1 93 H M an A . A o t 7 : . 4 . . . 61 8 . A . r r s . I L L USTR TIONS : B ull . U . S . Dep g g f ; itchc f : s s s h a s b b s A a au s a lam a rosti s s lvati ca NOTE Thi pecie een referred y ome meric n thor to C g y DC . , a nd b D e ux v r u y others to ye i a a i a K nth .

1 9 . al m a i i P o c . m . c a . 6 : 7 9 1 2 A . a s s P e . a 8 6 C gro t ort r A Gr y , r A d

D e euxi a o rter a 3 “ as a la m rost P orter as ss s . S . 28 . 1 88 . a s i A . a . y P i V ey , Gr e U (B ed on C g i Gr y )

— - — Cu s s a us 2 4 60 1 20 . a s s s a s lm lender , gl bro , erect , noded , cm t ll , with lender rhizome ; he th

ab us — ﬂ a ub s a u 2 4 . a s t a la x sc aberu gl ro except the p e cent coll r ; lig le mm long ; bl de , Spre ding , , — us 4 8 . a a bu t a s a o r u s o r s a no d lo , mm wide ; p nicle n rrow r ther loo e , p le p rpli h , erect omewh t 1 0— 1 5 . a s s a us a s s a us as o r a ss ding , cm long , the xi c bro , the br nche c bro , cendin g ppre ed , over a u — as as 5 . u 4 6 s a u a s a u u s . a s l pping , m ch cm long ; gl me c min te , c ber lo , mm long ; lemm lightly s a u s a t a a wn a as a u as as horter th n the gl me , toothed th e pex , the from ne r the b e , bo t long the

a a nd u s o f u s a a a u as as a lemm , bent protr ding from the ide the gl me ; p le bo t long the lemm ;

a us - a s a s a a a a s as a a a— a s s a to c ll h ir r ther c n t , ne rl y h lf long the lemm ; r chill h ir c nt , extending ab out 3 mm .

' L A L : H u u P e nns lva nia P orl er TYPE OC ITY ntin gdon Co nty , y ( in : s a s a a a u a and D STRIBUTION Dry roc y o l , r re , ew or , enn ylv n , V rg n (L r y) , West ' I k i N Y k P i i i i i i i V rg n a . B ll L L A : u . . . A . A 1 . 8 H . a . 2 S . r ro s t. 7 6 0 . I USTR TIONS U Dep g g : f 48 ; itchc M n j. A RT 7 1 93 7 A A P , ] PO CE E

i l i n. irc . D e . A r . 2 al am a s s e exa c . . A r 0 . U C gro t p rp S r b C S p g g o st . 1 1 3 0 : 7 . 90

r br D A r 1 m o t evi sel a la cust s a . A r 25 . 898 la a s s u . . S e . . ro s t. 1 : a 1 . C g i i Ke rney , B ll U p g g (Type from

d u L a c s a . Fond , Minne ot )

A r . A o 1 1 r t nem o B ll . . . 2 . 1 898 . l a lam a os s ra l s a u . S r s t. : 6 nem or a s C g i i Ke rney , U Dep g g Not C . i 96 1 8 . Philippi ,

n va a u s H . r t P i ckeri i i r . l c str . a 8 : 2 1 0 . 1 06 as Calam ag os is g i itchc Rhodor 9 . (B ed on C brevisel a a l a custris Ke rney . ) l I l . . 2 . 1 20 lam a ost s la custr s as . . : 8 . 19 13 . as brevi el a . s a C gr i i N h , in Britt Brown , Fl ed (B ed on C

l acustri s Kearney . )

P o te i ff s a a s a s C. us Re embling r r ; di ering in the omewh t l rger den er p nicle , i n the more copio

- n al us a s a u u s as as a a d a awn. c l h ir bo t three fo r th long the lemm , i n the more delic te

’ \ ’ 1 1 P L AL . nem oral s : a s a a a a D udle 1 884 E OC ITY (of C i ) Th cher Pinn cle , ne r Ith c , New York ( y in ) : s and sa s s u a s H a s DISTRIBUTION Wet rock ndy hore , infreq ent , M ine (Elliot ville) , New mp hire u a s a a ar L a a nd s a d u ac (White Mo nt in ) , New York (Ith c ) , Ont io ( ke Nipigon) , Minne ot (Fond L ) H M an 22 6 . I L L USTR A TION : itchc . . f.

i i 1 al am a s i s Cain i ch c . . h . . 4 . as ca 24 480 . 1 93 2 . C gro t H t Jour W A d :

0— 4 C u s s s a us a 3 0 . a s a s a us u lm lender , erect , c bro below the p nicle , cm t ll ; he th gl bro ; lig le

- — o f ul a s u us a a a 1 2 . a s c m le ve thin , ro nded or obt e , ﬁnel y dent te , becoming l cer te , mm long ; bl de

ﬂat o r ss u a n a u a a us a s a u us erect , , more l e invol te tow rd the ﬁ el y tten te tip , gl bro bene th , c ber lo — a a a s a 1 . o n u su a sa s a s u as 35 . 2 the pper rf ce , n rrowed tow rd b e , the b l o ne m ch cm long , mm

- — ul a 5 1 0 . a u 1 w u s . a a o r s ide , the ppermo t c m bl de cm long , bo t mm wide ; p nicle p le whiti h ,

— ab v rtic s 6 1 0 . a s s us a s as o r s a s a e loo e , cm long , the xi c ro , the br nche cending omewh t pre ding ,

— - - l 2 . a l s a s a us s s 7 1 5 . a a s ill te , c bro , cm long , be ring few pikelet , the whorl mm p rt , the pedicel s a us- u s u s a w a ua a u a o r s a s a a us c bro p be cent ; gl me n rro , ne rly eq l , c mi n te lightl y ri t te , gl bro

— - s a us u a o f s 5 6 . s l s 3 except the c bro pper h lf the keel , mm long , the ﬁr t nerved , the econd

a a a u a 5 - a us u s a u us a nerved ; lemm n r row , c min te , nerved , gl bro below , min tel y c ber lo ne r the

u Ca u - a a wn . as s s s u 1 . a a u 1 ﬁnely toothed mmit , the ll h ir bo t mm long , the bo t mm from b e , s a ul a s to o ne s and s a omewh t genic te , twi ted below , the tip bent ide omewh t exceeding the gl umes ; p alea a little s horter th a n the lemm a ; prolon ga tion o f the r achill a very short but the — h airs 1 2 mm . long .

: Su u o n e a b u 200 n M OCA T e C t ss lt. a i E L L L 0 . a I Y mmit of Mo nt , Tenne ee , o t m (C

DISTRIBUTIO N : Known only from the type locality .

2 l i k i a am s s nut aens s P e l e . n. . 1 9 . 1 8 5 4 . 2 . C agro t ( r s ) St ud Sy Gram 0

k 1 H ae n . : 25 0 . 1 830 . D e euxi a nutkaens i s s . y Pre l , Rel M em A a t - éte b 2 1 2 m ro t alea t co . . P . S . rs . . : 1 7 . 1 83 . Cala ag s is i Trin ; Bong c d . VI (Type from

a as a s a A a s a . Un l k I l nd , l k ) t a 2 3 4 l m r t 3 5 . 1 86 1 as a a a os s enxi a aleu i ca u H . . s . . Soc . D ey M nro ; ook f Tr n L inn : . (B ed on C g i

a leuti ca Trin . )

ns . A a . a . 1 8 62 92 1 862 u b a a s ala m a rost s albi ca u . : . . C g i B ckl Proc c d Phil (Type from Col m i Pl in ,

N nll a ll . Oregon , ) ub 1 4 a s a l u . 5 D e euxi a br evi ar is l a a as : 8 1 1 888 . u y V ey , B ll Torrey Cl (Type from V nco ver I l nd , M acoun in n a A r . A ro s t. 1 1 : 20 . 1 898 . alam a rost s a lea t co ate s u . . S . . C g i i p Ke rney , B ll U Dep g g (Type from

u a a . Mendocino Co nty , C liforni )

— 5 . a C u s s u a us o r O s a us s a w s l l . lm to t , erect , gl bro ften c bro , e peci lly belo the node , m t ll ,

— ﬁ a t s s s a s a us o r u s u 6 8 . a s a with hort rhizome ; he th gl bro ro ghi h ; lig le mm long ; bl de elong te , — i a u a ua a to a s a us 8 1 2 . becoming invol te , gr d ll y n rrowed long point , c bro , mm w de ; p nicle — usua u s a a s 1 5 3 0 . a s s a us a s a lly p rpli h , n rrow , r ther loo e , cm long , the xi c bro , the br nche r ther — 1 5 . stiﬁl as a s 3 6 . a as u as y cending , overl pping , the longer one cm long , or r rely m ch cm long ; — 4 . u s a u a s a u us 5 7 . a s a u gl me c min te , c ber lo , mm long ; lemm indi tinctl y nerved , bo t mm l ong ,

awn a s u a as s u a a u ua a o r the r ther to t , from ne r the b e , lightl y genic l te , bo t eq ling the lemm a u a shorter ; h airs o f callus and r achill a bo t h lf as long .

a a H nk W P O A : a S u u s ae e . E L C L ITY Nootk o nd , V nco ver I l nd ( )

: s s s a as A u a s a s A as a . DISTRIBUTION Moi t oil or wet wooded hill long the co t from le ti n I l nd , l k to centra l C aliforni a ; als o K amch a tk a .

A A r 7 . H a 2 . o st. : 1 45 . . . 6 3 . S . r . I LL USTR A TIONS : B ull . U . Dep g g f ; itchc M n j 5 10 NORTH A M ERI CA N FL ORA [VOLUME 1 7

1 7 . 1 9 1 . alam a s i s ensa ase B o t. G az . 6 : 1 4 8 2 3 . C gro t d V y ,

A m 2 : 3 1 896 . 45 . as . dens as n a ass s . . a . eler ioi des var . de sa Ca la m agrosti s ko Be l , Gr e N (B ed on C V ey )

1 1 0 . A r . A rost. : 2 1 898 . as . nsa ro t s vi l ae orm i s a u . . S . . de Ca la m ag s i f f Ke rney , B ll U Dep g g (B ed on C

V as ey . )

u s u a us or s a us us l an l C ulm s r a ther s to t , den el y t fted , erect , gl bro , c bro j t be ow the p ic e ,

i a s u i s s ea s s s ab us ul 3- 5 1 . a mo stly more th an m t ll , w th r ther to t rh zome ; h th lightly c ro ; lig e — — a s ﬂat o r su u s a us 1 5 25 . u s s 3 8 mm . long ; bl de binvol te , c bro , cm long, the ppermo t horter , — w a i s i k s or s s a 1 0 1 5 . a s s a us mm . ide ; p n cle p keli e , den e , more le lobed , p le , cm long, th e xi c bro , — a s 1 3 . u s a u a sca u us the br anch es crowded , overl pping , mo tly cm long ; gl me c mi n te , ber lo ,

m a s a u s u at a awn w s e 5 mm . lon g ; lem horter th n th e gl me , min tel y toothed p ex , the bent , t i t d

a u as a s m a o r ess s at s a us- a s sca or below , bo t long the lem , more l ex erted th e ide , the c ll h ir nt a a a a ea a as as o r a a a a wanti ng except ne r the r chill ; p l n rrow , lon g , longer th n the lemm ; r chill

1 . s a s . mm long , p ringl y pilo e

Y O AL : u a Sa n u a a O rcutt . T PE L C ITY J li n , Die go Co nty , C liforni ( )

I O : s a s rubs u ai s as San i a i i a . DISTRIB UT N Dry hill , mong h , mo nt n e t of D ego , C l forn 24 M an. . 6 . I L L USTR A TION : H itchc . f

k l eri ide s ase . az . 1 : 1 4 7 . 1 1 al m a s is oe o G 6 89 . 24 . C a gro t V y , B ot

densa s a us u s and u s a l es D iffers from C . i n the more lender gl bro c lm (often p rpli h) p nic ,

- us a . s a dens . a us u es and s s a of C. a thinner gl bro gl m , more p rominent c ll h ir Po ibl y form

A : u a Sa n u a a Or cutt . TYPE L OC L ITY J li n . Diego Co nty , C liforni ( ) T I : s ba s a nd a s as i and s u a to DIS R BUTION Dry hill , nk , me dow , Wyoming to W h ngton , o thw rd a sou thern C aliforni . 2 M an. . 6 5 I LL USTR A TION : H itchc . f .

wall en . i s ins e a a u ash . c al am a s S a . 2 5 . C gro t p r t , Jo r W A d 4 1 1 935 . 2 5 : 3 .

— ul 85 95 . a s s s a s u s a h e C ms cm t ll , erect , with lender creeping rhizome ; he th m ch horter th n t ﬁ t s s or s a u us ul a u 5 . a s a a us s a us internode , mooth c ber lo ; lig e bo t mm long ; bl de , gl bro with c bro — — u a — 3 . a ani 1 2 1 4 m . a i s 1 0 22 cm . 8 c th e a s m rg n , long , mm wide , c min te ; p cle long , br nche as s o f a wa as m a as at as u as 5 . n rrowl y cending , le t ome them n ked to rd the b e , the lower m ch c

- s s a es s a s 5 . u es un ua s l long ; pikelet ppr ed to the br nche , mm long ; gl m eq l , the ﬁr t nerved ,

- s 3 r m a 4 m m . sca us a s awn a a the econd ne ved ; lem long , bro , the tip n rrow , ero e , th e tt ch ed a u o ne u a as ua m a ul a u bo t fo rth bove the b e , eq ling the lem , genic te , p rotr ding from the sides of

u es ca us- a s a s s of s a u a as as a the gl m ; ll h ir r ther den e , tho e the ide bo t h lf long the lemm , those

a t a s a a . a s 2 . the b ck horter ; r chill mm long , the h ir mm long .

’ Y O a s u B artle a P onli u L AL : s . T PE C ITY J ck on Co nty , Ohio ( y ﬁ )

DISTR IBUTION : Known only from the type locali ty .

l i i kerin . 2 . n 6 a am a s s P c a M an. . 2 . 5 4 7 . e d 1 8 5 . C gro t g A Gr y , 6

r M a a la m a rost s s lva t ca var . b evisel a A . a n. 5 82 . 1 848 . u a s C g i y i Gr y , (Type from White Mo nt in , H a New mpshire . )

D . 2 8 i ck ri n i as ass s . . 1 883 as e eux a P i e i S . alam a ro t P i cker n s s i i i A a . y g V ey , Gr e U (B ed on C g i g . Gr y ) m r t b 5 : 4 1 1 8 4 a la a brevi l S b . . u 9 os s s e a . . as . s lvat ev et C g i cri n Mem Torrey Cl (B ed on C y i ca var . br i s a A a . . Gr y )

ala m a r t br vi ta deb l s a u . . . A . S . r A os s e se t. 1 1 ros 1 898 . C g i i i Ke rney , B ll U Dep g g : 25 . (Typ e from f u a R ob nson 65“ Schrenk New o ndl nd , i

a lam a ro st s P i ckerin i i var . deb l s a a a 1 5 3 : 1 35 . 1 19 . as C g i g i i Fern ld Wieg nd , Rhodor (B ed on a br v l d l . C . e i se a ebi i s Ke rney )

C u s u a u — s a a s a s a 3 0 60 . a lm olit ry or few i n t ft , r ther rigid , c bro below the p nicle , cm t ll , — s s a s a us o r s u u 2 4 or on with creepi ng rhizome ; he th gl bro lightly ro gh ; lig le mm . long shorter ﬂat s a us 1 0— 1 5 — a s a es . a 4 as 5 . the innov tion ; bl d erect , , c bro , cm long , th e b l longer , mm wide ; a nd a — u s a a s 7 1 2 cm . a s s a u us th e p nicle p rpli h , erect , contr cted r ther den e , long , the xi c ber lo , b — — a s s and 1 2 . o r s es s a es 3 4 . u es r nch e hort crowded , cm long, ometim in loo er p nicl , cm long ; gl m a u 4 . a a s a u s s a ul us a w o an c te , mm long ; lemm little horter th n the gl me , c ber o , n rro ed t

us awn a ac a u 1 . a as a ou as as a obt e point , the tt hed bo t mm bove the b e , b t lon g the lemm , slightly

5 1 2 NORTH AM ERI CA N FLORA [VOLUME 1 7

— a s a s u us a ﬂat a l ax s a us 4 8 . a innov tion ; bl de n mero , elong te , , r ther , c bro , mm wide ; p nicle

a and a s to s and a s al at as a o r nodding , from n rrow r ther den e loo e rel tively open , e peci ly b e , p le — l us a s a s a us a ﬂexuous u 1 0 2 5 . a s s a u p rple , cm long , the xi c ber o , the br nche verticill te , c bro , r ther ,

a a ss as o r s s o r ss s a s a overl pping , ppre ed , cending ometime the lower more le pre ding (e peci lly in — a s s s a s s u s usua 3 4 . nthe i ) , the longer one n ked below with hort one intermixed ; gl me lly mm

s o r s a us a u to a u a a a as as long , mooth more commonly c bro , c te c min te ; lemm ne rl y long the

u s s awn a e s a a a and gl me , mooth , thin , the delic t , tr ight , tt ched below the middle extending

o r s b its a us - a s a u a a u a s a s a a a a to lightly eyond tip , the c ll h ir b nd nt , bo t long lemm ; r chill delic te ,

- sp ar sely long pilose .

M h x TYPE L OCA L ITY : Ca n a d a ( i c a u ) . : a s s a nd a s s a nd a s a A as a and DISTRIBUTION M r he wet pl ce , open wood , me dow , Greenl nd to l k , s u a a a a a a u a ss u a nd a a . o thw rd to M ryl nd , North C rolin (Ro n Mo nt in) , Mi o ri , C liforni M n 6 1 a . . 3 . I L L USTRA TION : H itchc . f bra 1 . 34 . . sca s ab a s H . Am . u . . 2 1 : 35 1 9 Cal amagr osti s can aden s i s va r . c r (Pre l) itchc Jo r Bot C

1 830 . as v . . D e euxi a P resli u R e . a . u l n 1 2 4 1 8 0 . s R e . H ae k . : 3 . 3 i S Pre l , y K nth , Gr m ppl xx (B ed — f a a a i b a s s s 6 . br s . . sca a on C Pre l ) Di fering in h ving on the ver ge w der l de , pikelet mm long , the u s a h is idl S - a s s ab us s bu t a gl me r ther ﬁrm , p y hort cili te on the keel , trongly c ro otherwi e , the gre ter

ka u a u s a . I : s ab s a . L A L o o t S c ridity not con t nt TYPE OC ITY ; N o nd , V nco ver I l nd DISTRIBUT ON u a s E a a nd a and a a as a s Mo nt in of New ngl nd , New York , northw rd , long the P ciﬁc Co t from W hington H M a n B h b b a a A : . . . 63 1 . : s as to A l as k . I L L USTR TION itchc NOTE Thi form een referred y m ny ’ f a L n a u bs A m a u s . a saor L . s s s eric n thor to C g ﬁ ( ink) Trin , di tinct Old World pecie , with min te or o olete a a n a ra chill d sm ller s pikelets . i a 1 930 . e eux M a uniana bb s a 2 4 1 . D Ca a a o s i s a ad s s var . co as S 3 : l m gr t c n en i (V ey) te in , Rhodor y 3 a t. H b . : M n a z . 1 0 2 7 1 M ou ni ana . . . N n : . 9 . 885 . a c as S a con i a a as . G V ey , Bot C V ey Contr U er n a 1 D x M un n f . cana de s s s as e eu i a aco i a a as . 8 1 892 . (B ed on y V ey) Di fering from C i in the m ller b TY A : s a s i s a u 2 . . L L : s . p kelet , o t mm long PE OC ITY Northwe t Territory DISTRIBUTION Minne ot n a n a a n a Sa s a a a d as d s u to ss u d . to k tchew n W hing ton , o thw rd Mi o ri Oregon ; r re

2 1 la a is l ac e al a . A m . 2 : 346 . 8 96 9 . a m s a e sses N C gro t t B , Gr

l m a ro t L n 1 1 as dor l a ctea a u . . A r . A ro t. : 2 8 . 1 898 . a a s s a s S . . s C g i g ﬁ Ke rney , B ll U Dep g g (B ed on l a ct a C . ea Be l . )

D e ei l te k d D u t . a 1 9 2 1 0 1 a m a ros t s l a ctea a . l . s . l x : 9 . 9 . as a y ia a c a Su s e s Bot . Mon t (B ed on C g i Be l )

Cu s as a s a us su u a s and a lm cending , we k , c bro below the bgenic l te node below the p nicle , — — l us u a 3 5 . 8 0 1 5 0 . a s s s a s s a u cm t ll , with hort knotty rhizome ; he th c ber o ; lig le r ther firm , mm — a s a flat l ax s a us 6 1 2 . a a a a a long ; bl de elong te , , , c bro , mm wide ; p nicle p le , n rrowl y pyr mid l , — a and s u s a u a s a us 5 6 mm . a s r ther open loo ely flowered ; gl me c min te , c bro , long ; lemm horter

a u s s a us a s a us - awn a a a as a u th n the gl me , c bro , the pex et ceo toothed , the tt ched ne r the b e , bo t

ua a a u a a a s a al us- a s eq ling the lemm , we kl y genic l te ; p le lightl y exceedin g the lemm , the c l h ir

a u a as a a u s a s s . bo t h lf long ; r chill min te , p r ely pilo e

TYPE L OCA L ITY : Sta te of W a shington (Snksdorf : u a s s as and a a a DISTRIBUTION Mo nt in lope , W hington Oregon , pp rently r re A H . M an L L : . 633 . I USTR TION itchc f.

3 0 . l a am a s i s cinnoi l n Fl . e . m . d s M h . a C gro t ( u ) W B rto , Co p il 1 Ph . 4 : 1 1 8 . a 5 . 8

A rost s l a uca u D e s . 7 6 f r c r . a . . a a . a la m a ostis g i g M hl Gr m 1 8 1 7 . (Type rom Penns ylv ni ) Not C g l a nca b 1 830 . g Reichen . ’ A r u nao ci nnoides u D e sc . a . 7 r . 1 8 . 1 8 1 7 M hl Gr m . A r undo co a r cta ta F l 1 4 1 2 . . . . : 8 3 . . Torr U S 9 . (Type from New Jersey ) al am a ro st s L an s d r l m r l nd o i var . a a ca a niﬂ 2 2 24 as A rundo cin U . 5 . 1 8 . C g i g j y i Trin . Gr m . (B ed on no i de s M uhl . ) a la m a rost o a r cta ta T H . s c . t A m ta a . . . n r . 1 839 A ru do co a c 2 : 240 . as C g i orr ; ook Fl Bor . (B ed on Torr ) a la m a rost s N u tta ll n a a S u . 2 1 n d n . . 25 1 1 4 . ca a e s s as . . : 8 0 as i C g i i te d Nom Bot ed . . (B ed on C e s b b u a 1 : 46 . d cri ed y N tt ll (Gen . D e euxia N u ll a lli a na a 2 s as s . n u s 8 . 1 883 . a n l r t ull lli a a . y S . s o a am a os s N a S V ey , Gr e U (B ed C g i te d )

’ a au us u s a s u s a us w a and w s Pl nt gl co ; c lm r ther to t , erect , c bro belo the p nicle belo the node , 80— 1 0 5 . a s s a ofl s a s s a us s s a cm t ll , with lender rhizome re dily broken ; he th c bro , ometime ne rly s s s s a s su u fi at a u a 2 . a s mooth , ometime p r ely hir te ; lig le r ther firm , tr nc te , mm long ; bl de , s ab us s s s a s u — 1 s 5 0 . a s o r ss c ro or ometime p r ely hir te , mm wide ; p nicle erect , den e , more le lobed s a a s s s o r u s — — w a s ( 8 20 . 1 2 . omewh t open in nthe i ) , browni h p rpli h , cm long , cm ide , the xi — s ab us a s s a us a - 1 3 . u s a u a o r c ro , the br nche c bro , comp ctl y flowered , cm long ; gl me long c min te awn- s a us 6—7 . a a u a t s a us s a pointed , c bro , mm long ; lemm firm , c min e , c bro , horter th n the A RT 7 1 93 7 P , ] POAC EA E 5 1 3

u s awn a a a u u w no t u a gl me , the tt ched bo t one fo rth belo the tip , m ch exceeding the lemm , the

- u two s a a a us a s us a s a a u 1 . a us w c ll h ir cop io , bo t third long ; r chill bo t mm lon g , gl bro below , ith a s at a u ua a br ush o f lon g white h ir the tip bo t eq ling the lemm a .

a a TYPE L OCA L ITY : Penns ylv ni . n s u a Y a n : s a d , d s u a A a ba a DISTRIBUTION Bog moi t gro nd M ine to New ork , o thw rd to l m . A A ro t 1 . r s 7 : . 485 H T T O . . . . . M a n u S . 634 S R A : . . . I LL U I NS B ll U Dep g g f , itchc f

i s sc l m ne s M . . s P c . l 1 l am a a . I I f c a . 3 . a 5 : C gro t opu oru E Jo , ro C i A d . 22 7 . 1 895 .

la a u m l ucidu . . lo u S . A r A 1 m r tis sco u . ros t 1 la a os . : 33 . 1 898 Ca g p r Ke rney , B ll U Dep g g . (Type from n a u a s a Jo es 1 1 45 . W as tch Mo nt in , Ut h , — a a au us u s a us 5 0 80 . a s s s Pl nt p le , gl co ; c lm erect , gl bro , cm t ll , with hort rhizome ; hea th s — a ﬂ b — 3 5 . s a a t s a us 3 a us u 7 . a a gl bro ; lig le mm long ; bl de elong te , , c ro , mm wide ; p nicle p le to — u s a s s s 8 1 5 . a s s a u us a s p rpli h , contr cted , ometime pikelike , cm long , the xi c ber lo , the br nche — s a us a ss 1 2 . a u s a u a u a s m a c bro , crowded , ppre ed , cm lon g , r rely more ; gl me c te to c min te , o ewh t — s a us 4 6 . a a u as as u s u s awn a a c bro , mm long ; lemm bo t long the gl me , min tel y pilo e , the tt ched a m s a a u as a s a a us- a s a u bove the iddle , tr ight , bo t long the lemm , the c ll h ir bo t two third s a s — s s a a a a s a s u a . lon g ; r chill r ther p r ely long pilo e , e peci lly on the pper p rt

L A L : S a a Jones TYPE OC ITY pringd le , Ut h ( : s s u s C a t a a a s a a a nd DISTRIBUTION Moi t oil in g lche , Wyoming (Wild Pe k) , Color do (P go Pe k) ,

U tah . A A S . . r . o s t. 1 7 . 489 H A : u . . r : . a . . 63 6 I LL USTR TIONS B ll U Dep g g f ; itchc M n j .

2 l is ine a ° m a s x nsa . a . A 3 . a N a m . am . . 1 C gro t p A Gr y , Gr Cyp 2 1 4 0 . 8 3 .

