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080057-05.019.Pdf 'e"lnJeqEcs 'e€.1€ueldllloco?lsuv elr?por srlsrJerunsrns '(seJor^oJq zrpeu sel"Jelel)€l€lsu?ul lolrEnbe"ur 'srssec El€qolul "eurgelru?c €ssEc? 1tuue.I ?leSuoleal"lunleu snqrleuruol esnycurrurged 1a epunf rurseq pe eredns erpourelur :srTrtJeJrpcsog aeapd ostop unl"upe a1esequnrpou.tolui '€t?Intru€ €lllqc?qu "l"Jlns rTrqercgredns uI '?teulunc€ ursBq pe 'et"JlsoJ 'esse;druocxr,t srsdoflEJ erednsoged ur eleut:ucrqeeJBu?Jqureu eJeqrT 'e.reJur eu€d ur ttl?AJeurqreur8eplrec 'eEllrqc"qr 'sue8und'snnbllqo EtEupE"epg u:acrdeedo:d :oqef urelne snleqJ"q IoAsnl"AJnc sn1p3 snqqeuGreuqns snqrTeJel"lsr^rou 'urnl€Araurcned erncsqo runlelnlsu? unlSglur 'ael? runeur8rlgec eFs"q Elulue'I eeleueldurocIoA o€lepunloJ JelrTES.rop leurcned olnJsqo oeour8zllrec sepnbeeqns eElunlD rlcnpeJ ede€s'srapd ours 'ulnou ualoc :snlpo.tqdeuloq slles?q snlncsou :9-€ srlncsou epcrdg 'exe1 Esourer?r elncrul?d el"rll' "InBrT :selueSund seleJeleeless€rcur eelecrldnpuoc epJ€ e3ullu"l:srsolrd t-€ srpou rurInc leruueredeulluerg 'Aou uo8'sepu€ze'l (e"oprlsoJAeJA)Elporllatdur,{S 'suor8eJ Jeqlo pu" "rFltsnv uJels3ldJo sfelJaqrur) eql erou eqt sluaurl?o.rtpuol8er ro; pue 'lcefo:d €rTe.rlsnv €JolC eq] ',re) Jo Jo Jo 'slmfoJd ur ualeuepun Sureq BrauoS ss€JBs.puo,,i{ eql Jo ,{a^.rnse^rsuolur u? zl^ 6 ro3 ,{gerqc perrnber exel ,rou Jo seru€u oql e1eplp^ ol st reded sl{l Jo lretqo eql uoprnpoIluI 162""" " " " "" srrns'c " :.::..:.:..:..:.::.::.::.::.::....::.:.:..:.....:.. 96z S3JueJeJeu q62. ( luJLuaSpal,nou>1ry D.t!Dl2!111 06z ...s1oqdota@H Lg(........................ ..susotdDtquv 992.................... rlloltl )[xO f8Z .. .. ... .. .'....... ..'..auq2D 112 )ald tZZ Dtputraqwts tLz uorlrnporlul JiBd slualuo] 'elep Imdoloqdroru ^\ou tuecrjru8rs.pnlcur ot papseua elE 'tu?ue^ 'uouruornn 'qqnH rrdtrlora .{lo^qelor p uo paseq sl qclq^\ A J Dou,q d lo pve rue}I auq)Dtpald 'sorJods ''qqnH Jo suorldrl.stun3lra aqJ orurt lsru aqt loJ ?rlertsnv .1oJpeplorol sr arurpuo ue ,{q poluosardol E J saoqdoDpH ,{le^rpadseri,rror3rrryrt/ puP-st.totpIxo 'zr^ 'Ereue8^!au sE prlESrrS:s arE uru.roCrapr.)rsd?rtlrsrp Lun)luDd Drorrrrr rlrolr/J ruaH auqrotl)aH ut ,rrrrry{ ur sarreos rg ,rpo7{ Puz II3nI,.{ J 'sor.eds 'D1palpaFruIst PUlr II:nJ{ r s d pue ru.H auqroiDau ot parlle Z snuoSp apnlrur ,{eqf pol€rlsnllr pu€ p.qrrcsop sr 'tr.rotlllaf Jo uroquoN rql pu? erTerlsnv u$lso/A Jo sued pcrdor 1rI\ ruo4 ^Uorqr'sosselS Jo ex?t ^\ou 9l Jo trSoloqdrou oql'(t86t)f0€-€/Z:(Z)S €rs nN (e€ac?od) sessEr8uerrErlsnv Imrdorl Jo exEl ^\aN I I's.puezs'I pa4sqY 'eroqueJ'0091 .unueqj.H 1092,{rolurallprrd€:l u?rJ?rrsnv xoS Oa C'OUISJ I?uoU€Nuelle-Ilsnv sepueze.I Jr'\l (aueruo4) sassur8ue[urlsnv lurrdorl Jo uxel ,ltaN tLz (186r)€0€-€rz :(z)s Prs nN Nuytsia Vol. 5, No. 2 (1984) Tlpus: S. lanosa Lazarides Non-resinous perennials; oulms erect, terete, with 3-4 hairy nodes; leal sheaths shorter than culm internodcs; blades thickened, tightly condupliaate, terete, pungenti ligule ciliate. Inflorescencea loose racemosepanicle ol solitary spikelets pedicelled and approximate to distant on simple (rarely divided), l-nate branches;divisions pubescent-scabrous;axis ribbed or stdatei branchesand pedicelstriquetrous or compressed,the latter thickenedbelow spikelet. Sllkelel 3-6Jlowered; the basal floret hermaphrodite; the remainder neuter, without paleas, oitenreduced. Gfume.r persistent, subequal, cartilaginous, lanceolate-ellipt ic. acumi n ate. en t ire. muticous or aristulate, usually glabrous, rounded or flattened on the back, weakly lew- nerved. Basal lemma cartilaginous, lanceolate,acuminate, entire, aristulate, weakly 3-nerved (laterals close to margins). Cn1fuscurved or oblique, pungent, glabrous