’ m o t tr cta var brevior as h l a r s s s . R o t r . . 2 8 1 a a s Su . 5 87 8 . C g i i V ey , in Bot Wheeler rv . (Type from s u a Wol Mo q ito , Color do , f ’ b t R o h lam a rost s str cta var . ro us a as t r . . a 285 . 1 8 7 . s Su . 8 C g i i V ey , in Bot Wheeler rv (Type from L a s a Wol Twin ke , Color do , f n D a . 0 : l . 2 942 1 l r h rbor a . m a ost s e ea 5 . 1 . 880 . a a a L . C g i yp nge , Fl p , f (Type from Greenl nd ) ne le t va m er c na as a u a n 4 D e euxia c a r . a a C t. a . . 20 1 a C : 6 . 888 . y g i V ey ; M co n , Pl (Type from Don ld , t s u b a i M a coun Bri i h Col m i , in a n 4 D ux ne le va robusl a s u C a t. a e e i a cta r . a C . . : 2 06 . 1 888 A b a y g V ey ; M co n , Pl . (Type from l ert ,

M a cou n. )

bus ta a . a t H 3 ro N . b . 1 2 l m ros tis s . S . a a a : 82 . 89 . su ab bas . str cta C g V ey , Contr U er (Pre m ly ed on C i t a bu t u va r us a s . . ro s a . 1 86 1 . r . ob V ey ) Not C M ell n a r m er c . la m ost s a a a S b b . u . . A A 5 2 S 8r . 7 as S r . ro s t. : . 1 897 . Ca ag i i cri n ; he r Ryd B ll . U Dep g g (B ed i ne lecta va r m e n x a r ca a as . on D eyen a g . i V ey ) l m r nex n cu re a u i a sa a . . . A . A ro s 1 1 7 . 1 89 a a a ost s S . r t. : 3 8 . C g i p p Ke rney , B ll U Dep g g (Type from a a as Suksdor F lcon V lley , W hington , f m r t l bra dor a a A 1 1 a la a os s a c r , u . . S . . r . A gro st. : 38 . 1 898 . ( C g i i Ke ney B ll U Dep g , Type from Bonne s a L ab a A llen E per nce , r dor , in

la m r t h erbore ten A A 1 1 : 3 1 898 . . 9 . a a os s a s odes a u . . S . . r . ro st C g i yp Ke rney , B ll U Dep g g (Type from lVI a rsh a ll as s a lem ents P , Color do , C

la m a ro t h erbor el n u . . A . A s t. 1 1 : 40 . 1 898 . a s s ea o ata a . S . r r o C g i yp g Ke rney , B ll U Dep g g (Type from u u b as a R dber Pl mmer Co nty , Ne r k , y g

A 1 1 4 1 98 . as la m a r t s h erbo m r . A r . ro s t. : 1 8 a n . os rea a e ca a a u . S . C g i yp i Ke rney , B ll U Dep g g (B ed on D uxi a ne lecta va m a er ca na as . eye g r . i V ey )

l 1 4 1 9 1 2 . a 9 . a am a r ti s m cra nth va . s . . : os a r . si erra e . s C g i M E . Jone , Contr We t Bot (Type from Pr tt nd u s a a a S a Jones . ville nville , C liforni , ) n 4 . i ex l m t n 1 : 9 1 9 1 2 . as a a a o s e lecta va n s . s . . . s i ex a n . r . sa . C gr i g p M E Jone , Contr We t Bot (B ed on C a ns A a p a . Gr y . ) D 4 a s alam a rost s 2 1 8 . 1 9 1 5 . e enxi a h er b elon i l a t. : r a M d . N o ea ta u ne ll Am . y yp g L , (B ed on C g i h erborea elo n ata a yp g Ke rney . ) D e ztx h 4 1 1 as a lam a ost s h er 2 1 8 . 9 5 . e i a erbo ea stenod i l a t. : M d . N es L u ne ll A m . y yp r , (B ed on C gr i yp borea st nodes a e Ke rney . )

l h er bo ea elon a ta a . a am a rost lon t 1 as . M . 5 8 . 1 9 7 . C g is e ga a Rydb . Fl . Rocky ts (B ed on C yp r g Ke rney ) 1 20 a a lam a rost s w o m n en a 66 299 . 9 . i si s a u oc . . : C g i y g G ndog . B ll . S Bot Fr nce (Type from Gr nger ,

A . N elson Wyoming ,

- lam a r t c 3 47 1 930 . a sa a a os is s o ulo rum va B akeri bb s a 2 : . r . S , C g p te in , Rhodor (Type from P go Pe k a B a ker Color do ,

ala m a ros ti ne n a bu b s h a 3 2 : 48 1 930 . a s . st cta va r . s i x a s a v r . ro sl a S b . C g p te in , R odor (B ed on C ri

robzl sta Vas ey . )

2 0 as . st cta var . 1 93 . ala m r t n n a brevior bb s a 3 : 5 0 . a os is i ex a sa v r . S C g p te in , Rhodor (B ed on C ri br evior Vas ey . ) — Cu s u s a us a 5 0 80 . a a s lm t fted , erect , c bro below the p nicle , cm t ll , with r ther lender rhi zom es s a s a us o r s a s ab us asa s u us but ; he th gl bro omewh t c ro , the b l one n mero , withering per 5 1 4 NORTH AM E RICAN FLORA [Yaw n 1 7

— o n blad ﬁrm he r id fla t or loosel invol te ver c i 1e 4 6 . l es a u s abro s sistent; l gu mm g ; , r t rig , y , y u , — — m wide anic1e nar row ense more or less lobed S l S cm . lo n th e axis sca br the 2 4 m . ; p , d , , g , m — c ostl erec c wded and o erla in er sca brous 1 2 cm . lon or sometimes bran hes m y t , ro v pp g , v y , g — — c m o n um es abru tl acu a te sca berulous 3 4 m m . lo n lem m a as lon as the 3 4 . l g ; gl p y mi n , , g ; g

um es scab ous the awn a ac hed abou the middle st ai h or nea r l so abou as lon as the gl , r , tt t , r g t y , t g

- l um es the cal us hai s hal to ee four ths as lo n ach l la m m . lo n som e of the hairs g , l r f thr g ; r i g , rea c hing the tip o f the lem m a .

P LO C A L TY: en Yan N e w Yor k Su mmit) . TY E I P n , ( D IS R B UTI N : M ead o ws m arsh es and we t 1m G ee nland to Ala ska and so u th ward to T I O , , 0 . r , i no is i i N ebras ka N ew M ex o and Ca lif M a ne N e w i sso ur . ornia . i , York , Ill , M , c , 3 7 i S . . A . A t. 1 7 : 4 H tch c . M a . UsTB ATIO N s : Bu . . D r n . ILL ll U ep g m f. : f

t 37 . nex anaa var . barbula Bull . . . De A r ro s t. Cala ma ros tis i ta Kearne 8 . . A l l : 1 898 . g p y . U p g g C u m s o bus u berule belo w the nodes c ol a r of she a ths uberule nt awn m inu te o r obsole te l r t , p nt ; l p ; - as lon the em m a O M a t in ton i r ca us ha i s a as . T r im L CA L ITY: son C oun ash P e ll r y g l y , W g ( p R TI N : K w nl m th e lo w li l DIST IB U O no n o y fro t ype y . l x n - b m o 9 30 C m o ine sa var . non e an i 3 : 5 . ani e a a stia a ae Ste bins Rh l ra 2 1 . P m ore a p gl , 1 cl oo se ﬂo wered the n er branc he s nak ed be lo w Tvr s L OC A LITY: Mo unt Des er t M ai ne Will iam : l ly , lo g . . ( Ra nd in DISTB IB UTTO N Wet ite la ex M ai ne an erm ont £7 : ran d . g t , V or ma - U 7 1 898 e bles N a : Cala ostis calil ornlea Kea r . De . r . t S . A A os . 1 1 : 3 . r sem gr m y wan. p g gr ) ff i . i nex a nsa d eri n ha vin o n e and som e wha t lo os er a nicle; and sh orte r ca l lux bain . C p , i ng g l g r p I C e to m TVP O A Y N ad a i ia . Kno wn l ( the t e c 14 m 444 in I L L T . Sie a Cal rn on m m s i e n I rr v , y y p p e m ( 895 N t 6 9 t R M an . 3 . t a inc t 1 ST A TI hc . : I m a be dh a . ) I LL U O Hi c . I y rm

33 . C ma s i s l he b . I ala ne ec a h n ann Me er 8: Sc P . gro t g t (E r ) G , y r 7 94 . 99 . Wett . 1 : 1

A m ado n t eglecta Ehrh . Bei r . 6 : 13 7 . 1 79 1 . e x ne D c u ia lec t . ta Kun h ev a : 7 n A H . mm . M o rb y g , R C r m . 1 6 . ( m ado u la “ Bh )

De eux ne l v r ! ia ecta ar . l a d Scri Bo t. 1 7 . f m y g g “: bn. d y . C at . 1 1 : 5 l . (Type ro a Tweed P rk . y D e euxic ram m m s B l T u b : 888 T F o e a ris a e ul . orre Cl 1 5 48 . 1 ! from ort e r m s y V y . y . ( Y! G g . j Ba uebec M aco n” in y . Q . D e euxia ne lecta b d - n t f Pe ll ni M ac mi . m T a Yanc . 1 8 o m var . id Ca a n P1 . 2 . 88 . e y g / y : , C ( yp r y Banks N h m t i to or t e r Um m . . T rr y . ) ’ B e um a ban al 7 i t e-i : V c i: M aco u a t . . 188 8 . o n D n I ase C . Ca n Pl . 20 Bn d ” neo a y n , ( . y ala ma ro ti xi De -t ic s s ta a . d on . A A 1898 . Base C g I n . m ( x ' ' “ r i lean bn. ac ir N o t C ta xi o i1 i 1896 . Scn . n g g ) ﬁ pp , ' ala ma rostis m ia a ntlm ull l t IT fro m Princ e . A A . 1898 . e Rw B . s . e us C g y . h p . gn n yp A ber t Sas ka tc he wa n M aco n l , . Cata a roﬂ i urin -m r v m -um: t bbins on C . e g M ‘l( d a ar . in e S e , Rh odo ra (Bui l d tea rne y ) al a ma rosti hi o - v br - -t 9 f o m St a its d s ar . a i bin 56 30 . T e r r ice S eb s Rhodora 32 : . 1 C g pp . { yp Be le sle ue bec Fm ald b‘ Ve om! l I . Q . n

R ese bl n C ine x a nsa o n the a ve r e sm al ler li ule 1- 3 mm lo blades sm oo th or m i g . p , ag ; g . ng ;

nea so l ax and so ft narrow o fte n filiform anicl e on the avera e sm al ler lum es ra th er rly , , , ; p g ; g

nn in x u e o f en sm o o thi er te t r , t th

y r O C A TY T e L L I : Europ e . D S I TI m ba ” ti d t la to Alas ka and aou th n rd R B . a sh o res and we lac es ree n nd I T U ON M , y . p . G . ' ' t aine rm o n N e w Yor k M ic hi a n Wisco nnn Co lorad o Utah and O re o n also am ber!) OM , Ve t . , g , . . . g ; u ia E ras .

' ' l USm A r IO N H c H LL : hc . an. 640 it f. .

34 . i . al Bot. al f am a s is crassi lumi s Th in . Wa s . C gro t g urber , S t C

2 : 28 1 . 1 8 80 .

' De e uxia cr as i l u i -I 8 883 i i t ts Th urb . r m r a se i . 1 le ( n s h r mm S . 2 . . BM on C a y g V y . G U ( g ) ala ma rosti s ! ( le v i a n a r . a ri lu n ir o n . a u r 53 . Base d C u N . A m 2 : 3 C g g g Ca m s . ( l a m i h b g s T ur e r . )

C ul mi; erec Iabrou ra r i - 40 cm wi cree h izo m es sheaths la s ther d . al l th i r t , g ig , t , p ng ; g

b ous the lowe o e w — t o r so mewha la i n som e ha a e ul e 1 . lo l s ﬂa r , r v r pp g , t p p ry ; l ig 2 mm ng ; b ade t

i vo u smo o h e xce th s - w e anicl e narrow e scab ous mar in ﬁrm abou 4 5 mm . d in l te , t , p t r g , , t : p ,

dense s ikelik dul l- r le — o m e m u 2 5 cm . l lum es o va e a ther abru tl a u ina , p e , p p , ng ; g t , r p y c t . herulous ﬁrm or almos nd r — broad u a e 3 4 m m . o lemm a abou as lon as the um es , t i t . l ng ; t g gl . , o b use to abru l o i ed th e a wn a ac hed abou the m ddle strai h abo u as lon as th e t p t y p nt , t t t i , g t . t g ART 7 1 93 7 O AC A 5 1 5 P , ] P E E

- l l m m a the callus airs a u a ab u 3 m m . lo n ra h ill a 1 m m . o the a rs anch i e , h b nd n t , o t g ; c mg, h i r ng to th e apex o f th e l em m a .

: endocino ou a if r ia Bota nic 47 66 T ires w ca u rr M C nty . C l o n ( . ’ Dm vno x : S a s il are a cou e s a Was hi n and a rnia end ci w mp y o . r . V n v r I l nd . ngto . C lifo M o no

County ) .

t 7 . . H . M A . r s . De . o . h an. N . S. r A ILL USTRA TIO S : Bull . U p g g f itc c f

i . e os R th Fl . . : . 7 . 5 . l a r stis e Germ l 34 1 88 3 Ca am g o pig (L ) o ,

7 . 8 1 . 1 53 A m do epigeios L . Sp . Pl . 7 r ica K . Koc innae a 2 1 : 38 . l Sl S . Ty e from o r ia a n a eo L m Tiﬂi s . Calu c p p s u g g h . ( p Ge g m l. e r ) o n 1 S53 . (Based C georgwa C Koch

l ama rostis en t i ce“ er na d Rho dora 30 : 203 . 1928 . T e fr om Ba s ab e ou M ass a Ca g F l . ( yp rn t l C nty . r -t ch usetts . F e old

— wi ul s sl n er erec 1 I . S . al th cr e i hiz m es she a h s la r us l ul C m e d , t, m t l , e p ng r o ; t g b o ; ig e abou t — w mm blad es lo r ﬁa 5 m m . 4 m m . lo n a ther a e sca ous t i a icl ale rec or g , r ; e ng t . b . , de ; p n e p , e t somewha nod i na rrow a ther em e mo re or ss obed arr wed a t the su i 20 —3 0 t d ng , , r d , le l , n o mm t , be ua na rrowl - — l su anceol a e a tenua e 5 m m . lo cm . lo n u es e m a s r g ; g m q l . y l t t t , ng ; l m t ongly 2 x toothed a t the opaque ap e , 2 lo as the lumes somewha bent at the mid le a nus - ai s ra her c o us abou l ng g . t d ; h r t op i , t as ong as the glumes ; rach illa obsolete .

Dm m m o N : Sand wo mb in dem e colonies arv-de b M m e h m e tts L sl a nd said to y . H . ; ong I ; es tabl s hed als o a t l oucester M m c h us etts and in M on omer u Penns l ania a i e 2; i G . tg y Co nty . y v ; n t v

. N J ILL USTRA U O N : Hi tc h c . M an. f .

R I . . I. . . 1 1 4 . AG O ST S L Sp P 6 1 1 7 5 3

9 l 5 . t . . : i F u n . Pl 2 4 e t .d ol on . Vilfa Ada ns . (S ec ed yp e . A fm L ) ' 9 - 5 . T Pl . 2 4 1 7 63 . am . i P . A is S m o . A m Adm . ( yp e . p a L ) 1805 ’ ne c t 1 . a ire l t Deca dd io Bm tnrd Fl M Lo 28 . 809 . Se c ed t e A m m l . ( e y p . m q . )

1 - 28 . 820 . t A t F und . A m t e i A m p oc i r Trin. g s . 1 (Se lec ted yp . n n: Spica u nti l . ) 82 N ata-m 1 5 . (Typ e . A m i: en ch nouies ﬁll ) 90 i ll 1 1 . T i ill . A ( yp e . A m s m ci c )

a M e . on . U a 9 0 r al: . . 1 t st Herb . 1 3 58 . 1 . A o Griseb Sc ib n tr . . N t. T e os is Pente c ( ) r n C 5 : ( yp . g

M Trin. )

Annua l or usuall ere nnial delica e o r modera el tall am es wi th labrous culms ﬂa y p . t t y n . g . t m m eﬁ mes mvd u te scubm m N ades m d open m m ntm ted mnk les d m anwikd e ts

S ikele ts l -ﬁo wered disarticula tin abo ve the lum es the rad xilla usuall no t o lo ed p . g g . y p r ng ; lum es e ual or nearl so ac u te acumina e o r som e times am ointed carina e usuall g q y , , t , p . t . y kee l and t o n scabrous on tbe som c imes tbe ho c k ﬂem m a obtuse , usuall y sho rter and thi nner in texture tha n the lum es a wnless o r do rsa ll owned often hair on the allus a lea usuall g , y , y c : p y

- v w er than the l m m 2 ner ed in onl a fe s c i l snmll nies or obsole e . sho r t e , y pe es. usual y and p en t '

- i w h nas cd os m i hi A . e s e ies A . n s desc be d 1 2 s c of c T) p p c . n j L (Lin e u r pe ies. 1 M orti m is selec ted as t\ e . f ! p

' ﬂ d m e t 1ees t hs ll as lo n the 1e m m e Pd ene ent. 2 . ng .

Lemm a pu bes cent.

m a nn ed : plunts ennunl . n k w Pa nic le ope . tbe brnnc bes na e d belo na rro w ac int o Panic le . contr ted . erru pted . tbe bm nc hes or s m e

ot tbern tlorite ro us trom bns e . wnle ss u Lem ma e ; p nts pereo nia l .

Pm lo nn tio n o t the rac hilla nenrly n lo ng ns tbe lem m s . m a the m c billn oo t more tban ha ll m long u the L m d i l i 5 5 . A . . Sp ike le ts 1 mm . lo ng . m an“ 6 A Thur . Spikele ts 2 mm lo ng . . .

7 . A . in im . Spikele ts 3 mm . long . m 5 1 4 NORTH AM ERI CA N F LORA [VOLUME 1 7

— ﬁr m ﬂat o r s u s a us u 4 6 . a es a si stent ; lig le mm long ; bl d , r ther rigid , loo el y invol te , very c bro , — — a a s or ss 5 1 5 . a s s a us 2 4 mm . wide ; p nicle n rrow , den e , more le lobed , cm lon g , the xi c bro , the — a s s and a s a us 1 2 . o r s s br nche mo tl y erect , crowded overl pping , ver y c bro , cm long ometime — — m u s a ru a u a s a ul us 3 4 . a as as 3 4 cm . long ; gl me b ptl y c min te , c ber o , mm long ; lem long the

s ab us awn a a a u s a or a so a u as as glu mes , c ro , the tt ched bo t the middle , tr ight ne rly , bo t long the

- u s a us a s a to u s a s a a . s of a s gl me , the c ll h ir h lf three fo rth long ; r chill mm lon g , ome the h ir m rea ching the tip o f the lem a .

M E L O C A L I TY : Ya n Sartwell . Penn , New York ( ) ' : a s a s s a nd a s a A a s a and s u a DISTRIBUTION Me dow , m r he , wet pl ce , Greenl nd to l k , o thw rd to

a s ss u eb as a a nd a r a . M ine , New York , Illinoi , Mi o ri , N r k , New Mexico , C lifo ni

M a n 63 7 . A r . A ro t 1 . 487 H . . . . . s . 7 : ILLUSTRATIONS : B u ll . U . S Dep g g f ; itchc f

l . A r . A ro t. l l 3 7 . 1 barbu ata a ul . . . s : 898 . C a a a os s inex ansa var . S l m gr ti p Ke rney , B l U Dept g g u s bus ub ru b s a s a s ub u a wn u bs C lm ro t , p e lent elow the node ; coll r of he th p er lent ; min te or o olete ; - P er a u s ai s a as as a . O : as u as c ll h r ne rly long the lemm TYPE L CALITY M on Co nty , W hington ( ip a DISTRIBUTION : Known only from the type loc lity . n - a 2 a i x bb s 3 : 5 1 . 1 930 . Cal am a r os i s ine a sa var . o ae a ae S g t p n v ngli te in , Rhodor P n cle more w b a a l : u s a W ll a m s ﬂ s b . s loo ely o ered , the longer r nche n ked e ow TYPE LOCALITY Mo nt De ert , M ine ( i i ° R n a a a nd 59 a d : s . in DISTRIBUTION Wet gr nite ledge , M ine Vermont m 1 Ca a a os s a ni A A o 1 1 : 3 7 . 898 s b s : t . . r . r s NOTE l gr ti c lifor ca Kearney (B ull . U S . Dep . g g ) re em le i n x n a d iﬁ e in a a a nd a us - a s . e a s r a nd s s s a s . C p , g in h ving longer omewh t loo er p nicle horter c ll h ir a a a a a L em m n 444 : S . s o TYPE LOCALITY ierr Nev d , C liforni Known only from the type pecimen ( in

M an. . 63 9 . m a b a s . ILLUSTRATION : H itchc . f It y e distinct specie

3 3 . al i Fl n ch e . . am a s s ne l h r . ec a h art . M e e C gro t g t (E ) G , y r S rb 1 4 1 : 9 . 7 99 . Wett .

A rundo ne lect a h rh . B it 6 1 g E e r . : 3 7 . 1 7 9 1 . D e euxi a ne l ta u v ec l : 7 1 829 n o lect h h . R e . a . n 6 . . as A ru d e a r y g K nth , Gr m (B ed on g E ) D e eux l t ia ne ec a var . r l 1 1 s a c 1 7 . 1 886 . s S b . . G a z . : 5 y g g i i cri n Tweedy , Bot (Type from Yellow tone a Tweed P rk , y D e euxi a vancouveren 1 4 a si s as u . b u 5 : 8 . 1 888 . es y V ey , B ll Torrey Cl (Type from Fort George , J m B a u b M a cou n y , Q e ec , in D e euxi a ne lect a l 4 v r b ev o a as a a n. P I 1 a u C t. C a . 2 : 206 . 888 . y g . r if i V ey ; M co n , (Type from Pelly

a s s D awson. B nk , Northwe t Territory , ) D e euxi a bore l 4 a u a t a n. P I . 2 : 207 1 D n o u erensi s as . s a C . C . 888 . as . va c v y i M co n , (B ed on V ey ) alam a rost s xi la ora a u . . A A D e eux a S . r . ro s t. l l 34 1 898 . as i . : C g i ﬂ Ke rney , B ll U Dep g g . (B ed on y ne lecta r l s b . o a c S . laxi r a 1 896 . g g i i cri n ) Not C ﬂ Philippi , alam a rost m nth a s cra A A t 1 1 3 6 . 1 898 . a u . . S . . r . ros . : C g i i Ke rney , B ll U Dep g g (Type from Prince A b Sa s a a M a coun l ert , k tchew n , alam a rosti s n l t a m i crantha e nth a 2 1 930 . as . ec a v r . m i cra a S bb s 3 : 5 5 . C g g te in , Rhodor (B ed on C a Ke rney . ) al am a r t l a on os s var . l a a brevi i i s bb a 2 1 30 . S s c s 3 : 56 . 9 C g i pp i p Ste in , Rhodor (Type from tr it of s u b F ernald 59° W e and Belle I le , Q e ec , i g

es — C . i nex nsa r a on a a s a u 1 3 . a s s o R embling p , the ver ge m ller ; l ig le mm long ; bl de mooth a so l ax and s a nﬁlifo rm a o n a a s al u s a ne rly , oft , n rrow , ofte ; p nicle the ver ge m ler ; gl me r ther

u s thinner in text re , often mooth .

u TYPE LOCALITY : E rope . ' : a s s sa s s a nd a s G re e nl and to A as a a nd s u a DISTRIBUTION M r he , ndy hore , wet pl ce , l k , o thw rd a a s s a a and a s M ine , Vermont , New York , Michig n , Wi con in , Color do , Ut h , Oregon ; l o northern I r !uras a . H M a n : 640 . ILLUSTRATION itchc . . f.

l 34 . a m a i i i li a f. s s ass lum Th . a cr s e in . a s . C gro t g urb r , S W t B ot C

2 : 2 1 1 8 0 . 8 . 8

D e euxi a cr as i l um is as 2 s 8 1 . l r r l u m s u b as s s . S . 883 as a a m a ost s c assi i y g V ey , Gr e U . (B ed on C g i g Th r a la m a rost s ne lecta va l r . crass i u m i s a A crassi m . 2 : 3 5 3 . 896 . as . as s s . 1 C g i g g Be l , Gr e N (B ed on C la m g i s Thu rber . )

C u s 1 — 40 l a us a 5 . a s s a s a lm erect , gl bro , r ther rigid , cm t ll , with creeping rhizome ; he th g

us a a a — r a s ul 1 2 . a s fla t o s bro , the lower overl ppin g , omewh t p pery ; lig e mm long ; bl de omewh t u — s s a us a s a u 4 5 . a a invol te , mooth , except the c bro m rgin , firm , bo t mm wide ; p nicle n rrow , — s s i ul - u 2 5 . u s a a a u a u a sea den e , pikel ke , d l p rple , cm long ; gl me ov te , r ther br ptly c min te , berulo — us o r a s u a 3 4 . a a u as as u s a , firm lmo t ind r te , mm long ; lemm bo t long the gl me , bro d ,

us a u wn a a a u s as a u . s a a a obt e to br ptly pointed , the tt ched bo t the middle tr ight , bo t long the A RT 7 1 93 7 AC A 5 1 5 P , ] PO E E

- mm a a us a s a u a a u 3 . a a 1 . a s lemm , the c ll h ir b nd nt , bo t mm long ; r chill long, the h ir reaching o f a to the apex the lemm .

: u a a Bolander 4 7 66 TYPE LOCALITY Mendocino Co nty , C liforni ( , : S a s a a u s a a s and a a DISTRIBUTION w mpy oil , r re , V nco ver I l nd , W hington , C liforni (Mendocino

County) . A 1 2 H M A r ost 7 : . 4 . an 6 2 r . 4 ILLUSTRATIONS : Bull . U . S . Dep . g . g f ; itchc . f. .

i R h F1. l a is e eio . 4 m s s e m . 1 : 3 . 1 7 8 8 . 3 5 . a a C gro t p g (L ) ot , G r

1 7 5 3 . P I 8 1 . A rundo epigeios L . Sp . . a 2 1 : 387 1 84 a . 8 . a uss a a iﬂis a la m a rost s eor ca . L T . C g i g gi K Koch , inn e (Type from Georgi [R i ] , ne r )

i ca b . 4 433 5 i ei os var . eor . ss . : . 18 3 . as eor ro t e ca . . Calam ag s i s p g g g Lede Fl Ro (B ed on C . g gi C Koch

F d F e m ald a 3 5 : 65 . i e , Rhodor ~ alam a rost s a ren cola F e m ald a 3 0 : 203 . 1 928 . a s ab u as sa C g i i , Rhodor (Type from B rn t le Co nty , M n d c h use tts , F er al

ul s s 1 . a s s a s a us u a u C m lender , erect , m t ll , with creeping rhizome ; he th gl bro ; lig le bo t

ﬁ a 4— a u 5 . a 4 . a s a s a s t a o r mm long , r ther ﬁrm ; bl de elong te , c bro , , mm wide ; p nicle p le , erect s a a a s or ss a a t sum 20—30 omewh t nodding , n rrow , r ther den e , more le lobed , n rrowed the mit ,

- — u s su ua a a a a ua 4 5 . a s 2 cm . long ; gl me beq l , n rrowl y l nceol te tten te , mm long ; lemm trongly w a t a u a 2 . a n a a u as toothed the op q e pex , mm long , the from little below the middle , bo t

as u s s a a t a us - a s a us a u as as long the gl me , omewh t bent the middle ; c ll h ir r ther copio , bo t lon g the glumes ; r ach ill a obsolete .

TYPE LOCALITY : Eu rope . : Sa s s s H a ass a u s s L s a sa DISTRIBUTION ndy wood in den e colonie , rwich , M ch ett ; ong I l nd ; id to be s ab s a ls a t u s ass a us s and u s a a a e t li hed o Glo ce ter , M ch ett in Montgomery Co nty , Penn ylv ni ; n tive a of E uras i . 3 M a n. . 64 . ILLUSTRATION : H itchc . f

4 R I G O T . . PI. 6 1 . 1 5 3 . 1 1 . A S S L Sp 7

m . . 2 : 495 . 1 7 63 . A . s tolo n r F a Se e a . V l a A a s . i f d n Pl ( lected type , if L ) — 7 63 . A ro t e m 2 495 . nl F a . . : 1 s i s S a ve i . A er A a s . p a d n Pl (Type , g pi L )

F l . A m 1 : 4 1 . 1 803 . T Tr cho di um . . . . decum bens . i Michx Bor (Type , )

- - D ecandoli a as a . a e t L 28 . 1 809 . S A rostis stolon era B t rd , Fl M ine oire ( elected type , g if L 1 8 12 A ro ti n A rost. 5 . . s s ca ina . A ra ulus B e au v . L g g (Type , g ) A o t 1 2 82 - A nem a rostis . u . r s . 8 . 1 0 . S A rosti s S ca vent . g Trin F nd g ( elected type , g p i i L ) 2 st ll 4 . 1 8 5 . A ro i s a a chno de . a R af e o . N otonem . N s E g (Type , g r i ) n 4 2 l l l A resti s uba F l . P re . : 8 . 90 . A rosti s vert c lla ta . g B ni , y (Type , g i i Vill ) r t b . b . a t H 1 3 . 1 9 1 0 A os is t s . . . 5 8 . P oda ros is G ri e S . S N . b . : g ( ) cri n Merr Contr U er (Type , g

a equ ivalvi s Trin . )

A ua or usua a a o r a a ass s a u s u s ﬂat nn l ll y p erenni l , delic te moder tely t ll gr e , with gl bro c lm ,

u s a us a s a n o r sometimes i nvol te c bro bl de d open o r contr acted p a nicles of sm all spikelets .

el s l - ﬁ owered sa u a a u s a hi a usua no t Sp ik et , di rtic l ting bove the gl me , the r c ll lly prolonged ;

u s ua o r a so a u a u a o r s s awn— a a usua gl me eq l ne rly , c te , c min te , ometime pointed , c rin te , lly s a us on a nd s s o n a a us usu a s and in c bro the keel ometime the b ck ; lemm obt e , lly horter thinner

u a u s a ss o r sal a a o n a us a a usua text re th n the gl me , wnle dor ly wned , often h iry the c ll ; p le lly ' 2— h o rter th an a a s s usua s a and ss or s . s the lemm , nerved in onl y few pecie , lly m ll nervele ob olete

ti s st l er r s ni a d of A . T s s A o o o . a us s 1 2 s s ype pecie , g f L (Linn e e cribe d pecie , which stol onifera is selected as t ype . )

a a 2 - e a t as a a s as a P le evident , n rved . le t h lf long the lemm . b a a Rachilla prolonged ehind the p le . b a u s . A . retro ra cta . L emm p e cent l . f

Lemm a glabrous . a a a Lem ma awned ; pl nts nnu l . a b a s a b P nicle open , the r nche n ked elow . a a a u b a s s P nicle n rrow, contr cted , interr pted , the r nche or ome ﬂ orifero us b of them from ase . a ss a L em m awnle ; pl nts perenni al . a a a a Prolong tion of the r chill nea rly as long as the lemm . Prolonga tion of the ra chilla not more tha n h alf as long as the a lemm . m nn L i eb a i . A . 5 . Spikelets mm . long .

. n 2 6 . A Th urber i a a . Spikelets mm long . .

3 A e u ivalvi s . s 7 . . a Spikelet mm long . . q R a a chill not prolonged . NORTH AMERI CAN F LORA [VOLUME 1 7

u s and ba a a b Glumes scabro on the keel on the ck ; p nicle contr cted , lo ed ,

a . 8 A . verti ci lla la . the short branches densely verticill te . a us ab us a s Glumes s c bro on the keel only , or gl ro ; p nicle open or , if con

a b w s a b a s . tr cted , not lo ed nor ith den ely verticill te r nche

a a a a . 9 . A Ro e . a a f us b s s . s i P nicle open , r ther di f e , the r nchlet div ric tely pre ding a a bu t diﬁ use b a s Panicle contr cted or r ther open , not , the r nchlet

not divarica tely s pre ading .

1 0 . A . hum i li s a a a s . Pl ants tufted ; dw rf lpine specie . s s s u b bas s a s s Plants with rhizome , tolon , or dec m ent e ; t ller pecie of low a nd medi um altitudes . a a a t bas a and Branches of p nicle n ked e , the p nicle open deli - a u as u as 2 . u a s ss c te ; lig le m ch mm long on c lm le ve , le

a s . 1 1 . A . tenu i s tha n 1 mm . on the innov tion . Branches of panicle or some of them ﬂ oriferou s from nea r

bas e ; ligule as much as 6 mm . long . a th e b a s as s s P nicle open , r nche cending ; no long tolon

developed . a a C ulms decumbent t bas e ; rhizomes w nting .

Culms erect ; rhizomes present . Cu lm s producing ra ther s tout creeping leafy s tolons . a a b a es a ss s s P nicle contr cted , the r nch ppre ed ; long tolon u b at as developed in isolated pla nts ; culms dec m ent b e . a a bs a u ss s a a as u as as P le o olete or min te nervele c le , r rely m ch one third long a a s the lemm . a — Plants ann ual ; lemm with a slender awn 5 1 0 mm . long . A wn ﬁ e xu u s u as a s o ; s o the tern s t te . w A n s tra ight ; Pa ciﬁc coas t . — a a Spikelets 5 6 mm . long ; lemm wned from the middle . a a b Spikelets abou t mm . long ; lemm wned elow the tip . a s a as a a ss a wn s u Pl nt perenni l ; lemm wned or wnle , the when pre ent not m ch s ex erted . a b s s A e da Pl nts sprea ding y creeping rhizome (tho e of l pi short) . a l — 2 H a irs a t bas e of lemm mm . long .

H a irs a t bas e of lemm a minu te or wa nting . a a s Rhizomes short ; lpine tufted pl nt . and s Rhizomes long lender .

Pa nicle spikelike .

P anicle open . —1 5 diﬁ se a 2— 6 a 1 0 . u b a s P nicle cm long , not , le fy , the l de n s . 22 A . di e oe si . mm . wide g f a s a 1 5 . a us P nicle mo tly more th n cm long , r ther di f e ; a s s u us b a s usua a le ve incon pic o , the l de lly not more th n

23 . u b e en . A s r s . 1 mm . wide . p a bu t s s s s u s s s s . Pl nt ce pito e , witho t rhizome , tolon ometime developed a a a a t as s th e b a s P nicle n rrow , contr cted , le t ome of lower r nche - s pikelet bea ring from near the base . — l 2 b a u 24 . A . Blasda ei . a s 4 . s . P nicle trict , cm long ; l de invol te a a bu t s a nd s usua t a 4 P nicle n rrow not trict pikelike , lly more h n

cm . long . a ur as as a P ale one fo th to one third long lemm . a s s ba sa ﬁ lifo rm u th e b a s the L e ve mo tly l , invol te , l de of

l ti eri . ﬁ a 2 A . P i u at 1 . 5 . c lm , if , not more th n mm wide . — L a s s u b a s ﬁ a t 1 1 0 . e ve mo tly from the c lm , the l de , mm w ide . a s s s u s P nicle from loo e to den e , if den e in glomer le or u u s s interr pted ; gl me , except the keel , mooth to a u u s c ber lo s . a a nd a us P nicle dens e spikelike ; glumes very s c bro . a P ale wa nting or minute . a a ss Lemm wnle . a Le mm awned .

Spikelets 2 mm . long .

Spikelets 3 mm . long . a s s s a P nicle conden ed or pikelike , or omewh t inter d s 3— 7 a u ab u r u te . s s . p , mo tly cm long ; c ll gl ro bu t a — a a s 6 1 5 . P nicle n rrow r ther loo e , cm long ; - ca llus short pilos e .

a a b a s a a t bas . P nicle open , if n rrow the r nche n ked e a d ifl us e a wn a a a P nicle ; of lemm rising ne r base . a ffus as a ss P nicle open , if di e the lemm wnle . a d ifi use s ab us a a b a s b a P nicle very , the c ro c pill ry r nche r nch in ab u ab b a s b a g o t the middle or ove , the r nchlet e ring s pikelets towa rd the ends (branches shorter a nd more a n va m n t em l a i e a a . 33 . A . hi a is . div ric te r . g i ) a d i fl use b a b a P nicle not the r nches r nching below the middle . L a a a ss ua s u emm wned ( wnle individ l occ r) . S ab u 2 n n 34 . A . ca a . pikelets o t mm . long . i — S s 3 . pikelet mm long . u — n i l u . lo i l . 5 8 35 . A . a L ig le mm lon g . g g u — Lig le 1 2 m m . long .

5 1 8 NORTH A M ERI CA N FLORA [VOLUME 1 7

- - v n B a v . n 4 1 867 . as era ca e li e u H au s P re . 7 . S ost s ventosa u a . A gr i D l c , Fl te y (B ed on Ap pi ) n c - venl 1 1 43 . 1 87 3 . as A em a rosli s S i a i 3 . : t s A nem a roslis S . . . A gros i g yme , E ngl Bot ed (B ed on g p i Tr n . ) - 3 1 1 43 1 87 3 . as A . S i ca nt . . . . : . nem a rosli s s ubs . S ca ve i S E A gros ti s A g p p i yme , ngl Bot ed (B ed on p

venl i L . )

— u s a at as o r a s a us a u 3 - 40 60 cm A nnual ; c lm br nched b e , erect cending , gl bro , bo t noded ,

a us o r s s s u u as u a s 6 . a a t all ; sheath s gl bro ometime lightly ro gh ; lig le m ch mm long , l cer te ; — — b a s s ab u s a u a 5 1 5 . 1 3 . a s o r s l de c ro , c min te , cm long , mm wide ; p nicle oblong , loo e , erect ome — w a 1 0 20 . usua a u a as a s a a wh t nodding ; cm long , lly bo t h lf wide , the br nche c pill ry , horled , o r s a s a a a t as o r a s a s ascending omewh t pre ding , n ked b e , with few hort br nche intermixed ; nd a a u a s a u u a 2 . s s a glu mes a c min te , omewh t neq l , mm long , the ﬁr t horter n rrower ; lemm

a a s s u s a u us s s a awn a about s long the econd gl me , c ber lo , the lender tr ight from below the pex , abou t twice a s long a s the glumes ; palea abou t as long as the lemma ; prolonga tion of the

m . r a chill a less th a n m . long

TYPE LOCALITY : E urope . : u at a s a i a a i a DISTRIBUTION Introd ced few point from M ne to M ryl nd ; Oh o ; Portl nd , Oregon ; a n a ti ve of E u rope a nd Siberi .

A A t. 20 . 63 u . A 2 : . 69 . 8: . ro r 7 7 i u . S . r . s : . . S. . ILLUSTRATIONS : B ll U . Dep g g f ; B ll U Dep g f ; Br tt 1 6 1 11 1 . . 2 . . 5 . n . F Brow , ed f

1 1 . 2 . 7 5 9 . s i s in e a . . N at. e d . 0 8 7 3 . Agro t t rrupt L Syst

B A 1 1 1 1 2 A o 3 5 . 1 8 . as r sti s i nterru ta . A ero nterru ta e auv . ro st. L p i p g , (B ed on g p )

nt r A o 1 2 1 2 r t t . u . r st. 9 . 8 0 . as A osti s n erru a A nem agro sl i s i e r upta Trin . F nd g (B ed on g i p L )

n a 4 . 1 7 7 . 1 85 . A rosti s nterru ta M uhlenbergi a interrupta Steud . Sy . Gr m . (B as ed on g i p L )

- n u ta . n r u . nl i s ubs . te r ta H . u . . 432 1 87 0 A i terr t s ca ve as . A gros i Spi p i p ook f St d Fl . . (B ed on p L )

t A nem a rosl s ubs . nterru ta . 1 1 4 3 as A . 4 . . 3 . : . 1 87 A ros s i s i S . g i g p p yme , Engl Bot ed (B ed on

i nterrupta L . )

- n erru a A m nterru ta a 2 : 35 7 1 6 . a A rosti s i A er a S ca wenl v r . t ta as s s . . . 89 s p p i i i p Be l , Gr e N (B ed on g p

L . ) F l P 4 nter u t u a . re n. : 2 8 1 90 a nter u t . b . r A rest s r a 9 1 . s A rost s a g i i p B ni , y (B ed on g i i p L )

A ua u s usua u a at as o r ul a at as a us nn l ; c lm lly m ch br nched b e , erect genic te b e , gl bro ,

- — — 0 0 . a a lon b1ades s a u 2 3 2 6 s s a us u a u 2 4 . s or noded , cm t ll ; he th gl bro ; lig le thin , c te , mm g ; c bro ,

s ss a 5 . a u 1 . W a a a s or s w a mo tl y le th n cm long , bo t mm ide ; p nicle n rrow , r ther den e , erect ome h t 5 — 1 u 5 . a u 1 . a s w as o r nodding , interr pted , cm long , bo t cm wide , the br nche horled , cending

f ﬂ rif r a ss 1 . s o o e ous to as s s a al s ppre ed , cm long , ome them b e ; pikelet green , the l ter pedicel

a u 1 . u s a u a s a us o n s a u ua s bo t mm long ; gl me c min te , c bro the keel , omewh t neq l , the econd — 3 . s a a s a ul us a a u 2 . a us omewh t longer , mm lon g ; lemm c ber o bove , bo t mm long , the c ll u s awn f th e a s a a u 1 . a o min tel y pilo e , the from below the pex , tr ight , bo t cm long ; p rolong tion

a a a u . r chill bo t mm long .

TYPE LOCALITY : Eu rope .

: u ss u St. L u s a s a nd s DISTRIBUTION Introd ced in Mi o ri ( o i ) , Id ho (Nezperce Fore t) , Briti h u b a a a a Col m i (Ok nog n) ; n tive of western E urope . : H s a A t 3 : l H . M an 65 B . us r . 8 . 3 . 4 . . ILLUSTRATIONS o t , Gr m p ; itchc f

i 4 . s s b ill ta a i 1 2 ac a O e terr . . Ze ts . 5 2 : 5 9 . 90 Agro t H ck . s B ot

— ul - a s s s s a us l o r 2 a as 1 5 30 . ta Perenni l ; c m lender , ce pito e , erect , gl bro , noded ne r b e , cm ll ; a s s a s s u — a a s s a s a us u a u 2 3 . a s le ve mo tl y in hor t b l cl ter , the he th gl bro ; lig le c te , mm long ; bl de u s a u s a us a s o r s a u us s no t a 6 . convol te , et ceo , gl bro except the m rgin , c ber lo , mo tly more th n cm — u u - b a s at o r a a 5 8 . long , the pper c lm l de horter , below the middle ; p nicle ov te , open , cm long ,

a s and a s a us a s 3— 5 a as s a s a ﬂexuous the xi br nche gl bro , the br nche in f cicle , pre ding , omewh t , br a nched abou t the middle ; spikelets o n pedicel s (br a nches o f the second order) longer th a n

s s u s a a - a u a u s u s a them elve ; gl me l nceol te oblong , c te , gl bro incl ding the omewh t thickened keel — 2 . a ab us a s a u a a a s n as a mm long ; lemm gl ro , little horter th n the gl mes ; p le lo g the lemm , a of a a s a as as a a to a . prolon g tion the r chill lender , ne rly lon g the lemm , t pering ﬁne p oint

Y : la u 3 1 00 s s a a P ill i er T PE LOCALITY Cerro de M erte . meter , Co t Ric ( : a a s s a a DISTRIBUTION P r mo , Co t Ric . A T 7 1 93 7 AC A P R , ] PO E E 5 19

i i i L ebm ann rn. 5 . s s i c h c o c Agro t (Fou ) H t k .

L m nni u . . . a . 9 7 1 886 . A pera i eb a Fo rn Mex Pl Gr m .

a u s s s a us ﬁne - a a s a t as a s Perenni l , c lm ce pito e , gl bro , with le ved innov tion b e , cending 3 0 u us u u a s 2 . 4 0 . a s a s a a a sa b to cm t ll ; he th c ber lo ; lig le tr nc te , dent te , mm long ; b l l a des subse tace

— - b 3 . 2 o us s u s a us 2 8 . a a , tho e of the c lm c ro , mm wide , g ; a cm lon p nicle r ther n rrow , open , — s u 1 0 1 6 . a s s a s a a t a s a s u s a u s cm long , the br nche lender , c bro , n ked b e , cending ; gl me c ti h , b n a u a a s s a us o . a a u a s r ther bro d , lightly c ro the keel , bo t mm long ; lemm c te , lon g as the

u s a ss a a a a s a a a gl me , wnle ; p le n rrow , little horter th n the lemm ; prolon g tion of the r achill a very

s a . hort , n ked

: a a L i ebm ann TYPE LOCALITY Chin ntl , Mexico (

DISTRIBUTION : St a te of Vera Cruz .

i i l i s Thurber ana ch c . l . . 6 . s . D e . U . Pl . I n Agro t H t B u S p Agr d .

1 . 68 : 23 . 90 5

b a — A r . le r andi i u b a s . a . 1 64 1 6 A rost s H il SO C . 8 8 5 : 1 36 no m en nudum . g i Th r er ; Bol nder , Tr n C lif g , ll b nd 1 866 S as a a H i e ra . . ( ierr , C liforni , ) 3 1 0 5 . 19 9 A rost s utrata b . u . ub 3 6 : . a s u b a g i Ryd B ll Torrey Cl (Type from Yoho V lley , Briti h Col m i , M a coun

a u s s s a u s o r s s u at a s a us 2 Perenni l ; c lm lender , in m ll t ft , erect ometime dec mbent b e , gl bro , — - l r li le ll h ea th s ab ous u a u 6 . o r 3 20 40 . ta s a s s at as noded , cm ; g ; g bo t mm long ; le ve mo tly the b e of no a 1 0 a s s a u us usua t . and 2 w a . u the pl nt , the bl de c ber lo , lly more th n cm long mm ide , the pper

o f u a a w l ax o r s — s a u s 5 8 . mo t bo t the middle the c lm ; p nicle n rro , , more le drooping , cm long , — a s s s a us 2 4 a s - a a u the br nche few , lightl y c bro , in e ch whorl , pikelet be ring from bo t the middle ;

s a o r u 2 . u s a u a us f r spikelet green , p le p rple , mm long ; gl me c te , gl bro except o the minutel y s a u us o f s a a as a s u s us a S- c ber lo tip keel ; lemm ne rl y long the gl me , obt e , f i ntl y nerved , the callus very mi nu tel y pilose ; p a le a about mm . long ; prolongation o f the r achill a about

u u s . mm . lon g , min tely p be cent

: S a a a u as Su ks dor TYPE LOCALITY k m ni Co nty , W hing ton ( f : s a nd s a s a t u a nd u a u s a s DISTRIBUTION Bog moi t pl ce , medi m pper ltit de , Color do to Briti h

u b a a nd s u a S a a a a . Col m i , o thw rd in the ierr s to centr l C liforni P l A r . . . 6 8 : l . 1 . 1 H . . M S . . an. . 11 : u . 6 A ; 5 5 b a s 1 . ILLUSTRATIONS B ll U Dep g Ind p , f itchc f ; r m ,

if 330 . P ac . t. . PI . S f

i . em . uiv lvi s Trin T n. i s ae a M c a . . Pé r s te sb . 7 . Agro t q ( ) r A d St 2 2 1 4 6 : 3 6 . 8 1 V I .

- M m A . uivalvi s . . e . a . t. Péte r . 2 n na va r a e S sb . : 1 7 1 . 1 83 2 A grosti s ca i . q Trin ; Bong c d VI H b . 3 : 7 7 D euxi a ae u ivalvi s . as r . . S . N a t. as s A rosl is ae u i valvi s ey q Benth ; (V ey , Cont U er , ynonym of g q 1 7 4 0 . 1 893 . a s A r 92 . . a s . . : ost s ae ui va lvi s 1 8 . as Trin . ) B D J ck on , Ind Kew (B ed on g i q Trin , 1 1 1 9 1 . b u . o c . : 9 88 a . S a . indica ted by Benth Jo r . L inn ; the com in tion not m de there ) H l b . . . . . N a t. b 1 3 : 5 8 0 v . 1 1 9 . a A rosli s P odagrosl is aequ i a vi s Scri n Merr Contr U S er . (B sed on g

ae ui va lvi s . canina var . q Trin )

— 2 o r 3 - 0 60 m a ul s s s a us 3 c . a s a s a us Perenni l ; c m ce pito e , gl bro , noded , t ll ; he th gl bro ; a u — — 4 6 2 . u a u 2 . a s s s s usua . 1 lig le bo t mm long ; bl de erect , lightly c bro , lly cm lon g , mm wide ; — a a a s usua u 5 1 5 . a s s s a p nicle n rrow , somewh t loo e , lly p rple , cm long , the br nche lender , tho e of 1— as u ua as s s a us s 2 . a a u f cicle neq l i n length , cending , lightl y c bro , mo tly cm long , br nched bo t a s of s s o f s s s i s the middle , the few br nche the econd order being the ped icel the pikelet ; p kelet

u s a us o r s s a u n a a u m a a u 3 . s o bo t mm long ; gl me gl bro , lightl y c bro keel ne r tip , c te ; le m

a u a s as u s a us u s a a a u . a bo t long the gl me , the c ll mi n tel y pilo e ; p le bo t mm long ; prolong tion

u s one o f a a u a as as a . the r chill min tely p be cent , ﬁfth to h lf long the lemm

P : S a A as a . TY E LOCALITY itk , l k : s and m a s A as a s u a a a s a u a s DISTRIBUTION Bog wet e dow , l k o thw rd (r re) in the C c de Mo nt in to

Oregon . A P l . . 6 2 . . r . l u . . 8 : . 1 H . M a n 5 A b R : S g , . ; . . 6 7 ; a s 1 11 . ILLUST ATIONS B ll U Dep Ind p f itchc f r m , 29 P a if. t. . 3 . F 1 . c S f 5 20 NORTH AMERI CAN FL ORA [VOLUME 1 7

I . 1 1 P . D au h 6 . 7 7 9 . ll Pro s . s i s e icill a a i . 8 . Agro t v rt t V p p

s A ver l t 1 7 6 1 805 . a . t ci l a a . n. . : . vert c llata s . S A grosti s a lba var . i i Per y Pl (B ed on i Vill ) 1 1 A vert ll t 1 25 1 8 0 . as . i ci a . am . Su . : . A grostis Villars ii Poir . in L . E ncyc ppl (B ed on aVill ) A ros ti s vert t 1 11 lla a V . 4 1 82 1 8 12 . as c 1 6 1 8 . y A ro s t. lla ta a u . Vi lfa ver ti c i Be g , , (B ed on g i i ) 1 6 a 1 : 1 36 . 1 8 . u ll . . . . G a . s S n u . S A grostis decum be s M hl ; E Bot C (Type from Ch rle ton , o th

m bens H s 1 809 . A . decu Ca rolin a . ) Not o t , 1 2 A . 28 . 8 1 . as A . verti ci lla ta A a s . . vert llata St. n r var . c A grosti s stolo ife a i i m n , Fl gen (B ed on Vill ) ' n a a 1 62 0 1 863 . a b C ount 9 S . 8 : . S as A a . a . A grosti s aqu ati ca B u ckl . Proc . c d Phil (Type from y , Tex )

0 1 as A rosli s vert ci lla ta . 4 2 82 1 9 . P n. ert c llata uba . re : A grestis v i i B ni , Fl y (B ed on g i Vill )

a — o r au us- u s usual u at as s es w t Perenni l , light green gl co green ; c lm ly dec mbent b e , ometim i h

- — and s s s a ul s 2 0 80 cm . a s a s long creeping rooti ng tolon , ever l noded , the ﬂowering c m t ll ; he th

s u s s s a a u u a a s gl abrous or lightly ro ghened , ometime omewh t inﬂ ted ; lig le tr nc te , dent te , ome — — i s s a ul us 2 6 m m . a s s a us a s 5 1 0 . or u ur a t me c ber o , long ; bl de c bro , rel tivel y hor t , cm long in l x i nt — 7 . w i a 3 4 . o r s s a s u a s a a specimen s elong te , mm wide , ometime m ch mm ide ; p n cle contr cted , — - 0 s al at ba s o r u s 3 1 . a s lobed o r verticilla te e peci ly e , light green p rpli h , cm long , the br nche

as s s u sua a 2 . u s us or den sely ﬂowered from the b e ; pikelet lly f lling entire , mm long ; gl me obt e

ba a u s a us o n a and a 1 . a ss u a and at rely c te , c bro b ck keel ; lemm mm long , wnle , tr nc te toothed a pex ; pa lea nearly as long as the lemm a .

a T YPE LOCALITY : Fr nce . : s u a t a u s s a a a s as DISTRIBUTION Moi t g ro nd low ltit de , e peci lly long irrig tion ditche , Tex to al a and a s u a and as b a as a t a A a s C iforni , northw rd to o thern Ut h W hington ; on ll t few tl ntic port ; introduced in A merica sou thward thr ou gh the drier p arts to Argentina ; n a tive of the wa rmer parts of the E as tern H emi s phere . 1 3 u . . A . A ro st. 7 : . 48 u A 6 r 4 . I c . l ...... r . ILLUSTRATIONS : Trin . p ; B ll U S Dep g g f ; B ll U S Dep g

P a c if t. 3 1 H . M an. 65 8 . . 3 . . 2 A a s . . S 5 . . b Pl . . 6 8 : l . ; Ind p f ; r m , Ill Fl f itchc f

ll 81 e . . . . D e . A . s i s R s ei c i n. r 9 . Agro t o S r b M rr B u U S p g

r . 1 1 A g o st 90 .

a u s a us a n u a as a u 3 - a s s l Perenni l ; c l m gl bro , erect from ge ic l te b e , bo t noded ; le ve mo t y — asal s a s a us u us 2 . a s a u a s a us 5 8 . b , the he th gl bro ; lig le obt e , mm long ; bl de c min te , c bro , cm — f us 1 0— 1 5 m — a s a . il 2 3 . c 6 1 2 . ca long, mm wide ; p nicle open , omewh t di f e , l ong , cm wide , the p a a s s a s a s a us w a a a u d l ry br nche pre ding , omewh t c bro , the lo er verticill te , br nched bo t the mid le , — b a l a a - ﬂowere 5 6 . s d s a s o f r o r cm long , the r nch et div ric te , few , the pedicel (br nche the thi d

ur ﬂexuous s a s k s u s a - a a a u fo th order) , mo tl y longer th n the pi elet ; gl me ov te l nceol te , c te ,

i u s a us o n a 2 . a a a u es m n tely c bro the keel ne r tip , mm long ; lemm l ittle Shorter th n the gl m ,

u s awn a a a as ua o r s a n sea obt e , the tt ched ne r the b e , eq ling lightly exceeding the lemm , ﬁ ely us s a o r s a u l a a a u u s a s as bro , tr ight lightl y bent bo t the midd e ; p le bo t three fo r th long the lemm a .

Y : S a a S a Z a a as Rose T PE LOCALITY ierr M dre , t te of c tec Mexico ( : i DISTRIBUTION Known only from the type collect on . A t 2 4 : u . S . . A r . ros . : . 5 . ILLUSTRATION B ll . U Dep g g f

1 i 0 . s s h m ili ll T l 1 : 2 1 . 1 s a se . o e 0 883 . Agro t u V y , B u rr y C ub

a u s s s s l - a as usua not h a 1 5 Perenni l ; c lm ce pito e , lender , erect , noded ne r the b e , lly more t n a . a s s asa s a s a us u us a u 1 . a cm t ll ; le ve mo tl y b l , the he th gl bro ; lig le obt e , bo t mm long ; bl des

ﬂat or a us a u u s o n u su a s a folded , gl bro bene th , min tel y p be cent the pper rf ce , mo tl y less th n — 1 0 . a u 1 . o r ss a a u 1 3 . a l n cm long , bo t mm wi de often le ; p nicle n rrow , p rple , cm long , r re y lo ger , a s a — ss o r s a s a u s 2 . a us the br nche ppre ed omewh t pre ding ; gl me mm long , gl bro excep t the s s ab us s a a as a s u s a ss a a a u two lightly c ro tip of keel ; lemm ne rly long the gl me , wnle ; p le bo t s as a s third lon g the lemm a .