near tip otherwise densely bearded, with a linear-ellipti.c scar. Pqleq adnate to rhachilla and cartilaginous in the lower part, free and membranous above, acute, entire, muticous; keels prominent in uppcr free part, scaberulous, representedin the lower hardened part by 2 narves; llaps prominent, membranous with hyaline margins, incurved. Lodicules at first thickened, becoming hyaline or mcmbranous, often ltrm near base and hyaline above, many-nerved, oblong or cuneate, truncate, glabrous, irregular or entire on the apical margrn. Anthers laterally axsertednear apex of floret, reddish, large. So'/e.rfree. Car-1,opsisslightly compressed dorsally, oblong to oblanceoiatc,abruptly narowed into a truncate apical beak, acuminate at base,with a longitudinal depressionon the hilar fhce; embryo c.'1/3 as long as the grain itself; hilum sub-basal,linear to narrowly oblong; pericarp tardlly ftee. Rhachilla stovt, compressed,glabrous,.jointed with horizontalcircular articulationsi basal internode adnate to back of palea of the fertile floret for most of its lengthi the upper internodes joined at base to, aDd partly enclosedwithin, the empty lemmas, elongating with maturity. Empty lemmas cartilaginous,glabrous or almost so, scaberulous,3lobed, 3-nerved,unequally 3- awned (median longer than laterals), reduced upwards to the awns, at first clustered close abovethe lertile floret and mostly envelopedby the glumes,becoming distant and prominently exsertedwith the elongationof the rhachilla.,4wnJ flattened, scaberulous, becoming longer upwards. Species2, in the Northern Territory of Australia Key to Symplectodia and allied genera On morphological features,the relationshipso[ Symplectrodraare clearly with Plectrachne Herr. and Tiiodi.t R. Br., the complexity of its spikelet structur€ possibly indicating it to be a specializedderivative of Plc(:truchne.During development, the spikelet undergoes major changes,which dramatically alter its appearance.ln the immature state, all the florets arecondensed almost wholly within the glumes.Wlth maturity the spikelet,or more specilically the rhachilla, elongatesto at least 3 times its length. Consequently,the infertile florets become widely separatedfrom each other and from the hermaphrodite floret and glumes. Ultimately, the infertile florets disa iculate individually and the fertile floret falls with its callus, while the glumes remain attached to the pedicel. The complexity in structure seemsdifficult to justify in terms of seeddispersal or any other function, consideringthat all the florets aflected 'sdorclno o^rss€urpu€ sadolsflcor doatss€ qrns ststlqEq euolspu€s'pe88nJ ur neeleld puE-I uequJv eqlJo sur8JEruuJelse,r aql uo srnccoserceds eql 'sJ3lC"leqC 'selcrued Surqsrn8urlsrptuelsrsuoc or" sleJou elrual eq1Jo eruuel elnsrrq puE pue se^"rl Jo '3urrnoloc 'trq"q 'sno]"ruoaqr 'tsnqor suorsueurp luer8 q8rq Sururro;-durnlc .{lpnsnun eql 'ro^e,roH 'stu€ld selcedseql Jo sreqlo ur tuesqe ,(leteldtuoc sr oluos Jo eJnleeJ8ur{uls ? sr qcq,r'e3"rToJ I"s"q oql uo srwq,{1yoo,tJo .ro,{oJesusp dlerue:1xe eqt'.{FursudJns 'sune Jql ol pJJnpJrro 1<tr1oy :eyws soutut,tltr1dwa 'sur8J?ru Dddn AuoI (sl€ral€l) rulu he pue (u€rperu)tulu /-9 su.{\€:e{rl-u,r\€ aqol-prur eql 'etsutrunca uo elerTrctrlesrrds serurleruos dl,trorreu seqoy i(seqo1Surpnlcxe) Suoy ulu 9-g '3uol Dutual (tdwa ts./idlulru t c JoJ eel"d ol 3leupe urur g c opourolur Ieseq:.qllqJDqg '3uo1 uru S0 c unlrq pu" Iuru I c o,{rqrue'ruur80 x V c stsdo{to2 rlsrppeJ'8uolu.rur 'snorq?I8'3uol 811siaqtuv Suol ruu 9I-Zl sary)lpal qloous ulur 96 c oa1o4 3uo1 luru E> u,r\e :8uol turu Z c snlpr :se^JauIEJOIEI aql SuoF pu€ a^oq? snolnroqEcspu? 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