: . A a s as H owell TYPE LOCALITY Mt d m , W hin gton ( : nd a s a a s at a u s as a nd e . DISTRIBUTION Bog lpine me dow high ltit de , Wyoming to W hington Or gon R u 1 : . . S . . A 1 3 l . t. r . . 3 A r . A s . 1 35 : 3 u . S . . ro ILLUST ATIONS B ll U Dep g Bot p ; B ll U . Dep g g

u . . S A r . . . . 6 8 l . : 1 A . 8 . b a s 1 11 PI a if . M an. . 668 . g . ; . P c . St. . 3 32 H . B ll U Dep Pl Ind p f r m , f ; itchc f A T 7 1 93 7 P R , ] POAC EAE 5 2 1

l l . i i s s en s i h . Fl x n . O o . . 1 Agro t t u S bt 3 6 7 94 .

t s lv t H u . s 28 . 1 62 . A o s a ca s . A . 7 a A E . a a gr i y i d Fl n gl (Type from n gl nd ter tologic l form . the ﬂ s ab a a a b ba s a m s oret norm lly elong ted ; the n me rejected , eing ed on on tros ity . )

A o t s vul ar s . P l . 3 . 2 s . . : 1 7 96 . gr i g i With Brit ed (Type from E urope . )

r y A o s t. 1 6 . 1 1 2 . as A t Vil a vul a s au . r 8 ros s vul ar f g i Be g (B ed on g i g i s With . ) a l t A ost s alba v r . s va ca . . 1 : 93 1 24 r S . 8 . as A lva t E . s ca H u s . g i y i mith . ngl Fl (B ed on y i d ) Publi shed b b 5 4 a s b S . u : 0 . b a lvat s s as A . s c new y cri ner (Mem Torrey Cl the i given y i a L . (error for

va s s . . . a 2 7 7 1 86 1 A ro t lba vul ar s s . 9 s . l s a r . . . as vu ar g i g i Co Germ Fl P ri ed (B ed on A . g i s With . ) P ro d ul ar s a . 0 1 rost s ol n era va r v r . o 7 1 A st o . . . . 1 88 . a A u l a r s v s . g i if g i Cel k Fl B hm (B ed on . g i With ) ff l a H e u el . A l olo ni er a var . vu s Not . s f g ri

lb n as . . a H N . . A ost s a a var . m or . S t b . 3 : 7 8 1 892 . as gr i i V ey , Contr U er (Type from W hington ,

D . C . )

a s o r u u a a s s but s Perenni l , with hort , nder c ltiv tion , r ther long tolon , no creeping rhizome ; — us s s 2 r 3 - usua 0 40 u s s a o 2 . a s a s a us c lm lender , gl bro , erect , ce pito e , noded , lly cm t ll ; he th gl bro ; n a s ss a 1 o o . n u s a u u u a s as 2 . lig le tr nc te , the innov tion le th n mm long , the c lm m ch mm long ; — — 5 1 0 . 1 a s o r ss s a us s 3 . a a s bl de more le c bro , mo tly cm long , mm wide ; p nicle open , delic te , mo tly — 5 1 0 . s a s a a s s a s s no t cm long , the lender br nche n ked below , the br nchlet pre ding , the pikelet — u s a u a us s s a us o n 2 3 . a a crowded ; gl me c te , gl bro , the ﬁr t c bro the keel , mm long ; lemm little s a u s a ss a u a a a u a as horter th n the gl me , wnle , the pex min tely toothed ; p le bo t h lf as long the lemm a .

TYPE LOCALITY : E ngland . : E s a u a a nd s ab s f u a a a DISTRIBUTION c ped from c ltiv tion e t li hed from New o ndl nd to M ryl nd , d a s u b a a a a s a a n E u as a . We t Virgini , Michig n ; Briti h Col m i to C liforni ; n tive of r i 66 an . 6 M . . ILLUSTRATION : H itchc . f h A rosli s ca llari s a a s s s as b L . u s s . E NOTE Thi pecie een referred to g p i , rope n pecie not known a i u a a ns a nd u s u a a from A meric . It s c ltiv ted for l w p ttin g green nder the n me Coloni l Bent (formerly called Rhode I sla nd Bent) .

tata P am u s . PI. 7 9 . 1 908 r t A os s e u s var . a s . A ost s s r cta L . gr ti t n i ri ( ) Dr ce , i t Brit g i i Willd 1 7 . A stri ta . . . 1 7 9 . t A a . A r t tr 1 : 3 66 . 1 7 9 . c os i s s cta u . Sp . Pl . Not J F Gmel (Nor h meric ) g i M hl 1 t . 1 1 A s tr c a . . 7 9 1 . a a nd a D c r a . 65 . 8 7 . . a . Tr i es . Gr m Not i J F Gmel (New Engl nd C rolin ) 2 1 V e . : 28 . 1 8 1 7 . as A ro s s t r h m . c s st ta . A ost s c odi u m s tr i ctu R . S . Sy t g (B ed on g i ri Willd ) g i t 1 260 as s A . s r cta u . 825 A . u H . d 1 . 1 809 di us a u . S . S s : sa s ﬂ M hl ; preng y t , ynonym of i M hl Not if o t , , t a tl . 34 . 1 842 . A t a r A ost s vul ar s ar sta a . ass s c o l v t 1 8 1 7 . S ros s a ba r . a s ata nor Mu hl . gr i g i i P rn Gr e g i i a t t 7 1 4 A . a lba v r . ar s a a 1 2 tr 8 8 8 . c . 5 . 8 . 5 as A . s ta A a M an. S . Gr y , Not i penner , (B ed on i Willd ) h 4 1 n . 3 . 1 85 4 . A t cta . 1 1 . r u u r . 7 9 as A osti s s tr cta i s . . s . g i B t e in Miq el . Pl J g Not i J F Gmel (B ed - A rost s alba var . s tr cta 1 6 1 4 . 1 tr tum . . 8 7 7 1 86 . Tr i chodi um s c S ass . . on i R ) g i i Wood , Cl Book ed r t 2 1 24 r t A rosti s tenni s . a sta a a h a 2 6 as A . st c a . : . 9 . as (B ed on i Willd ) g f i Wieg nd , R odor (B ed on l a t P a . A rost s a ustr s v r . tr c H u a M us . 2 A . vul a r s var . a ri s a la m s ta s u . . . S 5 4 : 98 . g i ) g i p i i o e , B ll N Y t te

A rost s ca lla ri s va t t F l xf. . 2 47 4 1 9 1 924 . as A . stri cta . r . ar s a a u . O . . 2 7 . (B ed on Willd ) g i pi i Dr ce , ed

A l r var . ar stata P am . A sti s l r s l ula l a H a i . vu i s ro ca la i s ar . (Presum bly based on . ga i ) g pi itchc Proc

4 1 1 1 2 A a a a er . N at. H i m . r er . 60 . 9 8 . A G b. . So c . as : Biol W h (Type from lex ndri , Virg ni ,

as a a bas awn usu a u a a nd u s . Lemm wned from ne r the e , the lly genic l te exceedin g the gl me TYPE l r v a r ta t a a nd vu is a . : s s A . a s r . a S LOCALITY (of g i cotl nd DISTRIBUTION Field open wood , Nova Scoti a and Qu ebec to North C arolina ; A l as k a to Va ncouver I s la nd ; northern C a liforni a ; al so in

m a a s be a at a s a its a . u . s E rope Thi for ppe r to n tive , le t in the more northerly p rt of r nge

2 i 2 if . . 1 s s s l n e a . PI 6 . 7 5 3 . 1 . Agro t to o r L Sp

l a a - t- 2 1 80 A rosl s tolo n er 9 . a i . t . 9 s s a D ecandoli a s o on e a as e . L if r B t rd , Fl M ine Loire (B ed on g if )

1 1 4 2 1 8 1 2 r s n era . n A t. 6 t t r 8 1 8 . . as A os s olo Vi l a s tolo e a B e a uv . ro s L f if g , , (B ed on g i if )

1 1 24 A olon a . a n r . t lo e a . : 93 . 8 . as . s e A rost s a lba v r . sto S E L g i if mith , ngl Fl (B ed on if r )

l n era . l n n . . 2 1 A s to o i era . e 7 8 . 83 7 . as . L A rost s vul ar s va r . s to o S g i g i f Koch , y Fl G rm (B ed on if )

a u s as a s a as u Perenni l ; c lm cending from pre ding b e , the dec mbent portion rooting in wet — - n 6 . o s s 2 o r 3 20 5 0 . a s a s a us ul as u as oil , mo tly noded , cm t ll ; he th gl bro ; lig e m ch mm long the — — n — a u us 5 1 5 u a s o a s 2 3 . s s a us usual a c lm le ve , the innov tion mm long ; bl de c bro , ly r ther n mero , — — 1 . . r 5 1 3 . a a o u s a 5 cm long , mm wide ; p nicle oblong , p le p rple , omewh t open , cm long , the

a s o r s of s - a a as as or s a br nche , ome them , pikelet be ring from ne r the b e , cending pre ding , the — — us 3 . s a us a 2 u u a 5 s s 3 . s a longer cm long , c bro , n ked below ; pikelet mm long ; gl me c te , gl bro ,

s s ab us o n a s a u s a ss or a a the ﬁr t c ro the keel ; lemm horter th n the gl me , wnle r rel y wned from the

wo b ack ; p alea h alf to t thirds as long as the lemma .

TYPE LOCALITY : E u rope . : s as s a s u a to A as a a nd s u a s DISTRIBUTION Moi t gr y pl ce , Newfo ndl nd l k , o thw rd to New Jer ey in a s a the E as t a nd Oregon in the Wes t ; l o in northern E uras i . 660 H M an. I LLUSTRATION : itchc . f. . 5 22 NORTH AM ERI CAN FLORA [VOLUME 1 7

I 63 . 1 7 5 3 . i l a . P . 1 3 s s a . . Agro t b L Sp

1 8 S u a a . Am 1 : 5 2 . 03 . A grosti s di spa r Michx . Fl . Bor . . (Type from o th C rolin ) - - t 2 1 809 . as A ros s a lba . D eca ndol i a a lba as a F l . a e t Lo r 9 . L B t rd , M ine i e (B ed on g i ) A ro t al ba 1 8 1 2 . as s s . 1 1 46 1 8 1 . L A o st. 6 l a lba B e a uv . r Vi fa g , , (B ed on g i )

2 A r t d s ar i . 1 1 1 . as os s A 1 6 1 47 1 8 . 8 d s a r B ea uv . r o st. Vi lfa i p g , , (B ed on g i i p M chx )

9 2 a . 1 1 8 . 1 8 8 . F H y . S lba va m a or au i 1 . : ost s a r . A gr i i G d n , el (Type from witzerl nd ) - 4 1 as A d s ar . 1 86 1 . 7 7 . 1 86 . a d s ar ass . rost s a lba v r . A g i i p Wood , Cl Book ed (B ed on i p Michx ) a n V rlet 6 . 1 886 . u s s i a . 9 S l i irlel ii ur . . . L A gros s V Fo n Mex Pl Gr m (Type from i Poto i , Mexico ,

1 A ti alba . i l a 4 2 1 6 1 9 5 . as ros s M d . N t. : . L A est s alba L une ll Am . gr i , (B ed on g ) A A 1 1 20 . alba var 1 as . h . a . 2 : 3 5 . 9 . n er a va m a or a . r t s sto lo r . A g os i if j F rwell , Rep Mic c d (B ed on

m ajor Gau din . )

ni era its u sua us u s s s as u A . stolo D iffering from f in lly erect more rob t c lm , ometime m ch

— bas o r u s s a s 5—1 0 as l l . 5 s a meter t ll , the e erect dec mbent , with trong creeping rhizome ; bl de

- a a a b usua s as u a s 20 . a s mm . wide ; p nicle p yr mid l o long , lly reddi h , m ch cm long , the br nche

s a a s s s s a a a a a . pre ding in nthe i , ometime contr cting l ter ; lemm r rel y wned

TYPE LOCALITY : E ur ope . : s a u i a i i n all a s i S a s i n DISTRIBUTION E c ped from c lt v t on the cooler p rt of the Un ted t te , common

r r s a es as a s u s a s a E u as a . the no the n t t , occ ion l in the o thern t te ; n tive of r i

1 . A 7 7 2 : . 67 l . 3 : u . . S . . r . ILLUSTRATIONS B ll U Dep g f , p N 1 : s s s is m u a a s as u s and a s OTE Thi pecie co monly c ltiv ted for me dow , p t re , l wn ; known in the a s u u a United Sta tes as redtop ; appea rs not to be n a tive in A merica . Pl nt growing witho t c ltiv tion n t lon ra A . s t lon er a A . a lba A . n ra a d A . alust a as A . s o e . o ri s are tend to t ke on the pect of if if , , ig , p a a A alustri s h as b u s a th e Closely a llied a nd appea r to intergr de . The n me p een erroneo ly pplied to

Speci es in recent work s . ’ i a n h i a a a s s . . 1 s a ua d s a a NOTE 2 : L innaeus di gno i (Sp . Pl ed ) in deq te origin l pplic tion of the n me A a lba is u a bu t s h is ba um b a a h is s b s ( . ) ncert in , the pecimen in her ri e ring the n me in own cript elong to the species for which the n ame h as been genera lly us ed by E uropea n and A merica n au thor s ever s S s P la ntaru m a 96 a n u ub s since . In the econd edition of the pecie (p ge ) ndo ted reference to thi

species is a dded to the ori gin a l u ncerta in one .

4 i s i i h . i . Pl . . . 2 1 3 1 . 1 7 1 . s 9 Agro t n gra W t Br t ed 3 : 6 .

C u s - u a t as a s a s u a s s a s lm long dec mbent b e , l o with r ther to t le fy tolon , the fertile br nche — - A or 2 0 0 . a a o r lba b as 3 a a s . a ut on cending erect , cm t ll ; p nicle brown d rk brown , open in the

a a s a a s as usua a u se a ver ge more conden ed long the br nche , the b e ll y p rtly incl ded ; otherwi s in

A . alba .

Y a T PE LOCAL ITY : Germ ny . : S es u S u a b b DISTRIBUTION ometim fo nd mixed with o th Germ n ent (creeping ent) , hence m a be a s u a s y con tit ent of l wn grown from imported s eed . H i A a . f . 664 . ILLUSTR TION : itchc . M r

1 5 . s is l l PI. n . 2 7 1 2 Agro t p a u stri s Huds . A g 7 6

A ros t s l m or ha va . l u tr s F l o H u s . . A . 2 . 32 . r a s 1 7 7 8 . as l . A u a str i s H . g i p y p p i d ngl ed (B ed on . p uds ) A rost s m a r t m am 1 : a 6 1 . 1 7 83 . a g i i i L . Encyc . (Type from Fr nce . ) A rost lba va al u tr S s a n. . 1 : 7 6 . 805 l r . s s s . . a ustr s H u s . g i p i Per y Pl 1 (B as ed on A . p i d ) M l u m m a r t m um n a 2 5 1 7 . r l . s a . 8 0 m r 8 as A os i s a i t m am . i i i i Clem E yO V r Vid . (B ed on g i a L ) A rosli s decum bens au 6 8 1 u D c a . n 8 . 1 7 . A . decum be s H s 1 80 es r . 9 . g G din ; M hl . Gr m Not o t , (Type a from Penns ylv ni a . ) Vi l a sto lo n er a va m ar t m a a r . N at. A rr . . . 2 1 46 1 82 1 A r S . . : . . as ost s f if i i F Gr y , Brit Pl (B ed on g i “ m ar t m i i a With . [error for “ A er l u tr a a s s . 2 1 4 1 2 1 A r S . a a . 8 8 . as ost s alus tr s . N t A rr . . : . p p i F Gr y , . Brit Pl (B ed on g i p i With [error for A ro l is a lba v m ar t m a nn 2 ar . 1 H a ov . M a . 1 8 3 : 1 38 . 824 . A m r t . as . a im a g i i G Meyer , g (B ed on i

i am . ) A rost s to lo n er a m n F s a v r . ar m l 7 8 1 . 1 83 . a A r a t . . . 7 m t a S s . a m a m . g i if i i Koch , y Germ (B ed on i i L ) A rost s a lba va de u m ben r . c Am . . 1 1 7 . 1 840 s E a . . b as g i ton Wright , N Bot (Not deﬁnitely ed on A dec um . bens a G udin . ) A rosti s de r es s a as 1 3 : 4 . 1 886 . u . ub 5 a a g p V ey , B ll Torrey Cl (Type from Cle r Creek C nyon , Colo a P atterso n r do , in A rost s exa r l a a va r . stol n era 1 3 as . b : 5 4 . 1 886 u o u u . b a g i if V ey , B ll Torrey Cl (Type from Col m i k d Su s or . River , f ) A rost r l a n F s e b . l . M ts 4 1 9 1 7 . s 5 . as A . exar va r l n r . . e g i p Ryd Rocky (B ed on al a . sto o if a Vas ey ) A ros t s sto lon er a va l r A a 2 r . a u t s a . . 1 3 5 1 . 1 920 a A ol g s . : . s . i if p i F rwell , Rep Mich c d (B ed on p y m or h l u tr . p a var . pa s i s H ud s )

n a s s u s usua u and at a s a s nar Peren i l , with long tolon ; c lm ll y dec mbent rooting b e ; bl de ' a iﬂ r A ni ss a nd st e a . stol o era a a r s or s s rower , more ppre ed , th n in f ; p nicle n r ow , conden ed ometime s a A n as stol o i e a . omewh t open ; otherwi se in . f r A T 7 1 93 7 A A P R , ] PO CE E 5 23

a TYPE LOCALITY : En gl nd . DISTRIBUTION : M arshes a lon g the coas t from Newfou ndl and to M a ryla nd ; British Columbi a to northe rn C aliforni a ; introd u ced a t various places in interior of sou thern C a n a d a a nd northern United S a s a nd as a a s fa r s u a s as a nd s a a a t te , occ ion l o th Tex New Mexico , e peci lly lon g ditches ; n tive i a of fsuraS . A P l 6 l 8 : . 5 w : u . . S . . r . . . F l . . . 48 ; . 2 . . 8 ILLUSTRATIONS B ll U Dep g Ind p Britt Bro n , Ill ed f ;

6 2 . H M an. . itchc . f 6 : a s as s s s s a I n NOTE When the pl nt grow in crowded m e the tolon c nnot develop . Open grou nd a m a be as a or long ditches the s tolon s y as m uch meter long . In wes tern Oregon a nd Was hin gton i t is s s a ub s b aus s s . u a u a ometime tro le ome weed ec e of the tolon C ltiv ted nder the n me Creeping Bent .

a b A . a lba va . t t E a s s s s s r coarc a a S b . bas New ngl nd pecimen of thi pecie h ve een referred to cri n , ed on

- A . r h h . a a a be a a a tata r s A . lolo ni er coa c s a . E of Germ ny , which ppe r to n rrow p nicled form of f L

i E lli i l i 1 . s s ott ana ch es n R . . n . 2 : 6 . s . Ve M a Agro t S u t , S Sy t g t 2 2 24 0 . 1 8 .

n ll h . 1 : 1 4 1 1 . b r tis ra c o ides . S . . a . A os a G 3 . 8 6 as s A . E lliotti n a . g E Bot C (The i of a ) Not A . n 1 r 1 8 0 . a a ch o ides Poir .

— A a a u a - 4 ua u s s s u 3 1 0 0 . a s a s nn l ; c lm lender , delic te , erect , gl bro , bo t noded , cm t ll ; he th — 4 ﬂa l x a us s a u a u a a 3 . a s t a s s ab us gl bro , tri te ; lig le thin , c te , l cer te , mm long ; bl de , , lightl y c ro ,

n 1 . a ﬂ s ss a 5 . a d a a di use ab u a mo tl y le th n cm long mm wide ; p nicle open , ﬁn ll y r ther , o t h lf the

o f a a s a us s a us a a s a l a entire height the pl nt , the xi gl bro below , c bro bove , the br nche c pi l ry , i n

a s a s s a s a us s k s s a a s r ther di t nt verticil , pre din g , c bro , the pi elet omewh t crowded tow rd the end of a s a a s a s o f o r ur a u as as the br nchlet , the l ter l pedicel (br nche the third fo th order) bo t long s s u a a i a a a at a u a nd the pikelet , thickened pw rd , the whole p n cle bre king w y m t rity rolling — u s a u s ab us o n 2 . a u before the wind ; gl me c te , c ro the keel , mm long ; lemm min tel y toothed , — i 5 m m . a us u s wn u u o r l l . a a s s s very thin , long , the c ll m n tel y pilo e , the e rly decid o ometime

ﬁ - 4 a a a a s exuous a s s 5 1 0 . w nting , tt ched below the pex , very lender , , delic tely hort pilo e , mm long ; p a lea wa nting .

: a bu S u a a . TYPE LOCALITY Or nge rg , o th C rolin : s as a s a nd u a a s s s u a nd DISTRIBUTION Field , w te pl ce , open gro nd , M ryl nd to Illinoi , Mi o ri , a sas and s u a a A aba a a nd as n as u a a nd as sa K n , o thw rd to Georgi , l m , e ter Tex ; introd ced in M ine M c h u se tts ; Yu ca ta n . A 1 H M an 2 r . A ro s t. 7 : . 40 . . . 67 . ILLUSTRATIONS : B ull . U . S . Dep . g g f ; itchc f

i He e ni i i h . o . a h . . 2 : 3 1 . 1 930 . 1 7 . Agro st s nd r so H t c c J ur W s A c ad 0 8

l - a a a a ua u s s 2 a us a u 1 1 . al Pl nt pp rentl y nn l ; c m lender , erect , noded , gl bro , bo t cm t l ; — ﬂa t o r s a s a us u b a a us a u 2 3 . a s s u he th gl bro ; lig le mem r n ceo , c te , mm long ; bl de loo el y invol te ,

— - a us 1 3 . 1 . a s a u . u s gl bro , cm long , mm wide ; p nicle conden ed , bo t cm long , p rpli h tinged ; — - b ua a s a a s l s s 5 6 . u s su us s s pike et hort pediceled , mm long ; gl me eq l , with et ceo ligh tl y pre ding — 1 2 . m a a u 3 . 2 s a us a u . at tip mm long ; le m bo t mm lo ng , with et ceo teeth bo t mm long the su m i as o r a us u s awn o f a o f a a u 1 m t , the b e c ll p be cent ; from the middle the b ck the lemm , bo t

- . u a s O s a s u a a s . cm long , twice genic l te , the ﬁr t bend ften omewh t ob c re ; p le ob olete

: Sa s a a s H a s u H enderson TYPE LOCALITY m V lley , few mile from Gold ill , J ck on Co nty , Oregon (

n a a : u a d . DISTRIBUTION Wet gro nd , Oregon C liforni M an 67 0 . ILLUSTRATION : H itchc . . f.

i 1 . i i n l 2 7 5 . 1 8 8 0 . T i . . B ot. a f 2 : 8 s s ex a h e . a s Agro t gu urb r , S W t C

A ua u s a s s a a a s u s a us nn l ; c lm delic te , erect , ometime br nching from ne r the b e , mi n tely c bro — — — b u 3 1 s ul u ul 1 2 . us s a 3 5 . a a s s a s j t elow the node , bo t noded , cm t ll ; he th c ber o ; lig e mm long ; — a s flat o r su u s a us 1 5 . a a a bl de , folded , binvol te , c bro , cm long ; p nicle h lf the length of the pl nt , a a s and a s s a s a us s b a s a as fin lly open , the xi br nche omewh t c bro , the lowermo t r nche in f cicle — b a l s i s u s o f a u 5 a u 2 . a s a bo t , bo t cm long , the br nche e ring bove the middle few p kelet ; gl me b u a as um s a u s ab ul us o n a nd a m m . a a s c te , c er o ne r the keel , long ; lemm o t long the gl e , s a u us a 2 — a a i a a s a o r flexuou s c ber lo tow rd the toothed pex , be r ng below the tip delic te tr ight w — n a a a . a n about 5 8 mm . long ; p le w nti g

: s S as a a Bola nder . TYPE LOCALITY Foothill of the ierr , C liforni ( ) : l a i a a nd u b s H l DISTRIBUTION Known on y from C liforn (the type m ddy order of pond , owe l u a a a u a a Tr ac Mo nt in , N p Co nty , C liforni , y

- 2 . 1\I a n. . 67 1 A . P 1 . 6 8 : l . 8 . . H . : u : S . . . ILLUSTRATIONS B ll U . Dep gr Ind p f ; itchc f 5 24 NORTH AMERI CAN FLORA [VOLUME 1 7

4 . 1 2 . . 7 8 9 . s is Hallii a se n . U . . N at e 3 : 1 9 . Agro t V y , Co tr S H rb

3 1 A r . A ost. 3 0 : . 90 1 . A a a . . S . . r b . A grostis B ai y i Scri n Circ U Dep g g (Type from Point ren . C li ” m a D av fa B l a sda le for i , y 2 02 M M inn ill ub 9 : 466 . 1 9 v e nta l s b . . u . . c A grostis occide i Scri n Merr B ll Torrey Cl (Type from , Shear Oregon ,

a i s ul s o r u at as a us s Perenni l , w th creeping rhizome ; c m erect dec mbent b e , gl bro , mo tl y

— - - u 3 o r 4 60 1 00 cm . a s a s s u usua s u us 2 7 . noded , t ll ; he th lightl y ro ghened ; lig le ll y con pic o , mm — — b a s ﬂat o r s s s a u s a us 5 1 5 . 2 5 . long ; l de , ometime omewh t invol te , c bro , cm long , mm wide ; — a s n s s a 1 0 1 5 . a s p a nicle narrow , r ther loo e , often brow i h , omewh t nodding , cm long , the xi

a us b a s s as o r s a s a a usua no t sc bro , the r nche lender , cending omewh t pre ding , verticill te , l ly more

s o r all a at bas u s a u a s a u ua s a us on th an 5 cm . long , ome n ked e ; gl me c min te , omewh t neq l , c bro

4 . l us nd o n a a a u a a ss 3 . a the keel a the b ck ne r the keel , bo t mm long ; lemm wnle , mm long , the c l — a a a . with a tu ft of h air s 1 2 mm . long ; p le w nting

M E LOCALITY : Oregon . 0

: s s a as Sa a a ba a a i i a . DISTRIBUTION Mo tly in wood ne r the co t , Oregon to nt B r r , C l forn

A 6 8 l . 1 0 2 H an 6 r . . . : . . . M . . 7 4 . ILLUSTRATIONS : B ull . U . S . Dep . g Pl Ind p f ; itchc f

1 05 . P b . H . u . . . A . . 68 : 33 . 9 e S . r . Agr ostis H allii va r . ringl i (Scri n ) itchc B ll U Dep g Pl Ind

A A o 1 5 . 1 a a s a . t. 7 : 6 897 . u . . S . r . r s A rosti s rin le S b . g P g i cri n B ll U Dep g g Br nching , foli ge tr mi

s b a s ar usua u a a a . Y AL : neon ; l de n row , lly invol te ; p nicle n rrow , comp ct T PE LOC ITY Mendocino a u a a . : s a a as u a Co nty , C liforni DISTRIBUTION In nd ne r the co t , Mendocino Co nty , C liforni , A 1 l 1 2 l . . A r . ro s t : . 38 u . . . . A P1 . 68 : . . : 7 S r . . r n le u . . S . P i g . ILLUSTRATIONS B l U Dep g g f ; B ll U Dep g Ind p

h in n Fl . li . 1 2 1 2 i s l e i a i c c . e s a f : 1 . 1 9 1 . 20 . s Agro t p d H t J p o , C

a u us s s u s u s a us l or 2 Perenni l , with n mero hort rhizome ; c lm t fted , lender , erect , gl bro ,

—4 o u u as u as a as 3 0 0 . a s a s a us s noded ne r b e , cm t ll ; he th gl bro , the l wer becoming fibro ; lig le m ch fl us 4 . a s s asa a s s at o r s s a mm long ; le ve mo tl y b l , the bl de lender , firm , erect , folded , lightly c bro , — . f . or 5 1 5 . 1 o r ss u a o u 3 cm long , mm wide le , the pper bl de below the mi ddle the c lm , cm long 1 — 1 ss a u 0 5 . a x s a us a s v a le ; p nicle p rple , open , cm long , the i gl bro below , the br nche erticill te , i — a a s a a us a s 2 5 . u es becoming d v ric tely pre ding , gl bro , n ked below , the lowermo t cm long ; gl m us o r o r a 3 . 2 l u o a s a u a . a ss a a gl bro ne rly , c te , mm long ; lemm mm long , wn e ; p le ver y min te wanting .

: S b a as s S u a a a a a a H itchcock 345 5 TYPE LOCALITY i eri n P , eq oi N tion l P rk , C liforni ( ) a a nd : s s s u S as . DISTRIBUTION Me dow Open wood , o thern ierr

H . M a n : 67 5 . ILLUSTRATION itchc . f.

2 2 1 - . i s ll in 2 s T . Pé er . . 6 : 3 8 . a ens M em . c a . t I Agro t p r A d St. sb V

1 84 1 .

A rostis exar ata va l ttora l r . 1 3 H owell s as u . u 4 1 b : 5 . 886 . g i i V ey , B ll Torrey Cl (Type from Oregon , tj4 ) A rost s densi lor l tt a var . o l s as ra t H b 3 2 1 892 . as A . exarata . . . N a . S . . : 7 g i j i i V ey , Contr U er (B ed on l t va r . tora l i i s Vas ey . )

— — a s u s a u s a s u 2 4- 20 40 Perenni l , with creeping rhizome ; c lm erect , gl bro , r ther to t , noded ,

. a s a s ab us o r a so ﬂ o r s u a . a s at cm t ll ; he th gl ro ne rly ; lig le r ther ﬁrm , mm long ; bl de ome a u 1— 4 — . a a a s s k usual a 5 1 0 . o wh t invol te , mm wide ; p ni cle contr cted , lmo t pikeli e , l y p le , cm l ng ; u s a u a a n — g s us o 3 . a a s a u s l me c min te , c bro the keel , mm long ; lemm little horter th n the gl me , a ss a a a wnle ; p le w nting .

: A a TYPE LOCALITY North meric . : Sa u s a a s as a a a . DISTRIBUTION nd d ne long the co t , W hington to centr l C liforni

: u . D e . A r . P l . . 6 8 : l . 1 3 S . . 1 H . a . . 67 6 . ILLUSTRATIONS B ll U p g Ind p f. ; itchc . M n j N : i s s s m a be a se a - as A en die o si s a s . OTE Th pecie y only co t form of . g V ey

2 2 . s is die oe sis n ase ll . T e l 1 5 5 . 1 8 8 6 . Agro t g V y , B u orr y C ub 3 :

A ros i s o lios g as e u . ub 1 3 5 1 886 . . A . ol o : 5 . i sa y , B ll Torrey Cl (Type from Oregon ) Not f lé ng l gl y A ro s die o ens i s va l r . o o g s a as . . . A ol o S N a t. H b . 3 4 1 892 . as . sa g : 7 . sti f i V ey , Contr U er (B ed on f i ase y . ) A rost s a n n va c a r . stolon er g a as . . . a H 3 5 892 . S N t. b . 1 i i if V ey , Contr U er : 7 . (Type from Oregon )

A . ca n n a var . stolo n era B l tt 1 847 Not i if y , . A ro t s a lens ol o s a H . u . A g . S . . o 6 : 4 1 0 as A . liosa r . . 5 . 8 3 . 9 i p f i itchc B ll U Dep g Pl Ind . (B ed on f sas ey . l

5 26 NORTH AMERI CAN FLORA [VOLUME 1 7

ni . 2 0 7 . 1 24 . m . U ﬂ 8 s is exarata T in. a 2 6 . Agro t r Gr

A m . 2 239 . 1 83 9 . a . a m nor H . . . : u s A grostis exara ta v r . i ook Fl Bor (Type from Rocky Mo nt in ) 2 “ - 6 3 1 4 1 a m A a . t. P étersb . . : 6 . 1 8 . u b M e . S A grosti s gra nd i s Trin . c d VI (Type from Col m i H ooker u b a i ( ) [Col m i R ver , received from 2 - A i a 6 3 1 7 . 1 84 1 . A a t. P étersb . . : M em . . S A grosti s a sperifol i a Trin . c d VI (Type from North mer c ) 2 - ka u 6 29 1 84 1 . oo t A P éte rsb . . : 3 . S em . a . t. ti s couler i . M S A gros S i Tr n c d VI (Type from N o nd ,

Vancouver I sl a nd . )

1 62 1 1 863 . um bi a s . a 9 . A a . . 8 : n u . . A grosti s albi ca s B ckl Proc c d Phil (Type from Col wood , Oregon ) l 2 a a 1 89 . su b b s . A . . 1 3 : . 31 . li a a s u . . S . r t s r ta . as er o A gros i exa a f p if V ey , B ll U Dep g Bot p (Pre m ly ed

a s er ol a r . on A . p if i T in ) 1 4 : i D e M o tte a 1 3 1 9 12 . s t . s . . . T L l u lm i s . . A grostis ﬁ i c M E Jone , Con r We t Bot ( ype from ttle P rk

a bab A a Jones 605 6 bb. on the K i , northern rizon , )

- n a ul s s a u s o r s a ul a at as a us Short lived pere ni l ; c m in m ll t ft , erect omewh t genic te b e , gl bro , — s a u o r a a u l a s a a 20 1 2 0 cm . a s ea s s s s u r ther le fy , t ll ; h th gl bro omewh t c bro ; lig e prominent ; bl de — to s and u 1 8 . s a us a a s a ﬂat, mm wide , c bro ; p nicle n rrow , from omewh t open clo e interr ptedl y

— o r wn- a ua s a us o n s 5 25 . u s a u a a pikelike , cm long ; gl me c min te pointed , ne rly eq l , c bro the keel — m u 2 . l o r a a ul us o n a 4 m m . a a a s s and often sc ber o the b ck , long ; lem bo t mm long , wn e be ring u o f a a s a o r s awn a us a us a a from abo t the middle the b ck tr ight bent ex erted , the c ll gl bro ; p le less th a n mm . long .

: a as a A as a . TYPE LOCALITY Un l k , l k : s a u a t a nd u a u s es b as a DISTRIBUTION Moi t or r ther dry open gro nd , low medi m ltit de , w tern Ne r k

A b a a nd A as a a nd s u a a a and . to l ert l k , o thw rd to New Mexico , C liforni , Mexico 1 A . . 1 3 : l . 3 1 . I 6 l 1 6 . P S . u . . . A r . . . 8 : . : u . . r S ILLUSTRATIONS B ll U Dep g Bot p ; B ll U Dep g Ind p , 6 2 A 22 2 M an. . 8 3 H . . 2 l . 2 1 . 1 2 l . ; l . ; f ; p , f , ; p p itchc f

m . exara a ar . o o e s . H . Am . ur . . 2 1 : 1 36 1 34 m i cr h lla Agr osti s t v n l pi (Torr ) itchc Jo Bot . 9 A op y P ol n va m on a 4 1 8 5 4 Am a . on l o n. . 1 6 . o m ons e i e si s r . Steud . Sy Gr m (Type from North eric ) yp g p

l i s . a if 3 66 1 85 7 ex r a o P l x s P c . 5 : . . as s A . a ata v r . m on le s . o lepi s Torr . U . S . Rep . E p . M (B i of pi ) y i a 62 a d . a a 88 . 1 863 . u b s o on a lo ecuro es u . A . . 1 8 : p g p i B ckl Proc c d Ph l (Type from Col m i Pl in , lo e uro de A A h a 1 2 l A rosti s a c s . a . a . . 8 6 : 333 . 1 863 . as P o Oregon . ) g p i Gr y , Proc c d P il (B ed on y lo u ro a 1 . m A r a ec i de . 1 7 9 . rosti s m cro h ll a va . m a or o on a lo ecu o des u ) o t A . p s L g y r j p g p i B ckl N , i p H 3 1 . 2 S N a t. b . : 5 8 7 . 892 . u a a a Wat on as . . s V ey , Contr U er , (Type from Tr ckee V lley , Nev d ,

n t . a u i a a S b . . a a . . c i . 6 1 5 2 . 1 8 4 . a u A . S : 9 ﬂ cri n ; J M M co n , C n d Rec (Type from V nco ver n n m A . A o t 1 as a M a co u A v resce s icro h lla b . . . . 1 0 s S . S r r s . 9 . I l nd , i p y cri n Circ U Dep g g (B ed r h A ta m cro h ll H A m 2 A m i c o lla u . ex ra 0 S a i a . . u . . : 3 3 . 1 9 1 5 . as on . p y te d ) p y itchc Jo r Bot (B ed on h ll a m c ro a u . a A . S u as a . : sé i p y te d ) P nicle n rrow, often interr pted ; lemm wned TYPE LOCALITY Po a a h a a s ass . : as a a a . : Creek , W lker P , C liforni DISTRIBUTION W ington to B j C liforni ILLUSTRATIONS A 6 : l . . 1 2 . . . . r . . . 8 l M a n. 682 B u S 7 ; . 1 9 , . 1 . ; H . . . B ll U Dep g Pl Ind p , f p f itchc f s s exara a m A o t var . a a H H . l Am . u . . 2 : 303 . 1 1 5 . A am a H . gr ti pl ( itchc . ) itchc . Jo r Bot 9 p itchc A . 6 8 u . . S . r . . . : 38 . 1 905 . bus a a a s as a B ll U Dep g Pl Ind Ro t , p nicle l rge , r ther loo e ; lemm wned .

: s Suksdor : s u b a A a . TYPE LOCALITY Roo ter Rock , Oregon ( f DISTRIBUTION Briti h Col m i to rizon A I 2 : u . . S . . P . 6 8 l 0 r . : . . ILLUSTRATION B ll U Dep g . Ind p : A a 1 06 a A as s . 2 1 889 m a A xar ta v r . a m la . N as . . r s . s e a OTE pl te ( ) in V ey , g Gr e ed , y repre ent p a is A ro t ex i a nd h a b s s arata var aci ca . s s s The pl te entitled g i . p ﬁ There no de cription the type not een u fo nd .

2 : 2 - 7 . s i lif i in s ca Tr . . Pét r b . . 6 Agro t orn ca M em A c a d . St. e s V I

9 . 1 4 1 3 5 8 .

A rost s dens i ora as N a t. H b 3 92 a a . . . 7 2 . 1 8 . u a S . : S g i ﬂ V ey , Contr U er (Type from nt Cr z , C li fo r nia A nderson , . ) A rost den i s s ora va . a ren r r a a as H b 3 7 2 1 8 2 . . . S . N at. . : . 9 g i ﬂ i V ey , Contr U er (Type from Mendo a a n l r r e . cino , C lifo ni , P i g )

a u s s s usua a s u o r s a s a at as Perenni l ; c lm ce pito e , ll y r ther to t , erect omewh t pre ding b e , ab — us 1 5 60 . a s a s a us o r s s s s a us u u a gl ro , cm t ll ; he th gl bro ometime lightly c bro ; lig le tr nc te , usua s A ex ra a a . a t u u a s ﬂat s on u ll y horter th n in , p ber lent ; bl de , ﬁrm , trongly nerved the pper su a s ab us u sua no t a 1 0 f . s o u a rf ce , c ro , ll y more th n cm long , tho e the c lm comp rativel y broa d a nd s — — 3 5 . n a d 3 5 . 1 a as u as 0 . a s hort , often cm long mm wide , r rel y m ch mm wide ; p nicle den e , s s s s 2— — u 8 . 5 1 0 . u s a u o r acu pikelike , ometime lightl y interr pted , cm long , mm wide ; gl me c te

a a u 3 . s a us o n and s min te , bo t mm long , prominently c bro the keel trongl y scabrous o n the sides ;

a a s a u s a l ss o r w a s a wn lemm little horter th n the gl me , wn e ith tr ight a from minute to some

a u s a a o ne u t as a a wh t exceeding the gl me ; p le fo r h to one third long s the lemm .

: a TYPE LOCALITY C liforni a . : Sa s a nd f s a se a u Sa a u a a DISTRIBUTION ndy oil cli f ne r the , Mendocino Co nty to nt Cr z , C liforni .

u . A : S . . r . 6 . . 8 : l 2 . 7 . H . M a n. g . ; . 684 . ILLUSTRATIONS B ll U Dep Pl Ind p , f itchc f N O TE : s s e s h as b us nd A . exa rata a A lo m erat Thi p cie een conf ed with with . g a (Presl) Ku nth 0 f P m c . ART 7 1 93 7 AC A P , ] PO E E 5 27

2 i R 8 . s s oss ae as n e r . . . N a t. U . 1 2 e 3 : 7 6 . 89 Agro t V y , Co t S H rb .

n - 2 t var a . M em A a A ros s s . t . étersb . 6 : 3 1 4 1 S . P 4 . . 8 1 . u a g i i Trin c d VI (Type from Rocky Mo nt ins . )

A va r an . 1 s u 7 99 . Not . i Th ill

A rost s var ab l s . a 32 . 1 b . . . . . 1 : 0 90 . as A . va r ia ns g i i i i Ryd Mem N Y Bot G rd (B ed on Trin . )

a u s s s s a us 1 2 - a b 1 0— 0 as 2 . a Peren ni l ; c lm den el y ce pito e , erect , gl bro , or noded ne r e , cm t ll ;

us u u . sheath s glabro ; lig le abo t mm long or the upper 1 mm . lon g ; bl a des ﬂa t or more or

ss u a us o r a so s s s a 1 0 . a nd a 1 le invol te , gl bro ne rly , mo tly le th n cm long not more th n mm . — a a usua u 2 6 . a s a s s wide ; p nicle contr cted , ll y p rple , cm long , the br nche ppre ed or the lower as s a s a us u s a u a ab us k 2 . cending , omewh t c bro ; gl me c min te , gl ro except the eel , mm long ;

a a ss . a a u . lemm wnle , mm long ; p le mi n te

Y : s a E d th Ross T PE LOCALITY Yellow tone P rk , Wyoming ( i in : s and u a s s a t a u s a a nd a DISTRIBUTION Rocky creek mo nt in lope high ltit de , Color do Ut h to

A b a as a nd a n a . l ert , W hington , C lifor i A r A : u . . . D e . . ro s t. 1 7 : . A . 6 2 S u . . . l S . r . . 8 : . 4 ILLUSTRATIONS B ll U p g g f B ll U Dep g Pl Ind p , if F 1 P a c t. . 340 H . M a n. . 1 2 ; A b a s , 1 11 . . . S ; . 680 . f , r m f itchc f r nd a N : f s A . exa ata a u bas s a s a OTE Di fer from in the h rd t fted e , the m ller ize the n rrower fewer ﬂo w a a a b a n a a e red pa nicle with a ppress ed branches . Wh t ppe rs to e wned form occurs in Color do

a n as s a nd s u b a s . (Breckenridge d Mt . M ive) Briti h Col m i (Revel toke)

2 1 9 . i i ens H . E . . l : 1 3 5 . 1 8 5 . . N . Agro st s v re sc K ov G en. Sp

A r ulu m ex nus s . H a u l 23 6 . 1 0 . a s ca . : 83 . g i Pre l , Rel c k (Type from Mexico )

t s m x ca n u R év a . u . 1 830 A r nlus m ex ca nus . A ros e a . S . . as a s g i i K nth , Gr m ppl xvii (B ed on g i Pre l )

1 67 . A m ex cana . 7 Not . i L

A o u ensi s H . B K . i t l c . a a s s s 2 . D iffering from . in h v ng loo er inﬂore cence ; pikelets mm long ;

wn a a . a . a a u o r a a lemm mm long , the tt ched bo t the middle little bove

W P E : u a S a . LOCALITY Tol c , t te of Mexico

DISTRIBUTION : Known only from the type collections of the two n a mes cited . A 6 : l . 3 7 B u . . S . . r . . . ILLUSTRATION : B ll U Dep g Pl Ind 8 p .

i 3 . s s tolu is H . E . . . . 1 1 v l : 1 3 5 8 5 . 0 Agro t cens K N o G eri . Sp .

1 8 : 3 . 1 22 . a u a a H o A ost s H o m a nni R e ert. S . . 9 s m a nn gr i ﬁ Mez , p p Nov (Ty p e from Ir z , Co t Ric , f

— 2 o r - 0 i a ul s s s a us 3 a as s 1 30 . Perenn l ; c m ce pito e , erect , gl bro , noded ne r the b e , mo tly cm — a s a s a us u 2 4 . a s s asa s u o r s es t ll ; he th gl bro ; lig le mm l ong ; bl de mo tly b l , lender , in vol te ometim

s of t ﬂat a us usua no t a 1 0 . a a s o r ome hem , gl bro , lly more th n cm long ; p nicle n rrow , conden ed — s e ik o r s a s o r u 3 7 . s s a s a us pik l e , omewh t loo e interr pted , cm lon g or ometime longer , the xi gl bro ,

a s s a ss a us o r a so s ss s a us u s the br nche hort , ppre ed , gl bro ne rly , the pedicel more or le c bro ; gl me

u ua o r u a u a s a us o n s ab u 3 . Slightl y neq l , brown p rple , c min te , c bro the keel , the econd o t mm w a m a u a a u 2 . a a as a n s long ; le m min tel y dent te , bo t mm long , wned from ne r the b e , the omewh t

a u as a s u s al us ab us a a a . bent , bo t long the gl me , the c l gl ro ; p le w nting

: u a . TYPE LOCALITY Tol c , Mexico i n i : u a i s s u a d s u a . DISTRIBUTION Mo nt n of o thern Mex co , o thw rd to Ch le

6 l 7 . 1 0 : l . 33 u . . . A r . . . 8 : . 3 . a . . S ILLUSTRATIONS : Rep . Mo Bot . G rd p ; B ll U Dep g Pl Ind p

3 1 i h . n v . . s i s sub atens c c c S o Agro t p H t o k , p

a ul s o r s a ul a at as s s s a us a u Perenni l ; c m erect omewh t genic te b e , lender , ce pito e , gl bro , bo t

- — 2 l 2 0 40 . a s a s a us u 3 . a s s noded below the midd e , cm t l l ; he th gl bro ; lig le mm long ; bl de mo tly — 0 as a s o f a s s u a l ax ﬂ exuous s a us 5 1 . b l , tho e the i nnov tion lender , invol te , r ther or , c bro , cm long ,

o f ul ﬂ 1 w o r u i a s a s s s at . a tho e the c m , mm ide , invol te ; p n cle n rrow , omewh t loo e , browni h , erect , — i 6 1 5 . a s s a us a s as o r a ss s a us a cm long , the xi c bro , the br nche cending ppre ed , c bro , vertic ll te , s a at as s s ﬂo riferous as as u as 5 ome n ked b e , with hort one intermixed , from b e , the lower m ch u l . a a s st s a s s u s s a ua cm long , the l ter l pedicel mo l y horter th n the pikelet ; gl me omewh t neq ,

b 2 . a us a u a s a us o n a a u 3 m m . a a u c min te , c bro the keel bove , bo t long ; lemm o t mm long , the c ll

- m m s a th e a s . . hort be rded , h ir long

— i a involuta e a u a . a a Perenni s ; cul mi erecti c aesp ito si 2 0 40 cm . lti ; lig l 3 mm long ; l m n e — — lo n ae anic a a ub en a 6 1 0 . a a s a s sc abrae 5 1 0 . ul a u s s at s gr cile cm g ; p ng t p erect cm long , r mi 5 28 NORTH AMERI CAN FLORA [VOLUME 1 7 '

i u l m cu m in ae aullum ina e l lon ae a 2 ap p ressis vel asce ndent b s ; g u ae a at p qua es 3 mm . g ; l emm

fr m i l r i m r v r in a ed a i aed tu a b e ite s . s . u a s sa s mm long m , ri to dor li p , c llo pilo o , pili mm longi ,

a s a enic ul ata 2 . exserta . ri t g , mm

l a u a u 3 100 s a u a 1 97 8 H . F H b . Type collected on Cerro de M erte , ltit de meter , J n ry , , ( ittier er

- a H b no . no . 1 047 0 . S . N t. . s . eo r . s a . Inst . Phy g g Co t r ; U er

DISTRIBUTION : Known only from the type collection . N : A s a A ua u a a a H tchcock s a a t u a OTE pecimen from Volc no g , G tem l ( i in h de medi m lti ” w ﬂ a diﬂ e r s b a u s 60 . a t u u s m a be s s s . t de , y thi pecie It in eing more le fy , the c lm cm t ll , ith c lm — nic le o r b a u a 5 . a e es b a s 1 2 . s u as . l de mm wide , the lig le m ch mm long , the p m open with no Short r nch

The s pikelets ar e as in the type .

w i n 2 i n . . 2 . s is ell i c . o . . N at e . : 7 6 . 1 8 9 3 Agro t Ho S r b C tr U S H rb 3 .

— a ul s a s a ul a bas a us 3 o r 4- a 40 60 Perenni l ; c m cending from genic te e , gl bro , noded , le fy , — u s o r u u u 3 4 . a s ﬂat l ax . a s a s a s a us cm t ll ; he th gl bro min tel y ro ghened ; lig le mm long ; bl de , , c bro , — n n 1 — 0 . 3 5 m m . a s a d 0 3 0 a s u a s 3 . a s m ch cm long , wide ; p icle loo e open , cm l ong , the br nche

ﬁ exuous s a us a s o f s and - ﬂowered a th e , c bro , verticill te , tho e the econd third order few tow rd

s u s s a u ua a u a a a and ﬁ rm s a s a us on end ; gl me omewh t neq l , c min te , r ther n rrow , omewh t c bro the 4— ab u . a a u . a a as keel , o t mm long ; lemm c te , toothed , mm long, wned from ne r the b e ,

wa . awn s a u 6 . a a the bent , ex erted bo t mm ; p le nting

: H i H owell 1 98 TYPE LOCALITY ood R ver , Oregon ( )

R I : u a a nd H u i s . DIST BUTION M ltnom h ood River co nt e , Oregon

: A 6 8 : l . 2 A b a s 1 11 F 1 if u . . S . . r . . . 5 ; . . P ac . St. . 342 ILLUSTRATIONS B ll U Dep g Pl Ind p r m , f ; 68 a . 5 H itchc . M n j. .

i hi m li al . . r l . a . 3 . . P Y. 68 . 1 8 3 Agro st s e a s (W t ) B S P e C t N . 88

o a 7 3 . 1 7 88 . Cor nuc pi a e hyem ali s W a lt . Fl . C rol . b A a r 1 : 3 7 0 . 1 7 9 7 . . ros t s s ca a S . . A g i Willd . p Pl (Type from North meric ) Am hodinm lax nm . . . 1 : 42 1 803 H u n B a Tr i c i or . . . s a ﬂ Michx Fl Bor (Type from d o y to Florid , h ux M i c a . )

m . u 1 25 5 1 8 10 . a A rost s laxi ora . a . S . : . a B o L E sc . g i ﬂ Poir in ncyc ppl (Type from C rolin , )

A ost s b . V l a br B a v A o 1 1 2 1 1 2 . a s r i a s c a e u . r s t. 6 8 . 8 r sca a f g , (B ed on g i Willd )

I 1 0 . 1 1 as A r st br hod nm br u m . a 3 . 8 . o s sca a . Tri c i s ca M uhl C t P . (B ed on g i Willd ) n c k 2 5 1 82 1 am h a t s cl a v . K r at u : 5 . . tc tka . A g os i a Trin Ne e E td e . (Type from ) ’ ro s ti s lax i a a h r A . . u . 7 3 1 . 1 823 . as Tri c odinm l A g ﬂo a R ch rd s . Bot . p p Fr nkl Jo r (B ed on axiﬂornm

Michx . i h n m nt nu m F 1 Tr i c odi m o a . . . . 84 . 1 823 . u a s S s . Torr U (Type from Fi hkill Mo nt in , New York ) h d n V e . a . 2 : 1 5 7 . 1 824 . as T T i c o i m laxa m u s . . s . r S S S . la xi or nm ch lte , in R y t g M nt (B ed on ﬂ ’ - u . a was f T la xi ornm x . u su s . b t u b s M hl , on the ppo ition th t it di ferent from ﬂ Mich , M hlen erg ’ s i a a pecies s the s me as Mich ux s . ) Tr hodi nr a l l a nk l 244 1 83 a i H e . : . 0 . u a u ic bum s R e . S s a Pre l , (Type from Nootk o nd , V nco ver I l nd , né H ae e . )

A ro n 1 830 . as Tr i chodi nm albu m s t s nutkae s is u R év . a . Su . . s g i K nth , Gr m ppl xvii (B ed on Pre l . ) 2 r t noo A - M em . a . t. Péter b . . 6 : 3 26 . 1 84 1 . as T h A g os is tka ens is Trin . c d S s VI (B ed on ri c odi nm album

Pres l . ) r v r a m on n T c k m . A m c i . 4 5 43 1 843 A ost s l a xi lo ar . u S : . . as Tr h g i j ta a u er . Jo r . (B ed on i c odi nm nt n m o a um Torr . ) A ro t va m i 4 nn s Tu c ke rm . A . u . c . 45 : 45 . 1 8 3 . s s sca br a r . te S L l g i i Jo r (Type from inco n , New H a s mp hire . ) ”

A rosti s l x ora va r . c es tos a . . . . 2 : 442 . 1 43 . g a ifl a p i Torr Fl N Y 8 (Type from New York . ) A ro v a t s l a x r r . s ca br a . . . . 2 : 44 2 1 843 . as A . s ca br a s lo . g i if a Torr Fl N Y (B ed on Willd . ) r t l x va ten l n s . F . . . 2 : 44 2 . 1 843 . as A . s ca br a var . tenn T c k A os s a i or a r . u g i ﬁ i Torr N Y (B ed on i s e rm . ) ’ A ro s t T k M r H . H 43 1 843 . as Tr choa inm s Tor e uc e rm . a . 9 1 i m ontanu m g i y i g ort ovey : . (B ed on

A . Torr e r . u 1 830 . Tor ) Not y i K nth , r a a A ost s l e to u . n a 1 8 5 4 . u s . 1 69 . g i p s Ste d Sy . Gr m . (Type from L o i i n ) ro t l - 1 A s s s ca br a va r . or eo hi as s . 1 6 1 . 7 7 4 . 86 1 as A . l a 8 . axi lora var . g i p Wood , Cl Book ed (B ed on [ j ] m o nta n h i A . oreo i la . a Tu c ke rm . There s no reference to p Trin ) A rost c br n cnl 2 a A a i a . 1 8 6 : 90 . 1 863 . u b a a s s i s a u . . s g i B ckl Proc c d . Ph l (Type from Col m i Pl in ,

N uttall . Oregon , ) A ro t s br o n a 2 1 9 c m ta na . a O C N at. H s . : 9 1 . 8 . as s s a a va r S . 5 g i . Fern ld , Proc Portl nd i t (B ed on Tr i cho nm nt n m a w a k b a s b as Tu c e rm . as di m o a u . s Torr Thi com in tion m de y V ey , giving a u b . a a nd S . a t. H . 3 : 7 6 b s s u s as . . N thor (Contr U er the i not given , erroneo ly cited s A n v n l ynonym of o aea g i a e Vas ey . ) A rost n n n va h em l . . . 3 338 . 1 898 . as o uco a e h em a l s s ca a r . a s u : g i i i i K ntze , Rev Gen Pl (B ed on C r pi i i

W alt . ) A ro t a i e d n u u 3 5 47 3 0 a u B cknell s s ce e s . . b : . 1 9 8 . g i Bickn B ll Torrey Cl (Type from N nt cket , i in 1 9éé A ro t n k h em a l ut a en i . . a t H b . 1 3 5 6 . 1 9 10 . as s . S N . : g is i i s s s Scribn Merr . Contr . U er (B ed on A nutk en a s is Kun th . ) A re ti s h m l n ll m M id l a t 4 2 1 rnuco a e h em a l s a . s i . 5 N : 1 6 . 1 9 . as o e a s Lu c A . . g y , (B ed on C pi i i W lt ) ART 7 1 93 7 AC A P , ] PO E E 5 29

A rost s s ca bra . Tncker m a ni a a 3 5 207 193 3 , : . . a g f Fern ld Rhodor (Ty p e from Br intree , M as sa lts it ‘ bbga va r se tentr n A ro iﬁil . o a l s a a 9 3 3 5 : 09 . g p , 2 1 3 . ( Il o nne Ba i i Fern ld Rhodor Ty p e from y , a r 1“ u , F e nald , L o n . 6 F o a s eti era a o i t 0 . 2 c . 1 Newfo ndl nd g gg Form g Fern ld , p . (Ty p e

u . u a F er na ld L o n Er F o 7 9 as a from B rgeo Newfo ndl nd , , g , gg , the lemm wned . )

a u s usua u s ab 20 — 0 us 8 . a s a Perenni l ; c lm lly t fted , lender , erect , gl ro , cm t ll ; he th s gl a brous s u — a u s u 1 3 . b a s s basa ﬂa t s u s a b or c ber lo ; lig le mm long ; l de mo tly l , or loo ely invol te , c rous ,

a s a us s s a s u as 2 . a n rrow , often et ceo , ometime m ch mm wide , r rel y wider ; p a nicle di ffuse ,

usua u as u a s 3 0 . a b a s a fe w lly p rple , m ch cm long or r rel y more , the r nche r ther , long , very ‘ s ab us a a a s tiﬂl s a a s a c ro , c pill r y , ﬁn lly y pre ding , verticill te , e peci lly the lower , the verticils — s a b a s s a s u s 2 . a u a u a s a b u di t nt , e ring pikelet ne r the end ; gl me mm long , c te or c min te , c ro s o n s a s u s as as u s a ss a the keel ; lemm two thi rd to three fo rth long the gl me , wnle or r rely awned ; p alea w anting .

u a TYPE LOCALITY : So th Ca rolin . : a s a nd s u a t a nd u a u s u DISTRIBUTION Me dow moi t open gro nd low medi m ltit de , in red ced forms as a s u a A as a a nd s u a a a a a nd cending into lpine region , Newfo ndl nd to l k , o thw rd to Florid , C liforni , centra l Mexico . A . D e . r . . . 6 8 l 2 2 : u . . S 6 7 : . u . . . A r . 7 2 S . 68 ; 7 : . ILLUSTRATIONS B ll U p g Pl Ind p , B ll U Dep g f ; H a A b a s 1 11 . F 1 . P ac if. St. . 343 ; . . . 68 6 . r m , f itchc M n j : A t m a u th e a b a s a a a nd b NOTE t rity whole p nicle re k w y rolls efore the wind . A m a m os s i e a s v r . a a . H u . . A r . . S . . . 68 : 44 . gr ti h li ge in t (Trin ) itchc B ll U Dep g Pl Ind 1 905 . m h em a l s e na ta . A rost s em na ta a ub s as A . Uniﬂ i . . 2 07 . 1 824 r . A ost (P li hed i i g i ) g i g Trin Gr m . g is em n r 1 933 . ata . exa ista ta a R a 3 5 : 2 1 1 . G as é u u b g i f Fern ld , hodor (Type from p Co nty , Q e ec , F er na ld D od e Cf Sm th a s a s a nd a a a a a , g , i Br nche of p nicle hort div ric te ; lemm wned or wnless . i a a a s . : as . : A t a u s a nd a u s (The type wned ) TYPE LOCALITY Un l k DISTRIBUTION high ltit de l tit de , u a to A as a a nd s u a H a s a a a a nd a a Newfo ndl nd l k , o thw rd to New mp hire , North D kot , Color do , C liforni . A 6 l 2 1 . 8 : . 8 . . : u . . S . r . . . ILLUSTRATION B ll U Dep g Pl Ind p , f

3 4 i n . 2 s s ca ina . PI. 6 . 1 7 5 3 . . Agro t L Sp

Tr hod nm a n num a l 1 98 1 i i . c c . . : . 806 . as A ost s n na i Schr d Fl Germ (B ed on gr i ca i L . )

1 4 1 47 1 1 2 . r nln n nu B a v A r o s t . t A ra s ca s e u . 5 6 . 8 as A os s can na L . g i g , , (B ed on g i i )

F 1 . 3 84 1 8 7 0 A rost s can na var . al na . . . u a s E as r g i i pi Wood , Bot (Type from mo nt in of the te n m A n na var l na D u c o m . 1 8 9 . a s . ca . a 6 St te ) Not . i pi l a 4 vul a r s r sta t M ill . F . . . 69 . 1 892 . M n n alia A rost lba var . V s a . a a s o o g i g i f i p W (Type from g ,

We st Virgini a . )

a u s s s a us o r s s a u us s o r u Perenni l ; c lm ce pito e , gl bro lightl y c ber lo , lender , erect dec mbent — l a a t bas 3 0 5 0 . a u s s as s s a s a us s l e , cm t ll , often prod cing tolon with f cicled e ve ; he th gl bro or light y

s a u us u a u 2 . a s ﬂat o r s u s l ss a 1 . c ber lo ; lig le c te , mm long ; bl de loo ely invol te , mo t y le th n mm — w s o f va s usua s a a s 5 1 0 . ide , tho e the inno tion ll y very lender ; p nicle n rrow , loo e , cm long, the

s s a us a s as s a as u as 4 . a u s lender c bro br nche cending or pre ding , m ch cm lon g, n ked below ; gl me

ua a u 2 . u s a us a a s a eq l , c te , mm long , the lower min tel y c bro on the keel ; lemm little horter th n u s a a u awn s a us u s a a the gl me , wned bo t the middle , the ex erted , bent , the c ll min tely pilo e ; p le minute .

TYPE LOCALITY : E u rope . : a s and u u a u b a nd s u a to a DISTRIBUTION Me dow open g ro nd , Newfo ndl nd to Q e ec , o thw rd Del ware and Ll ich ig an; poss ibly n a tive nor thwa rd bu t introd u ced in the Un i ted States ; n ative i n E urope and b a Si eri . 9 2 92 A . . 6 8 : l . . 2 . . 4 u . . S . . r . : . . . . ILLUSTRATIONS Britt Brown , Ill Fl ed f ; B ll U Dep g Pl Ind p , f ; H 6 a . . 94 . itchc . M n j

l . I n . 6 : . P ll . . . D e . d 8 is l ili l a i ch c . 3 5 . Agro st ong gu H t B u U S p Agr 1 5 4 . 905

— l a s a usua a a u s s s ab u s 5 0 7 0 . a Perenni l , ll y r ther le fy ; c lm erect , ce pito e , gl ro , cm t l ; le ve of — — b a s ﬂa t s a us 1 0 1 5 . u ab u 4 s a s a us u 5 8 . the c lm o t , the he th gl bro ; lig le mm lon g ; l de , c bro , cm — - u s ﬂow u sua 3 4 . s s a a long , lly mm wide , ometime n rrower ; p nicle bronze p rple , oblong , loo ely — b us s s s a a 1 0 1 5 . a s s a ered , cm long , the br nche ver y c ro , the pikelet omewh t crowded tow rd the b us s l s a a s u as 5 . u s a u s a end , the lower verticill te , m ch cm long ; gl me c te , c ro on the keel , light y — b a a t a n b u . u ua 3 4 . a a neq l , the lower longer , mm long ; lemm o t mm lon g , e ring the middle ex serted bent awn; p alea mi nute .

: a a a D a v 69° B la sda le TYPE LOCALITY Fort Br gg , C liforni ( y : s and a s s a t a u s a o u M e nd oc m o DISTRIBUTION Bog m r he low ltit de , Till mo k Co nty , Oregon , to l a u a . Co nty , C forn i i 0 n 9 M a . . 6 8 . 1 PI a c if t. 344 H i . . S : A b a s 1 1 . P . ILLUSTRATIONS r m , ; tchc f 5 30 NORTH A MER I CAN FL ORA [VOLUME 1 7

i Ghie sbre htii n. ex . Pl . a . m . s s M 97 1 8 8 . 3 6 . Agro t g Four Gr 6

9 7 . . a . 6 1 88 . u aba A rost s seti oli a u . . L eb g i f Fo rn Mex Pl Gr m (Type from Mo nt Oriz , Mexico , i l 1 804 s eti o i . . m a nn Not A . f a Brot

— 90 a — a ul s s a us 5 0 . a s s a us u 2 4 Perenni l ; c m lender , erect , gl bro , cm t ll ; he th gl bro ; lig le mm

a s s or ﬁliform s a usua o r ss u a us or long ; bl de erect , lender , mo tly elong te , ll y more le invol te , gl bro 5 — 0 m a s a us a u s 1 3 c . a s a us somewh t c bro ; p nicle p rpli h , oblong , open , long , the xi gl bro , the

a s s a s a us o r a so a a a on a a br nche in di t nt verticil , gl bro ne rly , c pill r y , n ked the lower h lf , div ri

- w r c atel a as u as 1 0 cm . a s ﬂo e ed u s a u a u 3 y br nched , m ch long , the br nchlet few ; gl me c te , bo t

. u w a a u 2 a a . a as a n mm . long ; lemm bo t mm long , wned from bo t mm bove the b e , the bent , exserted ; p a lea wa nting .

Ghi esbre ht A : a a a . TYPE LOC LITY O x c , Mexico ( g )

DISTRIBUTION : Sou thern Mexico . A rosti s Ghi es e ht i was NOTE : A fra gment of the type s pecimen of g br g i Fourn . kindly s ent from the

H u b . P a ri s H erba rium by Dr . m ert

H n . kan l . . li r m . F is ea s H a t a db d ed 3 . 1 7 . 3 7 . s 1 83 8 Agro t bor S .

u br . . P I . 2 1 7 5 3 . u a . A grosti s r a L Sp 6 . (Identity ncert in )

- M em . A a t. Péte r . 2 1 n n var ene . t s ca a . a a . . S sb . : 7 0 . 1 832 A gros i i Trin ; Bong c d VI . (Type from

S a A as a . itk , l k ) - M em A a . a m l l u . P t an na v r . e a e ca . . t. étersb . . 2 : 1 7 0 . 1 32 A gros i s c i Trin ; Bong c d S VI 8 . (Type from

S a A as a . itk , l k ) - 2 M em A a . t. P é e 2 4 S t rsb . . 6 : 33 . 1 8 1 . as A n a t n a . . n ca a v . a enea A gros i s ae e Trin c d VI (B ed on . i r 1 2 n . A ae ea S 8 7 . Trin . ) Not . preng

n . 2 443 1 4 . l . n n va . te e la . : . 8 3 A grosti s ca i a r Torr Fl . N Y (Type from northern New York . ) H k r n Tuc ke rm . M a . H . 9 1 43 1 43 i c i . 8 a A rost s P e i i : . u s g i g g ort ovey (Type from White Mo nt in ,

New H ampshire . )

M a . H . H 9 : 1 43 . 1 84 n nn k rm . A rosti s co c a Tu c e 3 . u g i g ort ovey (Type from Mo nt Monroe , White

u a s H a s . Mo nt in , New mp hire ) m A m . u c i 45 2 u col a Tu c ker . 4 1 843 r st P i kerin i i var r . S . : . A g o is c g . pi Jo r . (Type from White

u a s H a s . Mo nt in , New mp hire ) - 2 . 600 . 1 847 Tri cho di nm concinnnm ass . . as A rosti s conc nna Tuc kerm . Wood , Cl Book ed (B ed on g i ) 4 1 b . . ss . : 44 . 1 85 3 A n ca ne iseb . e as n nea A rosti s arata var a e a G r L . . ca a var . ae g . in de Fl Ro (B ed on i ’ l fl l r . g 220 1 4 n. a . 85 . ab a t l r dor . eud e s b A ira la b a i ca Steud Sy Gr m . (Type from L r dor . S de cri es the s as 2 - fl o were d but s a s h as but fl ore t s r pikelet , the type pecimen in P ri one ; the de cription othe

wis e a grees wi th the s pecimen . )

ns . r nl A rost s r u br a va r evi ari stata a C o . G oe . 1 5 8 . 1 880 a aa br . u b g i . L nge , p Fl (Type from J li neh , a Greenl nd . ) n 5 n a u a . P A rost s rubr a va r a m er ca a b . C t C a . 1 . 2 : 39 1 . 1 890 . S . as A . g i i cri n in M co n , (B ed on

ru estr s C h a m . a u a a a . p i p (non the type from Ro n Mo nt in , North C rolin ) r - H N a t. b . 3 : 7 6 . 1 9 a A ost s novae l a . . 8 an e as . S 2 . u s g i g i V ey , Contr U er (Type from Mo nt W hington , n H a P n le A . nova ea li ae Tuc ke rm hi . s ri . New mp re , g ) Not g A rosti s r ubr M a M M tas a 2 A n n l n . 9 a a var a a c . e . 65 . 1 8 . as . ca i a v r . g . pi p Minn V lley (B ed on

al na a s a a but s s s a a b s . pi O ke , n me only , other ynonym cited how th t the n me elong here ) A rost l A A l udo . . . r . rost. l : 49 1 898 a ab s a s b . S a S . u S . . g i p cri n B ll U Dep g g (Type from Bl nc lon , a a L br dor . ) A rost b r a n a l l - - w 88 . 1 909 i s o eal s v r . m a cra tha E a s : . g i me , Rhodor (Type from Blow me do n

u a s f u a s s ab a . Mo nt in , New o ndl nd , the pikelet norm l ) A ro t B k a a a a s i ub 3 6 5 32 1 909 . s s a er b . u . : . g i Ryd B ll Torrey Cl (Type from P go Pe k , Color do , B a ker 1 5 A r A al udo a b o r a l udos a a a 3 5 : 20 7 1 933 . as . s S . stis bo ea li s v r . a . g p Fern ld , Rhodor (B ed on p cri n )

— 0 a u s o r s s u a at as s s a us 20 6 . Perenni l ; c lm erect ometime genic l te b e , ce pito e , gl bro , cm — a o r a o r a s wa s a s a us u 1 2 . a s t ll , in lpine high northern pl nt , d rf ; he th gl bro ; lig le mm long ; bl de ﬂa o r h a t or ss u a us o r s a s a us . s ss more le invol te , gl bro omewh t c bro , cm long , mo tl y le t n — l . w n . 1 . a ax a s as u as 3 a a a 5 1 5 mm wide , i n l rge pl nt m ch mm ide ; p icle pyr mid l , cm long , the a s and a s a us o r o r ss s a us s a a o xi br nche gl bro more le c bro , the lower whorled , pre ding , n ked bel w , — — s 1 4 . n s a a u s 3 . a u s a s a us o mo tl y cm long ; gl me mm long , c te , omewh t c bro the keel ; lemm s a u s aw a u awn usua and s l ittle horter th n the gl me , ned from bo t the middle , the lly bent ex erted , n s s s a a d u a a a a u o r s . ometime tr ight incl ded , r rel y w nting ; p le mi n te ob olete

TYPE LOCALITY : Sweden . : s s a nd s b a s a t a u s a nd a u s u a DISTR IBUTION Rocky lope moi t nk high ltit de l tit de , Newfo ndl nd a nd a A as a and s u a u a s O f a a nd Greenl nd to l k , o thw rd to the high mo nt in New E ngl nd New York ; s a su a u a a a and u a s a We t Virgini ; mmit of Ro n Mo nt in , North C rolin ; in the Rocky Mo nt in to Color do ; a s u l o in northern E rop e . 5 w 1 11 F 1 A 6 l . 4 2 . . 493 u ...... 8 : 3 3 : . . . . . S r ILLUSTRATIONS Britt Bro n , ed f ; B ll U Dep g Pl I nd p , ; H M an . 696 . itchc . I . AR T 7 1 93 7 P , ] POAC EAE 5 3 1

1 : Tr iniu s s b s A ros t s M ertensii NOTE de cri e g i from the sou thern A ndes of Chile (L inna ea 1 0 3 02 H e s a s a sa s s was a as a b 3 t te th t the me pecie collected in Un l k y Mertens . The Mertens i i A b re l H a spec men s o a is r tm . N 2 : A rost s B aker is a s a u a s OTE g i i form with tr ight incl ded wn . Rocky Mounta in specimens A b a a m a y be a n a ss a wn s a u a from l ert to Color do w ed or wnle , the tr ight or genic l te . 3 : w as s s s A . ru estr s A ll b A N . a OTE Thi pecie referred to p i y . Gr y in a li s t of pl antS from Ro a n u a a a a nd b a a . . 5 S . . 5 1 Mo nt in , North C rolin , y Ch pm n (Fl U S .

B 3 8 . s i s e lan i i n. e o M x. P1 . e am . 1 96 . 8 Agro t r d r F ur Gr 8 6 .

— C u s as 20 30 . a a s ﬂa t a u 2 w . u 3 lm cending , cm t ll ; bl de , bo t mm ide ; lig le mm . long ; p a nicl e m o r ss u u s s a a 7— 1 0 . a ore le incl ded i n the pp ermo t he th , contr cted , cm lon g , the br nches sub rif r a , s ﬂo e ous as u s a a verticill te ome from the b e , the longer from the middle ; gl me r ther bro d , a ua a u s a us o n a u , . a a s as u s ne rly eq l c te , c bro the keel , bo t mm long ; lemm long the gl me , awnless ; p alea wa nting .

: To tonih o B erlandi er TYPE LOCALITY , Mexico ( : DISTRIBUTION Known only from the type collection . N : s th e a is a a s a nd a OTE The de cription of pl nt t ken from ketch of the type , th t of the spikelets a a m b s a s H ba u b H u b from fr g ent of the type , oth ent from the P ri er ri m y Dr . m ert

i i h i 3 9 . s s da oens s a ll N sh . T e 2 l 24 : 4 . 1 9 7 Agro t , B u orr y C ub 8

A rost s tenn s as u . ub 1 0 : 2 1 . 1 883 . Sa n a u a g i i V ey , B ll Torrey Cl (Type from Bern rdino Mo nt ins , a a P ri h B rothers A tenn s b 4 a s S . 1 7 9 . C liforni , Not i i th nn nlm M em t . A ros s te i c i s as b . . . . a . 1 900 . t n g i N h ; Ryd N Y Bot G rd (B ased on A . e ni s Vas ey . ) n m s r l ro t s tenni c l i ecta as b . . a A . . . . 32 1 90 : 0 . g s i N h ; Ryd Mem N Y Bot G rd . (Type from Belt ass a a R dber 3 32 7 P , Mont n , y g 5 )

a u s s s a u 1 —3 P s s 0 0 . a a s s as a erenni l ; c lm lender , ce pito e , erect , gl bro , cm t ll ; le ve mo tl y b l , — s a s a us u 1 2 . a s ﬂat or o r ss u a us a the he th gl bro lig le mm long ; bl de more le invol te , gl bro bene th , 1 s a u us o n u su a s ss a . a s a n c ber lo the pper rf ce , mo tl y le th n mm wide ; p nicle loo el y spre di g ,

— ﬂexuou na 5 1 0 . a s a a s s a us u s a b u . cm lon g , the br nche c pill r y , , ked below , c bro ; gl me o t mm

u a s . a u a a u . s s as 2 a ss a a i u . long , ometime m ch mm , c te ; lemm bo t mm long , wnle ; p le m n te

: s a H eller TYPE LOCALITY Fore t , Id ho ( : u a a s at u a nd a u s s a a as DISTRIBUTION Mo nt in me dow , medi m high ltit de , we tern Mont n to W h in to n a nd s u a i a nd u a s s u al a a ba s g , o thw rd to New Mex co the high mo nt in of o thern C iforni ; F ir nk ,

A l as k a . 1 : l A r . . 1 3 . 34 u . . A : u . S . . . . r . P I. 6 l 2 9 . S . 8 ILLUSTRATIONS B ll U Dep g Bot p ; B ll U Dep g Ind : p . ;

i 6 H M a n. . . 68 7 Ab a s 1 11 . PI . P ac f. St. . 34 ; . . r m , f itchc f

M ex . Pl . am . 5 . 1 8 . 4 s is Bour aei n. 9 86 0 . Agro t g Four Gr

a u s ul s usua s s a u us Perenni l , witho t creepin g rhizome ; c m erect , ll y retror ely c ber lo below — s a s s a us w a s a - w 60 1 2 0 the node , ntror ely c bro belo the p nicle , ever l noded belo the middle ,

u — 4 ﬂat a us s a s usua o r ss s a us 3 . a s s cm . tall ; he th ll y more l e c bro ; lig le mm long ; bl de , c bro , — — w u s a a s 1 5 2 5 . ax s s a us 2 5 . a mm ide ; p nicle open , p rpli h , r ther n rrow , mo tly cm long, the i c bro ,

o r s a s s a us a o n w al the br a nches ascending pre ding , lender , c bro , n ked the lo er h f , the lower in

i s s a th e b a l s s s a u 5 . a a s on verticil , the verticil bo t cm p rt ; p kelet omewh t crowded r nch et ;

u s s u ua a u a s u us s a us on s a u 2 . gl me lightl y neq l , c te , r ther con pic o l y c bro the keel , bo t mm long ;

a a us us s a ss o r a w a s s a awn . lemm gl bro , obt i h , wnle , r rel y ith hort tr ight , mm long , the

callus gl abrous ; p alea abou t mm . long .

TYPE LOCALITY : Nea r Mexico City (B o urgeau

: A s a s i . DISTRIBUTION lon g ditche , Feder l Di trict , Mex co

7 . D . I 6 l . 3 A . P . . 8 : : u . . S . . r ILLUSTRATION B ll U Dep g Ind p , f

2 1 : 30 1 . 1 9 1 . s i s th rsi era M ez R e ert. . N o v . 7 4 1 . Agro t y g , p Sp

— an as as s s s a us 20 60 . a Perennia l ; culms erect from cendin g b e , loo el y ce p ito e , gl bro , cm t ll ; — s or a so u 2 5 . a s ﬂat s a us s of u s heaths gl abrou ne rly ; lig le mm long ; bl de , c bro , tho e the c lm

l m m . w a a O . ax s mostly less th a n 7 cm . long , ide ; p nicle n rrow , pen , cm long , the i

a s a s a v s u u a a a as or a gl abrous bel ow , the br nche in r ther di t nt erticil , neq l , c pill ry , cending p

s s a us a s a - ﬂowered a a s s a s i s pre sed , c bro , n ked below , ever l , the l ter l pedicel horter th n the p kelet ; 5 32 NORTH AMER I CAN FLORA [VOLUME 1 7 m s a u s a us on s a u 2 . a m . a w l ess a a glume c te , c bro the keel , bo t mm long ; lemm long , n ; p le

about one fourth to o ne third as long as the lemm a .

: S a P r n le 42 5 1 4485 TYPE LOCALITY t te of Mexico ( i g , ,

DISTRIBUTION : State of Mexico .

1 1 r 7 : 30 . 1 92 1 is ez R e e t . N . 2 s i s duran ens M . . 4 . Agro t g , p Sp ov

i a ul s s s a us a u 3 - to o r a 60—80 Perenn l ; c m ce pito e , erect , gl bro , bo t noded bove the middle ,

- a s ea s a us o r s t u u 2 4 . a s s a us s of cm . t ll ; h th gl bro ligh l y ro ghened ; lig le mm long ; bl de c bro , tho e

w of n a s o r ss u a a w a ﬂat a u 1 m m . the culm , bo t ide , the i nov tion more le invol te p nicle n rro , r ther — s a o r u s 1 0 1 5 . ax s a u s o r a so a s a loo e , p le p rpli h , cm long , the i gl bro ne rl y , the br nche ver ticill te ,

o r a a ss a s a us s s w on u as cending somewh t ppre ed , n ked below , c bro , the pikelet cro ded the pper

i a a a a a s ss a 1 . u s a u s us o n and a p rt , the l ter l pedicel le th n mm long ; gl me c m n te , c bro keel b ck ,

a u . a s s a us a s a u s a ss bo t mm long ; lemm lightl y c bro , l ittle horter th n the gl me , wnle , the

a m callus gl abrous ; p a lea about o ne third s long as the lem a .

: ur a a lm er s u ab 1 90 TYPE LOCALITY D ngo (P , pre m ly )

T : a s ur a and a i s i . DISTRIBU ION Wet pl ce , D ngo Feder l D tr ct , Mexico

i l z R e ert . . 1 4 2 2 ur . i s t r a bae M e 8 : 1 9 . 4 . s N 3 . Agro t , p Sp ov

us a u 2— a as — i a ul s c es ose a 2 0 30 cm . a Perenn l ; c m erect , p , gl bro , bo t noded ne r b e , t ll ; — s a s a us ul a 1 2 . a s ﬂat usua a l x s asa he th gl bro ; lig e dent te , mm long ; bl de , ll y r ther a , mo tly . b l , — — m 1 2 . a i s a ul us 5 1 0 c . s s a erect , c ber o , long , ometime more , mm wide ; p n cle elliptic , open , r ther

- — flowered 5 1 0 . ax s a us a s a s a s a us few , cm long , the i gl bro , the br nche i n r ther di t nt verticil , gl bro or a so s a al a a a a u l - flowered ne rl y , pre ding , fin l y div ric tel y br nched bo t the midd e , few , the pedi

s s u a s i s u s a u a us o n u sea cel mo tl y m ch longer th n the p kelet ; gl me c te , gl bro the keel , min tel y — us a 2 . a . a l ss a a wa bro ne r the tip , mm long ; lemm mm long , wn e ; p le nting .

P : . a u a ba s a i a . TY E LOCALITY Volc n T rri l , Co t R c : s a nd a a s h u ai s s a nd as u a a b a . DISTRIBUTION P t re wet p r mo , hig mo nt n of Co t Ric Colom i

i l 44 . s s e ennans T ckerm . A m . i . 4 a t u . c 4 Agro t p r (W ) Jour S 5 : 4 . 1 843

4 1 nuco e erennans a . . 7 a 7 88 . Cor pi a p W lt Fl C rol . . ’

t s ornu a e . a s co b a M a . A ro S s . 5 S s 9 : 8 7 3 . 1 a g i C pi mith ; J Nichol Ur n Gentlem n g 7 89 . (B sed on

Cornucopi ae perenna ns Wa lt . )

d r . . 2 5 1 7 9 as ornu r t le a n a . P r s 6 . co ae erenn n A os s e s S b o S . g i g li tirp (B ed on C pi p a s W alt . )

n m la P 1 1 7 0 . 1 7 rnu r t s 3 7 9 . as o co a e er enn n A os a o a . S . . : a s a g i Willd p (B ed on C p i p W lt . ) l ecu us c r l n a n a h t a H a N c r . . . 1 0 . 1 80 1 . A o a o us S . u p r i i preng Bot G rt lle (Type from Kent cky . ) A arol n nu 1 c a s a . 7 88 . Not . i i W lt T 1 : 42 . 03 . r i chodi nm d u m be A m . 1 8 a ec ns . . . M h a i c a nx . Michx Fl Bor (Type from Virg ini to Florid , ) h Tri c odi nm erenn n ll a . 1 9 1 8 1 6 . G : 9 . as ornu co a e a s . . S . . erenna n p E Bot C (B ed on C pi p s W alt . ) Tri chodi nm M nhl en n a b s . 2 V e . 1 5 9 . 1 2 er i a nm u s . . S . g Sch lte ; in R S y t g M nt : 8 4 . (B as ed on ’ u b T i h n a 4 s a u . set . a . s r c odi m . 2 6 . M hlen erg no , from Penn ylv ni [M hl De Gr m A t M cha ux i ros s n ﬂ . 206 . 1 824 . as Tr i chod nm d . a . U i ecu m ben g i i ii Trin Gr m (B ed on s Michx . )

M ch aux Z . A . 1 809 Not i ii ucc . A rost n b r ve o a cens 1 2 6 1 25 . T r s o 0 . 8 or e . s S . S s . : g i i preng y t (Type from New York , y ) A ros t s decu m bens H 1 0 2 as T h 8 . 1 8 7 . ri c odinm de u m ben L . . : c s . g i ink , ort Berol (B ed on Michx ) A de u m bens H 09 . . c s 1 8 Not o t , T h r i c odi nm n v . bor a cense . . s . V e a . 3 : A o e u 5 55 . 1 82 7 . S s S S . as ch lte , in R y t g M nt ddit (B ed on A rostis nov g ebora cens is Spreng . ) Tr i chod n t . l 4 i m sca br u m D a rl . . e s 1 b C r : 5 . 83 7 . u . sa a [M hl mi pplied y] Fl (Type from Penns ylv ni a . ) 2 A rost chw - S e n t a P r . . 6 1 s A . t. éte sb : 3 1 . 1 84 1 . z M em . S s a a g i i i ii Trin . c d VI (Type from Penn ylv ni , Schwe n tz i i . ) 2 A r t h la - P os s or eo t. étersb . . 6 : 32 . 1 4 1 i M ém A a . 3 S 8 . g i p Trin . . c d VI (Type from Bethlehem ,

Penn s ylva ni a . ) 2 A ro t h - s s Sc i ed na M A a t Péte rsb . 6 : 1 em . . S . . 3 27 . 84 1 . . g i ea Trin . c d VI (Type from Mexico ) A rost nova - n l a e T k m a H H 9 1 4 s e a M . . : 1 43 . 8 3 . u a u c er . s g i g i g ort ovey (Type from White Mo nt in , H a New mpshire . ) A ros t s m l T k m A c i 1 1 6 23 1 1 4 ca m . : u . . . . 8 8 . a . g i py a uc er . Jo r S (Type from New E ngl nd ) A r ost ca - br a va r . erenn n . s s 7 7 4 . 1 86 1 su a bas A a s as s 1 86 1 . b g i p Wood , Cl Book ed . (Pre m ly ed on . erenn n T k p a s uc e rm . ) A ro t s h na ntl . 96 6 a s c a u . . a . . 1 88 . a . g i i Fo rn Mex Pl Gr m (Ty p e from Chin ntl , Mexico ) A rost s er nna ns va t va l s 2 A e e H b . 3 7 6 . 1 89 . s r . a s as . . S . N a t. : g i p i i V ey , Contr U er (Type from then ,

Illinoi s ; the slender la x form . )

5 34 NORTH AMERI CAN FLORA [VOLUME 1 7

' NOTE : This species is described by Fo urnie r as awned ; the s pecimens cited are Schaﬁ ner 86 a nd '

A a i m nti ca is s b as a ess s b Scha ner 1 a s . 308 . v r ety de cri ed wnl , one pecimen eing cited , ﬁ , l o from a a H b a u a ll H u h s s . S . re a a s s . . b as T ac ub a y a . The pecimen in the U N tion l er ri m wnle Dr m ert ’ f a H a 86 s b u . kindly s ent fr a gments a nd a s ketch of Scha fner s no . in the P ri er ri m The spikelets are and a a s p a rtly a wned p rtl y wnle s .

x . l . m . 95 . 1 6 . 4 7 Agro stis tacubayensis Fourn. M e P Gra 8 8

a u s u a u 3 0 . a a s u us s a s a us Perenni l , c lm t fted , bo t cm t ll , the innov tion n mero ; he th gl bro ;

- — f nn a mm . a o f ul u o f u a s 3 . o s s a s ﬂat lig le c lm le ve mm long , the i ov tion long ; bl de c m le ve , — m m . o r ss of s l s a us 3 5 . a u 1 s a s light y c bro , erect , cm long , bo t wide le , tho e the innov tion 1 0 a us a a u a u . a s as a s et ceo ; p nicle n rrow , open , p rple , bo t cm long , the br nche cending , n ked below o r s s a s s s s a us u s s w a with ome hort br nche intermixed , the p edicel trongly c bro ; gl me ome h t n u ua a u a s a us o s a u . a a ut neq l , c min te , c bro the keel , the ﬁr t longer , bo t mm long ; lemm bo w a l ss a a a . mm . lon g , wn e ; p le nting

' P : a cub a a a s Scha ner TY E LOCALITY T y , Feder l Di trict , Mexico ( ﬁ

DISTRIBUTION : Southern Mexico .

n 2 1 PEREILE M A P l R l . H 1 5 . es e ae k . l : 3 3 . 1 3 r , 8 0 .

A ua s a ﬂat a s and a s m o or ss u a s nn l with n rrow bl de n rrow conden ed , e le interr pted , p nicle ,

s l - ﬂowere d s as s o r s w u us a s . S s us a ilky ith n mero wn pikelet , in den e f cicle globo e cl ter s long

ax s of a a a a a u a a u s not u th e ﬂore the i p nicle , the r chill rtic l te bove the gl me , prod ced beyond t, the spikelet surrou nded at bas e by nu merous s terile sp ikelets in the form o f bri stles o r delicate ’ a s u s i ua m idnerve a s awn a s br ct ; gl me th n , eq l , the extending into lender ; lemm terete , p ilo e

su i u biﬁd m idnerve a s ﬂexuous awn below , the mmit m n tely , the extending into lender longer th a n the bri stle s . n T s s P ereilem a cri i tum s . ype pecie , Pre l

s s u u a a Bri s tles pilose ; globos e cluster of spikelet decid o s from the m in xi s . a Bri s tles scabrou s ; branches of p nicle not deciduous from the m ain axis .

L e mm a abou t mm . long . — Lemm a 2 3 mm . long .

il ili n I. P . ere em a c a m . M ex . P am . 93 1 8 1 . tu Four Gr 86

1 a 93 . 886 . aba . P erei lem a setarioides Fou rn . Mex . Pl . Gr m . (Type from Oriz )

Cul s s a s a at w s ab us a s u as m lender , br nching , pre ding , rooting the lo er node , gl ro , m ch

flat a u 5 0 . a s a s a u s ul . a s s s s l ess a cm t ll ; he th gl bro ; lig e mm long ; bl de , thin , c bro , mo t y l th n — — 7 1 . au at as au s a a s 1 0 . 3 w s 3 . cm long , mm ide , ricled b e , the ricle cili te ; p nicle lender , cm long , a s a flexuo us u s o r ss u a u s s of s s u us the xi ngled , , p be cent , the more le glob l r cl ter pikelet contig o , — a u us a s 3 5 m m . s a st s u us fin lly decid o from the xi , long , the lower c rcely longer ; bri le n mero ,

u —4 wn a u a s 2 . u s a ua a a u s a s as pl mo e , mm long ; gl me gr d lly n rrowed i nto pl mo e bo t long the ub w — a a u 2 . a a u . s a n 5 1 5 . body , tot ling bo t mm ; lemm bo t mm long , p e cent , the mm long .

TYPE LOCALITY : Mexico (specimens cited from Orizab a a nd C 6rd oba . )

: s a s a t u a u s a u a s . DISTRIBUTION Dry h ded ledge , medi m ltit de , Ver Cr z to J li co

1 2 1 2 P i . . B ae : 33 . 30 ere lem a c ini m P esl R el . 8 r tu r , uk

3 1 ilem a n t m v . a r u ci rr a tnm u m . . . 9 . 886 . a P ere c i i a r . Fo Mex Pl Gr m (Sever l specimens cited from a a a n Oriz b d C 6 rd ob a . )

C ul s o r o r ss a and s a at as s a us s m erect more le br nching pre ding b e , lender , gl bro , mo tl y — o - a o r t 2 r 3 20 40 . a s a s us s a u us a as a su noded , cm t ll ; he th gl bro c ber lo le t tow rd the mmit ; — — fl . u s a u . a s at s a us 5 20 . 1 4 w lig le thin , ero e , bo t mm long ; bl de , thin , c bro cm long, mm . ide , usua a a t au as au s a o r s a s o r ss lly n rrowed the ricled b e , the ricle cili te pilo e ; p nicle more le nodding — o r flexuo us 5 20 . a o r u s a s a s a us a s not , cm lon g , p le p rpli h , th e xi ngled , c bro , the br nche de c iduou s s s s a a nd as u as 3 . s s , hort , den el y flowered , the lower often di t nt m ch cm long ; bri tle a u f u s u s a u as as a s o a s a u 1 . bo t long the wn th e gl me ; gl me thin , h y line , oblong , gl bro , bo t mm a u — l a a s a s a us awn 2 3 . a a ua lon g , br ptl y n rrowed into tr ight c bro mm long ; emm terete , gr d lly A RT 7 1 93 7 P , ] POACEAE 5 35

a a as s s - s a t as a s ab u us ab ab n rrowed from ne r the b e , den ely hort pilo e b e , f intly c er lo ove , ou t w . a n s ﬂexuo u s . a a a u as a mm long , the lender , , cm long ; p le bo t long s the lemm a .

a a TYPE LOCALITY : P n ma . : u b u s s s a nd b a g , , s s , a t a nd u a u s DISTRIBUTION Open ro nd r hy lope moi t nk low medi m ltit de , Xl CO a M e to Ecu dor .

H a e nk . l 2 3 : . 3 7 . s : 3 l . a I c . l 3 . . 5 , , ; 8 . ILLUSTRATIONS Pre l Rel p , f Trin p

P r il em a Be richianum n h 3 . e e i c h n c . o U y (Ku t ) H t C tr . . S .

. 24 N at e . 1 92 7 H rb : 3 8 5 . .

r h n u a 63 n M uhlenber a B e ic i a a R ev . . om en nu u 1 2 d m . 9 8 u . 1 200 . 1 E . : 83 gi y K nth , Gr m , ; n m Pl 3 . M m A a - 2 e . . t. P r i li a nnm . é 6 P ereilem a b as S te rsb . . 1 4 : 3 82 . 8 1 . a Trin c d VI (Type from Br zil . )

C ul s a s u o r usual a and s m often r ther to t , erect l y br nching preading a t bas e a nd often root in a t s s a - as u as 1 a g the lower node , often ever l noded , m ch meter t ll ; shea th s scaber ulous ;

fl t - — u a . a s a s a us 5 1 5 . s 2 5 . lig le r ther firm , mm long ; bl de , thin ; c bro , cm long , mo tly mm wide , t as au s s a a — 1 au l a s 5 5 . a s u us ric ed b e , the ricle trongly cili te p nicle cm long , the br nche not decid o , s a o r s s reflexed all u s a as u as 4 . pre ding ometime , except the pper di t nt , the lower m ch cm long , a s a s a us s s a u as as a s o f u the xi ngled , c bro ; bri tle bo t long the wn the gl mes o r shorter ; glumes — 1 . a a us a u a s 3 4 . a a s thin , hy line , gl bro , bo t mm long , the wn mm lon g ; lemm r ther trongl y — — - s a t bas 2 u s s 3 . wn s a a 2 . a a a u as nerved , c bro , hort pilo e e , mm lon g , the cm long ; p le bo t m long as the lem a .

a TYPE LOCALITY : Br zil . O : u s a s a nd s a ba s s a a a a nd ua DISTRIBUTI N Open gro nd , tone w ll , h dy nk , Co t Ric to Br zil Ec dor . 3 as . 2 : l . 1 0 . ILLUSTRATION : M ar t l . Br p

AL E R . . P1 . . 1 7 5 . 1 1 5 O P CU US L Sp . 60 3

1 90 1 . A lo ecuru n 4 2 4 . s r P re . : 7 a est s . ozzetti a ub . L T B ani , Fl y (Type , p g i )

a ass s w ﬂat a n w o r a a s a d s s s l a s . L o moder tel y t ll perenni l gr e ith bl de oft , den e , pike ike p nicle

s l - ﬂo wered sa u a u s s n ss a a u s Spikelet , di r tic l ting below the gl me , tro gly compre ed l ter lly ; gl me

al a ss usua u i at as a o n a a u as as um s equ , wnle , lly n ted b e , cili te the keel ; lemm bo t long the gl e ,

5 - v us a s u a t a s a mi a s sa ner ed , obt e , the m rgin nited b e , be ring from below the ddle lender dor l

awn s u Or s two o r s of s a a a . , thi incl ded ex erted three time the length the pikelet ; p le w nting

T s s s A lo ecurus ra tensi s L . yp e p ecie (elected) , p p

— u a s . Spikelets 5 6 mm . long ; introd ced perenni l b m o nro i a s ta a t a u s s a us . . A . s des . P nicle lender , pering e ch end ; gl me c ro on the keel l y

a s u s s u u s a . 2 . A . atens s . P nicle cylindric , den e ; gl me con pic o ly cili te on the keel pr i — tn a a a A s . 5 . . s a cca s u s 2 4 m m . a Spikelets long (r rely mm in , nn l) ; n tive pecie a Pl a nts perenni l . 1 — a s a ll a b 5 . b u 1 Spikelets den ely woolly over ; p nicle o long , cm long , o t

3 a l inus . . A . cm . thick . p

- a i a b a ss a 1 . . Spikelets not woolly ; p n cle line r or o long line r , le th n cm thick

A wns exs erted 2 mm . or more . — — a i 4 6 . s s ab u A wns ex s erted 3 5 mm . ; p n cle mm thick ; pikelet o t

m m . 3 . long — — a 3 4 m m . s s . A wns exserted 2 3 mm . ; p nicle thick ; pikelet mm

long . A wns s ca rcely e xceeding the glum es . a a Pla nts nnu l .

a s . Spikelets 2 mm . long ; p nicle den e n nu l a . A . a ro s 7 . c a s . . Spikelets 2 mm . long ; nther mm long i i

H owell . 8 . A . a s a b u 1 . . Spikelets 3 mm . long ; nther o t mm long ii — tns . A . s a cca 9 . a a s . Spikelets 4 5 mm . long ; p nicle rel tively loo e

2 n l . 23 . 1 7 6 . PI. l ec s m osuroide s s . 1 . A op uru y Hud A g

62 u 1 : 89 . 1 7 . E 2 . A lo pecur us a gr esti s L . Sp . Pl . ed . (Type from rope )

A lo ecu us a est s . 1 0 1 . as L 4 2 7 4 . 9 P ren. : t ub a . ) Tozzetti a agres is B ni , Fl y (B ed on p r gr i

— u o r cu at as s t s a us 1 0 5 0 . a ; Perennial ; culm s t fted , erect de mbent b e , ligh ly c bro , cm t ll — - l acu s u a 2 3 . a s ﬂat a us a ua sheath s gl abrou s ; ligu le ero e tr nc te , mm long ; bl de , gl bro , gr d ly — — — w a s s s a a n at a 4 1 0 a 5 1 5 . 2 3 . ; , g , min te , cm lon g , mm ide p nicle lender omewh t t peri e ch end 5 36 NORTH AMER I CAN FLORA [VOLUME 1 7

— 6 m m. s w 3 3 5 . u s s a us cm . long , mm wide ; gl me lon g , pointed , whiti h ith green nerve , gl bro ,

a us on s - a at a s a a u as as u s awn sc bro the keel , hort cili te b e ; lemm bo t long the gl me , the bent , — exserted 5 8 mm .

’ ' a l\P E LOCAL ITY : E ngl nd . : s as a s and ba as u a i a a as DISTRIBUTION Field , w te pl ce , ll t gro nd , M ne to North C rolin ; W hington

a nd u a a E u as a . Oregon ; introd ced , r re ; n tive of r i n 6 B M a . . 7 0 . ILLUSTRATION : H itchc . f

i s . P1. . 1 2 l ec s atens . 60 7 5 3 . . A op uru pr L Sp

— 2 - 30 0 m n a u s a us a u 8 c . a s a s a us s Peren i l ; c lm erect , gl bro , bo t noded , t ll ; he th gl bro , horter a a ul u a 1— a ﬂ a es u s 2 . s a t th n the inter nod , the pper omewh t inﬂ ted ; lig e tr nc te , mm lon g ; bl de ,

— — - 2 6 . u s u a s s s a us 5 1 5 . c bro , cm long , mm wide , the ppermo t red ced ; p nicle long ex erted , oblong , — — 1 0 . t u 3 7 . 7 u usua s a a a s s 5 . us lly c rcel y n rrowed mmit , cm long , mm thick ; gl me mm long , villo

o n and u s on s s a a us a u as as u s awn the keel p be cent the ide ; lemm gl bro , bo t l ong the gl me , the

a a a as i u a s . tt ched ne r the b e , gen c l te , ex er ted mm

TYPE LOCALITY : E u rope . : s a nd as a s u a and L ab a Al as a and s u a DISTRIBUTION Field w te p l ce , Newfo ndl nd r dor to k , o thw rd d u a u as a a a a a an E . to Del w re , Iow , Id ho , Oregon ; introd ced ; n tive of r i

A 2 : . 7 4 u . . A A o . 7 7 . . r . s t 1 1 u . . . . r . S r : . ILLUSTRATIONS : B ll U S Dep g f ; B ll U Dep g g 7 f 6 .

l s al in s m i h n l 3 . ec . A op uru p u S t , E g 1 l . 1 1 2 5 . 03 . B ot . p 8

1 20 A a r orea l . u . A ro s t. 5 8 . 8 . s and A lopecu us b i s Trin F nd g (Type from i North America . )

nt l s b . . a z . 1 1 1 7 0 . 1 8 A lo ecurus occ de a S G : 86 . l s p i i cri n Tweedy , Bot (Type from Ye low tone

a a a Tweed . N tion l P rk , y ) 6 7 n a u . o c . . . 6 : 298 . 1 920 . A lo ecuru behr in i a ns . S t s S . au s a p g G nd B ll Bot Fr (Type from P l I l nd ,

A lask a . )

i a u s o r O u at as w s s a Perenn l ; c lm erect ften dec mbent b e , ith lender creepin g rhizome , r ther

- — s f and us l a u s 2 a as 1 0 80 . a s a s a us ti f r h ike , gl bro , noded , the lower ne r the b e , cm t ll ; he th gl bro , s a s u s s a a u u a 2—3 horter th n the internode , the ppermo t often omewh t i nﬂ ted ; li g le tr nc te , mm . ' f cul s 1 0 — a s ﬂat s a us s o ss a . 3 5 w long ; bl de , c bro , tho e the m mo tl y le th n cm long , mm . ide ;

- — — a i es s o r O 1 3 . a u 1 u p n cl long ex er ted , ovoid blong , woolly , cm long , bo t cm . wide ; gl mes 3 4 a a u a s as u s a w u . us s a mm long , woolly ; lemm bo t long the gl me , gl bro belo , p be cent bove , the

w a s s s o r as u as a n a a a 5 . tt ched ne r the b e , ex erted lightl y m ch mm

a TYPE LOCALITY : Scotl nd . : u a a s a nd a b s a A a s a and s u a DISTRIBUTION Mo nt in me dow long rook , Greenl nd to l k , o thw rd in a a a a a nd u a the Rocky Mou nt ins to Color do ; ls o in rctic northern E ras i . 1 A 1 3 l . 2 1 . 4 u . . . A A : u . S . . r . . : . S r . ro . st 7 : . 1 1 7 ILLUSTRATIONS B ll U Dep g Bot p , ; B ll U Dep g g f ; 7 9 2 H . M an. . 0 . 1 7 : f. 45 ; itchc f A lo ecurus r atens s a a al estri s a . NOTE : Vas ey misa pplied the n me p p i v r . p W hl to thi s species

t. H b . 3 : 86 . . N a (Contr . U . S er

l s alle scens Pi e i 4 . ec P e ea ie A op uru p p r ; p r B tt ,

l e 1 . 1 90 1 . Fl . P a s 8 ou R eg .

al u a — u s o r w s ul a a us 30—5 0 Perenni , t fted , p le green ; c lm erect the lo er node genic te , gl bro , a a u . a s a s a us u s a u a a s cm t ll ; he th gl bro , the pper omewh t i nfl ted ; lig le thin , c min te , much a s — fl a t a us o n u su a 1 5 . w 7 . a s s a s a mm long ; bl de , c bro the pper rf ce , mm ide ; p nicle fin ll y long — — 4 . u a u 3 . i s a 2 7 . 6 s a o n a ex erted , p le , cm long , mm wide ; gl me bo t mm long , c li te the keel , p

ss - ub s o n s s a a u as as u s a us awn a a pre ed p e cent the ide ; lemm bo t long the gl me , gl bro , the tt ch ed —

5 . a a 2 . a as i ul a s 3 s . ne r the b e , gen c te , ex erted mm ; nther or nge , m m long

: u a as i er TYPE LOCALITY P llm n , W hington (P p : E s s a nd a s a a s and a a DISTRIBUTION dge of pond wet pl ce , Id ho to W hington northern C liforni . H M a n 1 1 7 . ILLUSTRATION : itchc . . f.

i n c l a . . 1 l ec s e s P . 60 . 1 3 5 . A op uru g u tu L Sp 7 5

P r n 4 2 7 5 1 0 1 l 9 . as A o ecurus n ul Tozzetti eni cnla ta uba . e . : . e a c atus . g B ni , Fl y (B ed on p g i L )

a u s s al - u o r - u at as a t Perenni l ; c lm ever noded , dec mbent long dec mbent b e , rooting the 1 0— a a s ab us 5 0 . s s a s a us usu lower node , gl ro , cm long bove the rooting b e ; he th gl bro , all y no t A T 7 1 93 7 A P R , ] PO C EAE 5 37

nﬂ a 2— — u 3 . a s s ab u us 1 4 i ted ; lig le g ; . a s a u a s A mm lon bl de c er lo , mm wide ; p nicle bo t in . ae uali s - s s a u . a u awn q ; pikelet bo t mm long , the tip d rk p rple ; of lemm a abou t as long a gain a s s a s a u D f . . e ; g g A . a uali s bas the pikelet nther bo t mm lon if erin from q i n the longer rooting e , u - s s a nd s u us awn the p rple tipped pikelet , the more con pic o , giving the p a nicle a softl y bristl y appearance .

: u TYPE LOCALITY E rope . : a a nd a s u a Sas a DISTRIBUTION In w ter wet pl ce , Newfo ndl nd to k tchewa n a nd British Col umbi a and s u a u a N w g E g e , s a nd a a nd u o thw rd thro h New n l nd to York New Jer ey , Virgini , thro gh Wash i n to n a i i a a a a A a a s u a s a g to C l forn ; Mont n ; Color do ; rizon ; l o in E r i . A : u . S . . r . A . t. 7 : . 1 1 H ro s 5 . a 7 1 ILLUSTRATIONS B ll U Dep g g f ; itchc M n . j. 5 .

l 6 . ec s ae alis l . P Fl . 1 e . 1 6 . 7 99 A op uru qu Sobo trop .

uru r i stnl atns lo ec s a . . . A m . 1 A : 43 . 1 803 . a a a M h p Michx Fl Bor (Type from C n d , i c a ux . ) e ur us ulvus l 1 46 A lo c S . . 0 7 . 1 8 E . 5 . a p f mith , ngl Bot p (Type from Engl nd . ) uru nbari statn n A lo ec s s s s . . 1 0 . 1 S . : 8 805 . p Per y Pl (Type from C an ad a . ) l ecur us en culatu a n t A o s v r . a ans a . . 22 . 1 a . 2 L 8 1 . a a p g i W hl Fl pp (Type from L pl nd . ) u us en cul tu va A lo ec a s r . a r istnlatns . l 9 7 . 1 2 . . S . : 8 3 . as A a r i s tnl atns Nl i h p r g i Torr Fl U (B ed on c x . ) I A lo ecurus caes tos us . c . l . 241 . 1 830 . s A a D ou las . p pi Trin p (Type from Northwe t meric , g ) ecur us en cu latus a l A lo v r . n vn a a a 1 2 42 . 1 s S r : 4 . L 83 8 . as A u lvus . p g i f ch d inn e (B ed on . f Smith ) e u us en cula tus va bustu as lo c r . ro A s u . ub 1 5 : 1 3 1 88 . p r g i V ey , B ll Torrey Cl . 8 (Type from V a n u s a M co n a n . co ver I l nd , ) lo ecurus H owell va M e r m n a A i a i as s s . m A r . 2 : 2 7 1 . 8 8 . 96 . p i i r Be l , Gr e N (Type from Pribilof “ “ ” s a s A as a H M m n M err a err a m . I l nd , l k , C . . i [error for i ]

A lo ecuru H owell i va M m i a . . s r . erri a a u . . a F u a if 3 5 7 S r S s . P ac . : 3 p i Be l ; J M M co n , in D Jord n , e l N

1 899 . a M err m n a v i a i . (Correction of r . Be l ) 7 A lo ecurus ar i stnla tn a n n 61 4 s v r . ata s s A r k . . : . 1 90 7 . n cul tu va . S as A . e a s r p immon , Bot (B ed on g i n nata s Wahl . ) T zz ll A m M i l a 2 1 1 tti a ulva une . d . t. 4 : 6 . 9 1 5 . as A . ulvus o e L N S . f , (B ed on f mith ) r u l t v M r m r i a i . a n. . 1 2 6 A lo ecu s a istn a ns ar . er t 2 C s : 42 . 1 9 2 . S . as p John , Mem Dep Mine (B ed on H w ll a M e o e i v r . rr i a m i a . A . i Be l ) A lo e l a a a 2 1 1 2 ru na tans 7 : 98 . 9 5 . as A . en u l u ecu s a ua s v r . t a ic a s v r . p q i Fern ld , Rhodor (B ed on g n atans W ahl . )

P n a u s o r s a usual at s 2 3 - a us eren i l ; c lm erect pre ding , l y rooting the node , or noded , gl bro , — 1 5 60 al a a u usua no t a u ru s s s a a u 3 . cm . t l ; he th gl bro , lly inﬂ ted ; lig le t nc te , bo t mm long ;

—4 u no t u u a s o r a s s s a us 1 . ss bl de l i ghtl y c bro , mm wide , the pper m ch red ced ; p nicle more le — 4 . u a u . a u 2 a s s 2 7 s . ex erted , lender , cm long , bo t mm wide ; gl me bo t mm long , cili te on the

e s a ss - u s o n s s a a us a u as as u s awn ke l , ppre ed p be cent the ide ; lemm gl bro , bo t long the gl me , the

a a m l s a o r s u a u e o r s a u 1 . tt ched below the idd e , tr ight lightly genic l te , incl d d ex erted bo t mm ;

a u 1 . a nthers bo t mm long .

TYPE LOCALITY : Greece . : a a nd a s a A as a a nd s u a s a a DISTRIBUTION In w ter wet pl ce , Greenl nd to l k , o thw rd to Penn ylv ni .

l s a sas a nd a a a s E u as a . I linoi , K n , New Mexico , C liforni ; l o in r i

M an . . 7 1 3 . l 2 1 H . I c . . 4 ILLUSTRATIONS : Trin . p ; itchc f

l ia s l . Fl . a l . 7 4 . 1 l r s ca in n a 7 8 8 . 7 . A op ecu u ro u W t C ro

7 6 . 1 808 . a a . . 8 7 am . : A lopecurus ram os us Poir . in L E ncycl (Type from C rolin ) 1 - 6 m A a . t P éter sb . . 3 8 . 1 8 40 a a . M e . S . : . A lopecur us gr a ci li s Willd . ; Trin . c d VI (Type from C rolin )

1 888 . O ak B a a u b 1 5 : 1 2 . A lo ecurus M a connii as u . u p V ey , B ll Torrey Cl (Type from y , V nco ver

s a M aconn. I l nd , ) 5 a u a t. a n. PI . 2 3 89 1 890 . u S b . . C C : . A lo ecurus en cu latus var . caes tos s p g i pi cri n in M co n , (Type

a s u b a M a conn. from Y le , Briti h Col m i , )

1 9 : 1 67 1 9 1 7 as 1 1 A a m os us . h a . . 0 m osu t. A lo en cu l tu var . ra s S pecurus g i a s Jo n , Rhodor (B ed r Poir )

A ua u s u u a at as o r o r ss s a a u s nn l ; c lm t fted , m ch br nched b e , erect more le pre ding , gl bro , — —5 0 a s a s a us u s es a n a u s 3 4 1 0 . cm t ll ; he th gl bro , the pper ometim little i ﬂ ted ; li g le mo tly mm

- o f a s ﬂat s a us s 2 4 . a s usua s a s long ; bl de , c bro , mo tly mm wide ; p nicle ll y more lender th n tho e

- A no t u awn o f a ab u a s . A eni cnlatits u s 2 . a . g ; gl me mm long , p le , p rple tipped ; lemm o t in geni cula tus; a nther s mm . long .

a TYPE LOCALITY : Sou th Ca rolin .

s u s and a s s s u b a . DISTRIBUTION : Moi t open gro nd , old ﬁeld , wet pl ce , New Jer ey to Briti h Col m i

nd a a as A a a nd a n a . a s ou thw rd to Florid , Tex , rizon , C lifor i

1 7 . M an . . 7 ILLUSTRATION : H itchc . f 5 38 NORTH AMER ICAN FLORA [VOLUME 1 7

l H wellii a e ll . T e 1 5 : 1 l ec s s 2 . 1 88 8 . 8 . A op uru o V y , B u orr y C ub

1 b 5 : 13 . 1 888 . a a ur u a l orni cus as u . u S u a r a A lopec s c if V ey , B ll Torrey Cl (Type from nt Cr z , C lifo ni , n A nderso . )

— u s or u a a us 1 5 3 0 . a a a A nnual ; c lm erect , genic l te below , gl bro , cm t ll , often dw rf ; she th s — n l 5 - u u o r ss a u 3 . a s ﬂat s a us l 2 gl abro s , the pper more le i ﬂ ted ; lig e thin , mm long ; bl de , c bro ,

s s as u as 4 . a s to a s o r s mm . wide , ometime m ch mm ; p nicle oblong line r , ex erted , e pecially i n — — 4 7 . a 2 6 . m m s u at s u s 3 . a dwa rf specimen , incl ded b e , cm long , mm wide ; g l me long , cili te

a ss - s o n a a s a a us a s a o n the keel , ppre ed pilo e the l ter l nerve ; lemm gl bro , little horter th n the — a u 1 . as u a 3 5 u s awn a a s . a s gl me , the tt ched bo t mm from the b e , genic l te , ex erted mm ; nther

a u 1 . . orange , bo t mm long

: H owell TYPE LOCALITY Medford , Oregon (

: a s and a a . DISTRIBUTION Wet pl ce , Oregon C liforni 1 A r 1 3 l . 2 7 H M n . . . a 7 1 9 u . . S . : . . . . ILLUSTRATIONS . B ll U Dep g Bot p ; itchc f

tus a e . az . 6 2 l e c s sacca s G : 90 . 1 1 8 8 . 9 . A op uru V y, B ot

H owe lii w m a no t s u a o A . l s a w Simil ar t , from hich it y be di tinct ; c lm ver ging lo er ; p a nicles — — s s - s o r a u s 4 5 m m ss s . wn 2 4 . a cm long , le den e , hort ex erted p rtl y incl ded ; p ikelet long , the — a s 1 . . ex serted 5 8 mm . ; nther mm long

TYPE LOCALITY : E as tern Oregon . 0 : a s a u bi a i as i and a n a DISTRIBUTION Wet pl ce long the Col m r ver , W h ngton , Oregon , C lifor i

(Colusa County) . A 1 1 l 2 3 : . 8 H a 2 S . . r . . . . . 7 0 . ILLUSTRATIONS : B ull . U . Dep g Bot p ; itchc M n j n — d e c k . 2 45 . 1 82 1 A a . u t 0 40 A R E : . u u s 1 a LOPECU US CRETICUS Trin Ne e nn l ; c lm cm . t ll ; - a s a w a t a s s s a 4 . u s s p nicle den e , n rro ed e ch end ; pikelet wed ge h ped , mm long ; gl me ﬁrm , the keel b a a su a a u a awn a E bas . ro dly winged tow rd the mmit , cili te ; lemm tr nc te , the from ne r the e TYP a v : . R : as a a a u . LOCALITY Crete DIST IBUTION B ll t , Phil delphi ; n ti e of E rope

EA n D . LI N ewe . . . 1 1 7 . M O N at. e . L D y , Co tr U S H rb 1 2 : 5 8 . 1 894 .

1 42 1 Am . . oc . . S: . 837 . C . ar n n u n a S ka sa a . e Gree i a u . s . Gr ened N tt Tr n Phil II (Type , N tt ) Not m 1 834 Greenea and Greeni a b a a a A . a Wight ; were oth n med for Benj min D niel Greene ,

botanis t of Boston . 2 “ - Pé M em . A a . t. tersb . . 6 : 2 3 1 84 1 S 7 . . n Sclerachne . . S Gree i a Torr ; Trin c d VI ( elected type ,

1 838 . n Sclerachne . . arka nsa a . ) Not R Br n 1 5 8 1 88 1 . Gree i a arkan n . . 9 T urb Thurberi a u . . Soc : . sa u . h eri a Benth Jo r L inn (Type , a N tt ) Not

A a 1 85 4 . . Gr y ,

- A s a ua w ﬂat a s and a a s . S i s l ﬂowered disarticulat lender nn l ith bl de n rrow p nicle p kelet , in u s a a a a as a s s s g below the gl me , the r chill prolonged behind the p le hort , lender bri tle ; glumes

ua a a a us s ss 2 - at a a n eq l , ﬁrm ; lemm membr n ceo , mooth , nervele , toothed th e p ex,be ri g from

a s awn s at as a a a s a between the teeth lender bent , twi ted b e ; p le little horter th n the lemma .

T s s Greeni a a rka nsa na utt. yp e p ecie , N

we k . . n nsana e . . L a a . im nodea at. 1 . N r ( utt ) L D y , Co tr U S N

2 : 5 1 . 1 94 . H erb . 8 8

m 5 1 42 . 1 8 A . . oc . . : 37 . a s . S Greeni a arkansana N utt . Tr n Phil II 2 m A a - Pét b 6 n M e . . t. ers . . : 2 7 4 1 n . 4 S 8 1 . Scl er ac hne arka s a a Torr . ; Trin . c d VI (B as ed on Greeni a

arkansa na N utt . - 2 m A a . t. Pétersb . . 6 : 2 7 5 . 1 84 1 M e . S . Sclera chne lo sa . T p i Trin c d VI ( ype from Texas . ) 2 2 . : 4 . 1 84 1 . as u . . 5 Gr L i m nas arkansana . S . . eeni a arkans ana u Trin ; te d Nom Bot ed (B ed on N tt . )

1 3 1 . 1 85 4 t h . a . . a s D S a dem ss a u . S rnm m ond 6 S 4 5 . ip i te d y Gr m (Type from New Orle n , 0 n a . 1 8 . 1 85 4 S . . as . M nhlenbergi a hi rtnl a Steud . y Gr m (Type from Tex )

n a 42 1 . 1 85 5 . as cle chne S ra losa . L i m nas p i losa Steu d . Sy . Gr m . (B ed on pi Trin )

as . 1 6 . 1 883 . s Thurber a arka nsana . as s s S . a Greeni a a rkansana i Benth ; V ey , Gr e U (B ed on Nutt . ) 1 88 . 3 . as ler Thur ber a losa as as s s . S 1 6 . Sc achne i losa ri n i pi V ey , Gr e U (B ed on p T ) A . A r l b . u . . . r 7 . 3 . 1 3 0 L i m nodi arkansan osa S . ost. 9 1 9 0 . as a a pi Scri n B ll U Dep g g : ed . (B ed on Sclerachne pilosa Trin — l a as a us s 3 o r 4 - 20 40 a Cu s a t . s at s a m br nching b e , gl bro , mo tly noded , cm t ll ; he h gl brous

a s s u a o r — o r s u s s s a a 1 2 . lightly ro ghened , ometime p r ely p ilo e ; lig le thin , dent te l cer te , mm long ; or s o n su a s — n —4 a s o r ss u s s 5 1 0 . a d 2 bl de more le p be cent pilo e both rf ce , mo tly cm long mm . AR T 7 1 93 7 C P , ] POA EAE 5 39

w a s a but 5 — 1 — s 5 . s s 4 ide ; p nicle n rrow loo e , cm long ; pikelet . g ; g u s s a us mm lon l me c bro , s u us o r s a a u as as u s a wn 8— 1 0 p ; . hi id lo pilo e lemm bo t long the gl me , the mm lon g .

W P E : A a sas . LOCALITY Red River , rk n : s ai s and a , b s , as a a a as A a DISTRIBUTION Dry oil pr rie river nk Co t l Pl in , Florid to Tex , rk nsas , a nd a a Okl hom . : A u . . . r l 9 S. . . . u . D e A . S . . r A t g ; . ro s . 1 ILLUSTRATIONS B ll U Dep Bot p B ll U p g g 7 : f. 33 ; 2 0 5 5 a : . s var lo a . s . A r . . u . . 2 3 H S 7 7 z . 7 . M a n . 4 7 . f (C , pikelet of p i ) ; B ll U Dep g f ; itchc f. 0 NOTE : The variety pilo sa differs only in having pilose ra ther tha n his pid ulous or sca brous u gl mes ; the two forms grade into ea ch other .

1 1 I N N 8 . C A . . P 5 1 7 . l . 5 3 L Sp .

b F am . . 5 1 1 . 1 7 6 A ola A a s . 3 as nn d n Pl . (B ed on Ci a L . ) 90 1 inna trnm u . . a . 8 C s . . 86 . S D e enxi a oa e o rm i s Fo rn Mex Pl Gr m ( elected type , y p f

T a a ass s w flat a s and a ul a n s - . S s l flowere ll perenni l gr e , ith bl de p nic te i flore cence pikelet d ,

sa u a u s a a m a s ﬂo di rtic l ting below the gl me , the r chill for ing tipe below the ret and produced

a a as a s o r mi u s u s ua o r su ua 1 o r 3 - behind the p le hort n te bri tle ; gl me eq l beq l , nerved ; lemm a

s a to u s a as 3 - a a u s s a awn imil r the gl me , ne rly long , nerved , be ring min te hort , tr ight j us t below

th e a a o i s a ss C. ae orm a l ss s s a pex ( wnle i n p f , r rel y wn e i n the other pecie ) ; p lea app arently l

two s s o r l - keeled , the nerve ver y clo e together , nerved .

Ci nna a rundi nacea T S s . ype pecie , L

b us 2 S s s . a a a s a pikelet o t i h , mm long ; prolong tion of the r chill lender , ne rly

a as as a . 1 . . oa e orm h lf long the lemm C p f i s . u — a a a u S s a 5 . . pikelet c te , mm long ; prolong tion of the r chill min te —4 a b a 2 . . lat l a . S s . s a s s o pikelet mm long ; p nicle loo e , the r nche pre ding or drooping . C if i

5 tii . a a s b a as 3 rund n S s s . . . a i acea . pikelet m long ; p nicle r ther den e , the r nche cending C

1 . f r i n . l l . e . . . D e Cinna poae o mi s S cr b . M rr B u U S p

A r . 2 : 2 1 . 1 90 1 Agr . g o st 4 .

D e xi m n a oa e or i s H . E K . . . . 1 1 46 . 1 8 1 5 e 81 : . y p f . Nov Gen Sp D e enx o e orm P oa snbnni lora u R é v a 1 1 1 29 . as a i 5 . 8 i a s j K nth , . Gr m . (B ed on y p f nn 1 . 1 8 . C i astrnm m li a c m . a 8 . . 9 6 . i en Four n Mex . Pl Gr m (Type from Mexico ) nnastr a 1 a D e enxi oae or m i s i n e m . 9 1 886 . s a C m poa for e Four n . Mex . Pl . Gr m . (B ed on y p f

C u s e or as at as a us o r s s s u 3 or 4 - lm rect cending b e , gl bro ometime lightly ro gh , noded ,

usua 1 s a s a s s a us u s ab us a u o r ss r ll y meter t ll ; he th c bro ; lig le ﬁrm , c ro , c te , more le ne ved , — u a 1 l x 1 0 25 . as s . a s s a us s a a a t as a a m ch cm long ; bl de c bro , omewh t n rrowed b e , r ther , cm long ,

1 u 40 s a as u a s . a a as as . s m ch cm wide ; p nicle n rrow , open , m ch cm long , the lender br nche

a o n a as s a us ﬂ exu ou s s a o r as u n ked the lower h lf , f cicled , c bro , , pre din g droopin g , the lower m ch

1 0 u 2 a 3 as . a s a us s a us a s s s s cm long , the xi gl bro below , c bro bove ; pikelet obt i h , (r rely )

f ab u 3 - a . a on u a o a s u s s s mm long , r ther crowded the pper h lf the br nche ; gl me c ro , nerved ; lemm

5 - a ss s a u us a a a a s a m a 2 - nerved , wnle , c ber lo ne r tip ; p le little horter th n the le m , keeled , the

- s s a s s a w a at a . a keel clo e together ; c ryop i d rk bro n , n rrowed e ch end , mm long ; prolong tion f o a a s a us a u a as as a . the r chill lender , gl bro , bo t h lf long the lemm

M u : u . TYPE LOCALITY o nt Jor llo , Mexico — : s and s ba s 2000 3000 s a i u i u . DISTRIBUTION Wet thicket moi t nk , meter lt t de , Mex co to Per

1 85 3 . 2 . 4 : 435 . l e . Fl . R ss . T ri . in e Cinna atifolia ( rev . ) G seb L d b o

A rosti la t 1 830 . s ol a h a s au 82 . G o . B e c r . . g if i Trev . ; p p s Bot . G rt Bre l

i nna ex a ns a H s A i a . 2 : 23 6 . 1 833 . L . . C p ink , ort Berol (Typ e from We tern North mer c ) 2 nna endnl - a s i a Si a i a M m 6 2 0 1 84 1 . e . A a . t. Pétersb . . : 8 . , , C p Trin . c d S VI (Loc litie c ted , Norw y tk a B a ik l . )

n n as nna endnla i . i na arundi ce a nd l 2 . 45 . 1 85 6 a A . a M an. . 5 . a v r . e u a ) C p Gr y , ed (B ed on Ci p Tr n . nna end 1 884 as i ula m r A a 1 8 8 4 : 290 . . var . lo e nla r b . a . . , Ci p g Sc i n . Proc c d Phil (Type from W h ngton Tweed y . ) nna B olan r 4 2 0 1 8 84 a a B o la nder Ci de i b . . A a . a . 1 8 8 : 9 . . Scri n Proc c d Phil (Type from C liforni , 6o B ol a nder i 1 92 . as . nn e l a H b 3 5 7 . 8 i a ndu a var . Bolander as . . N t. . : i . S C p V ey , Contr U er (B ed on C

Scribn . )

2 us ck . n a H 3 7 . 1 89 . m nt ca . . . t. b . : 5 i na endula va r . i as S N , ) C p V ey , Contr U er (Type from Oregon C i

Cu s or u at as s a ul us th e s 3 5 - 1 s lm erect dec mbent b e , c ber o below node , or noded , meter

a a a u us ul s a ul us a u s a a ab u 1 . t ll ; she th s sc ber lo ; lig e nerved , c ber o , c ti h , l cer te , o t cm long ; 5 40 NORTH AMERI CAN FLORA [VOLUME 1 7

— 1 o r n a s s a us 1 0 2 0 . as u as . . a usua bl de c bro , cm long , m ch cm eve cm wide ; p nicle ll y green , — a u w s a us a s 1 5 40 . a s s a s s oblong , loo e , cm long , the xi gl bro belo , c bro bove , the br nche lender ,

a s a ﬂ exuou s as s a u s a s a o r w r ther di t nt , , f cicled , c bro , n ked below , pre ding droop ing , the lo er

— - s 4 . a u u s s a u us l a u a s 20 . s s s m ch cm lo ng ; pikelet mm long , c te ; gl me c ber lo , the ﬁr t nerved ,

a a 3 - a a 3 - a s r a um s the second r ther f intl y nerved ; lemm f i ntly nerved , little horte th n the gl e ,

wa a a 2 - w a u as 1 . s s s s to the a n s m ch mm long , ometime nting ; p le nerved , the nerve very clo e gether ; prolonga tion o f the r achill a minu te .

TYPE LOCAL ITY : E urope . : s s u a a nd L ab a A a s a a nd s u a C o n DISTRIBUTION Moi t wood , Newfo ndl nd r dor to l k , o thw rd to ne c ti cut u a s a a a s S u a a m u a s , in the mo nt in to North C rolin , to Michig n , Illinoi , o th D kot . in the o nt in nd a a i a a s a a E u as a . to northern New Mexico , to Ut h centr l C liforn ; l o in northern r i

A r . A ro st. 1 : . 47 7 u . 7 . x a l . 2 9 . . . t . : 4 . . 5 ILLUSTRATIONS : B ull U S Dep g g f ; B ll Tenn . E p . S 7 p f

1 B . H M an. . 7 0 itchc . f

inna a n inacea . . I. . 1 P 5 7 5 3 . 3 . C ru d L Sp

1 89 . as i nna a rund n 5 : 1 8 . 7 i a cea . n O bs . A grosti s Cin a Retz . (B ed on C L )

7 9 1 . a n 1 1 2 . 1 . 6 s i na arund nacea . Tab . : A grosti s Ci nna L am. Encyc (B ed on C i L ) 1 n n a rund n e . A m . S . : as i a ac a A rosti s nna u s . L g Ci P r h , Fl ept (B ed on C i Willd error for ) iﬂ 1 1 1 4 9 . 82 as A r t nn a m Un . o i a s i s a . M u hlenbergi a Cinna Tr i n Gr m . (B ed on g C L )

n va inex ans a a 8: r s a 3 7 1 3 5 1 935 . inna a rund acea r . : . C i p Fern ld G i com , Rhodor (Type from

a F ernald Eff L on 3 648 . Virgini , g

C ul s a us s a - s as a as usua y 1 s a m erect , gl bro , ever l noded (node m ny ll meter t ll ;

a a us o r s a u us s a ul s w a s a u us she th s gl bro c ber lo , mo tly overl pp ing ; lig e thin , nerved , ome h t c ber lo ,

l u o r a s a a a u 1 . a s a a as s a u s oon deepl y l cer te , bo t cm long ; bl de n rrowed tow rd b e , c ber o ne rl y nd s o n su a s s a us on a s s a 1 5 . a s mooth the rf ce , c bro the m rgin , mo tly more th n cm long , mo tly

- — ﬂowere d a 1 5 3 0 . ss a 1 cm . a a a s a s le th n wide ; p nicle n r row , m ny , r ther den e , gr yi h , nodding , cm

a s as s a asc icle ﬂoriferous a to as s s a u long , the br nche cending, ome i n e ch f ne rly the b e ; pikelet c te ,

’ u a u u a a u s a u on s a s a u us o n 5 . s s s mm long ; gl me omewh t neq l , c te , c bro the keel , omewh t c ber lo

s s s l - s 3 - a u sua a u a s as s the ide , the ﬁr t nerved , the econd nerved ; lemm ll y bo t long the econd

u a us a a u s a awn a a a a l -n gl me , gl bro , be ring below the tip min te tr igh t ; p le pp rentl y erved ; p rolon gation of the r achill a m inute .

TYPE LOCALITY : C a na da . : s s a S u a a a nd s u a a a nd as DISTRIBUTION Moi t wood , M ine to o th D kot , o thw rd to Georgi e tern

Tex as . 2 H A r . A ro s t : 1 34 u . . A . 7 2 : . 7 . : . . 7 7 . . . r ILLUSTRATIONS B ull . U . S Dep g g . f ; B ll U S Dep g f ; itchc

M a n . 7 0 1 . . f

1 1 LY l n 1 1 7 98 . N . P O PO GO e f. Fl . a . : 66 9 . D s At t

2 8 : 47 9 1 7 99 . . lnm osa Sa . nt a . c . a a S Sa a S So . . i vi , Mem It l Moden (Type , p vi R as ali a R H a nk l 1 830 R a ros toides s . li a e . 1 : 238 . . 40 . . . as ai s . p Pre l , Rel p (Type , g Pre l ) Not p B n n 1 2 ro g . 8 6 .

R l s . N ow wo a . H a nk . l 35 1 1 830 . as as a i i a od rsk s e : . y Pre l , Rel (B ed on p Pre l )

A u a or a usua u ass s ﬂat a s and ns s s nn l perenn i l ll y dec mbent gr e , with bl de de e , bri tl y , pike

i l - ﬂ ow r d a u a a s a w like p a nicles . Sp kelets e e the pedicel dis rtic l ting short di t nce belo the

u s a a s - a us a a u s ua o r 2 - aw gl me , le ving ho rt pointed c ll tt ched ; gl me eq l , entire lobed , ned from

o r s awn s s a a u s a the tip from between the lobe , the lender , tr ight ; lemm m ch horter th n the

u s a u sua a a s s a awn s a a s of u s . gl me , hy line , ll y be ring lender tr ight horter th n th e w n the gl me n T s s A l o ecurus m o s eli ensi s . ype pecie , p p L

a Pl a nt s annu l . b Gl umes slightly lo ed . u s b b s a - Gl me prominently lo ed , the lo e cili te fringed . a a Pl nts perenni l . — — 5 0 1 5 0 . a a s 1 5 30 . a s s u s . Pl nt to t , mo tly erect , cm t ll ; p nicle cm long — 1 a s u a a s 5 5 . . Pl nt lower , often genic l te ; p nicle cm long — iff a nd a . A wn s ra ther st str ight ; glumes 3 mm . long A x — l s a ﬂe uo us u s 2 . . wn delic te , ; gl me mm ong

5 42 NOR TH A M ERI CA N FL ORA [VOLUM E 1 7

4 . P l n li ali s m i h m . Fl . i . 1 3 1 1 . 2 . 8 o ypogo ttor S t , Co p Br t e d . . 6

. 3 . 2 : 1 29 . 1 7 9 . A . l ttor li a m 1 r o st s l tt l s . . . 6 7 9 1 . A g i i ora i With Brit Pl ed Not i a s L . 1 2 m . . u . : 49 . 1 8 1 0 . as A l tt r l r t lntosa . a o a s . A g os i s Poir in L E ncyc S ppl (B ed on . i i With )

lnto s B au v . A ro st. 1 6 1 48 1 8 1 . 1 8 1 2 . as A rost lnto Vi l a a e s sa . f g , , (B ed on g i Poir )

n nterru tu H . E K . . l 1 34 . 1 1 o S : 8 5 . u a . P olypog i p s . . Nov Gen . p (Type from Venez el )

n u a . u 5 49 1 u u r u m . . : 5 . 1 8 7 . as P ol o on nter u tu A lopec r s i te r pt s Poir . in L Encyc S ppl (B ed on yp g i r p s

A l n tosns H u . . . . r . 2 13 8 1 20 r n o n . : l t n 9 . as A ost s s s . P o ypogo l itchc B ll U S Dep g 7 7 . (B ed on g i Poir )

— t a u 3 0 0 - a u s u u a a as s 8 . a 2 or 3 or Peren ni l ; c lm t fted , genic l te b e , gl bro , cm t ll , noded , , in a u a a s s a - s a s a us u s s ﬂ a u t ll genic l te pl nt , ever l noded ; he th gl bro , the pper ometime in ted ; lig le

' — o r u s s a ul us a at a s or s 2 5 . s mm long the ppermo t longer , c ber o , nerved , l cini e ; bl de more le — — l 4 6 . s a us 5 1 5 . o r ss u or c bro , cm long , common y mm wide ; pa nicle oblong , more le i nterr pted — — 3 m m — 5 1 5 . u s u s . s a u 3 5 s a s . lobed , cm lon g , often p rpl i h ; gl me long , c bro , the w n mm long ;

m a s and s 1 . u at t u a a awn le m mooth hining , mm long , min tel y toothed the r nc te p ex , the exceeding the glu mes .

TYPE LOCALITY : England . IB : s and a s at a u s s u b a and DISTR UTION Ditche wet pl ce low ltit de , Briti h Col m i to New Mexico d a u s a a and a a a a n as Lo . a s A aba a u a a s C liforni , e tw rd to i i n , in few loc litie , to l m ; Berm d ; l o Mexico to A a H rgentin ; n ative of the E as tern emi sphere .

A A 1 H M a n. 7 2 . . . r . rost. 7 : . 47 2 . . 3 . ILLUSTRATIONS : B ull U S . Dep g g f ; itchc f u - m ons el ensi NOTE : P olypogon l itto ral is was thought by D val Jou ve to be a hybrid between P . p i s nd a 2 2 88 . A ros s lb u . o c . . : g ti a a (B ll S Bot . Fr

h P l a s alis Br n n. in D u r . o . n 5 . n o o er e V C . P a . o ypogo u tr g p y , y q B ot

1 2 . 2 1 . 8 9

P ol o on . Uniﬂ . 1 7 1 . 1 824 rinitns u . 1 8 1 cr initns . a . 8 . c yp g Trin Gr m . (Type from Chile ) Not P . N tt l o on n o r i ni ns H a . a Ai . 7 3 P te ru tus va . r 4 c M us a e . u s s 6 : . i r t S u . A . N yp g p ck ; t ck n l . B eno re III 1 0 nitn . 9 6 . cri s (B as ed on P . Trin )

a u s as u as 1 a a us o r u u s a - n Perenni l ; c lm m ch meter t ll , gl bro min tel y ro ghened , ever l oded ; — s a s a us or u u u 1 3 . s a s s he th gl bro min tel y ro ghened ; li g le mm long (horter th n i n the other pecie ) ,

a — — o 5 7 . s a u a r u a s 5 1 5 . s s we kl y nerved ; bl de cm long , mm wide , c bro ; p nicle oft , lobed interr pted , 8— 1 5 — u u s 2 m m . s s th e . u us a s u s u s mo tl y cm long , the n mero wn p rpli h ; gl me long , hi pid lo , a ﬂ u 4—6 s ex ous a . . wn , del ic te , mm long

: i . TYPE LOCALITY Concepc on , Chile n a : u a t as a a d A . DISTRIBUTION Introd ced Bingen , W hington ; n tive of Chile rgentin

1 Y E K . n . 1 1 2 0 . L 1 . . G e . : 1 4 . 1 5 CURUS H . N ov Sp 8

P leo o n u A a a . . 1 : 1 9 1 848 . eto um i L o u . . 8 . s s . s s s curus p g N tt . Jo r c d Phil II (Type pecie , P , which y h p leoi des . )

o w a as s s s s a s s s a s L perenni l gr e , with den e pikelike p nicle , the pikelet b orne i n p ir , the lower o l —fl w r d a a a u a f a s s a s u us . S s o e e the p ir terile , the hort br nchlet decid o pikelet , the r chill rtic l te ab u s u s a s usua 2 - a a a a ove the gl me ; gl me wned , the fir t ll y wned ; lemm n r row , firm , longer th n w n u s a a s a . the gl me , termin ting in lender

h oi H . le des E . K . T s s L . ype pecie , p

u s um b a u 2— s s b t bas 3 . C lm erect or dec ent e ; lig le mm long , di tinctly vi i le from

hl e . 1 L . eoid s Side view . . p

- L . h al roides . u a 2 . a s u b s u s s b s . C lm dec m ent pre ding ; li g le hort , not vi i le from ide view p

L 2 1 . u u hl i s . E K . n. . 1 1 4 . 1 8 1 5 . H . G e : yc r s p eo de . N ov Sp

leo o on et a . 1 1 9 4 a a F é P s o um . u A a . . : 8 . 1 8 8 . s u . S p g N tt Jo r c d Phil II (Type from nt , New Mexico ,

Ga m bel . ) L C l a nci ol n a as s s . Am . 2 2 7 1 . 1 896 s curus hl eoides va r . S i s : . y p g f Be l , Gr e N ( pecimen ited from

Mexico a nd Texas . )

a o r ss au us u s s u ss o r u at as Pl nt more le gl co ; c lm den el y t fted , compre ed , erect dec mbent b e ,

- — u s a s a s a u us s a a u s 2 0 5 0 . a s a s a s ever l noded , tri te , c ber lo , e peci lly bo t the node , cm t ll ; he th gl bro , — s a s u a u 2 3 . a s a o r a keeled , horter th n the internode ; lig le c te , mm long ; bl de fl t folded , r ther s a us u su a and o n s a s a us b a s of thick , c bro on the pper rf ce the whiti h m rgi n , gl bro ene th , tho e the