Studies in III. Additional notes on the Clarisia Ruiz et Pavon Emend. Lanj..

by

J. Lanjouw (Utrecht) and G. Rossberg (Berlin-Dahlem).

Some months the first author in his Studies in ago published Moraceae II bot. néerl. (Rec. trav. XXXIII, 1936, pp. 254 —276) of the Clarisia R. P. The second author traced a synopsis genus & in the Berlin Herbarium of this which had been a specimen genus As described in 1821 as Excoecaria ilicifolia Spreng. this species is of identic with Clarisia strepitans (Fr. Allem.) Lanj., the name

the latter has be As addition species to changed. in some interesting

specimens were kindly sent to Utrecht for determination by the

Herbaria at Berlin-Dahlem (D), Geneva (G) and the Arnold Ar-

boretum, Jamaica Plain (A), it seemed desirable to publish these

notes.

Clarisia racemosa R. & l.c. P.; Lanjouw p. 265.

I have now seen the collected by Pavon in the Herb.

Geneva, which was described by Macbride (Publ. Field Mus. Hist. Ser. Clarisia P. Nat. Bot. XI, 1931, p. 15) as racemosa R. &

Macbride who at Geneva when was working my paper came out, label the hirtella gives now on a following statement: „cf.

Mildbr. Lanjouw’s Interpretation of Clarisia racemosa is cor- rect as to original (seen by me) at Madrid! Perhaps this specimen

collected referred to the but not was later, genus (Clarisia) pu- blished.” I with Macbride that this agree specimen is a Soro-

cea and closely related to S. hirtella Mildbr. I will deal with this in another specimen paper. Additional material:

Peru: Ucayali R. (Tessmann 5432! [G], ￿ fl.; Tessmann 5433! [D], ￿ La 1885! fl. Oct.); Dept. Junin, near Merced, alt. 1000 m (Weberbauer [D], ￿ fl. Dec.; Weberbauer 1912! [D], fr. Dec.).

Clarisia biflora l.c. R. & P.; Lanjouw p. 271. As I have now been able to study more material of this species. 717

P I collected by a v o n, give here some additions to the description. and subcoriaceous Leaves up to 18 cm long 8 cm broad, to ohartaceous. Female flowers paired in the axils of the leaves. The cylindric irregulary lobed collar of the perianth is fimbriate. Fruit

18 —20 mm in diameter.

Peru: (Pavon [G.] ).

Clarisia mexicana l.c. (Liebm.) Lanj. p. 270. of Complete material this species was sent to me by Dr. John- Arnold Plain ston of the Arboretum, Jamaica (Mass.).

The following lines have to be added to the description:

D.B.H. Tree c. 100 ft. high and c. 2 ft. with rather irregular thickened trunk and smooth brown bark and milky latex. Flowers

greenish. Female flowers usually two together in the axils of the leaves. Pedicels clothed with short hairs. 2 —3 mm long, densely Perianth and in the thin 3—4 mm long 2 —3 mm diameter, fleshy, lobed the clothed with short irregularly collar at apex sparsely

hairs, especially on the margin, for the rest glabrous. Styles c. curved. 5 —6 mm long,

G F. u a te m a 1 a, Dept, of Quczaltenango near Colomba, alt. 2900 ft. (A. Skutch 2003! [A, U], 9 fl. Dec.; A. F. Skutch 2004! [A, U], S fl. Dec.).

These well with the material. two specimens agree fairly type The The female flower has been leaves are longer. not described

before. The key given in the synopsis mentioned above has to be

revised as follows:

Side-nerves Perianth of female flower velutinous p. 264. 3. a. 6—8. C. 3. urophylla (Bonn. Sm.) Lanj.

b. Side-nerves 10—16. Perianth of* Female flower slightly the for the hairy at apex, rest glabrous 4.

Clarisia ilicifolia (Spreng.) Lanj. et Rossb. nov. comb.; Excoe- caria Neue II Sa- ilicifolia Spreng. Entdeckungen (1821) p. 117; in Pflanzenreich hagunia spec. Pax Engler, Das IV. 147. V. {1912) Clarisia in bot. p. 172; strepitans (Fr. Allem.) Lanj. Rec. trav. neerl. XXXIII (1936) p. 272. S I’s has been excluded from the Excoe- p r e n g e species genus caria who referred it the by Pax, correctly to genus Sahagunia.

It proved to be identic with Clarisia strepitans (Fr. Allem.) Lanj, Additional material:

Brazil; Para, Cumina R. (Ducke, Herb. Amaz. Mus. Par. 14979! [G], $ fl. Oct.); Para (Huber, Herb. Amaz. Mus. Par. 6894! [G], 9 fl. Dec.. 718

with extremely small and deeply incised leaves); Rio de Janeiro (Sello 232! [D], S fl.); Corcovado (Sello L 487! [D], $ fl.); Brasilia (without col- lector’s name! [D] Type! of Sprengel’s species).

var. guianensis (Lanj.) Lanj. et Rossb. nov. comb. Additional material:

French Guiana (Poiteau! [D], $ fl.).

Rossb. comb. var. paraensis (Lanj.) Lanj. et nov.

Roissb. comb. var. micranthera (Warb.) Lanj. et nov.

Side-nerves up to 13! Additional material:

Brazil; Amazone R. (Poeppig 2382! [D, G], S fl.); Para, Obidos, Serra Escama (Sampaio 4914! [D], S fl. Nov.); Rio de Janeiro (Peckolt! [D],

9 fl. young Nov.).

var. cuyunensis (Lanj.) Lanj. et Rossb. nov. comb.

Now that additional female material is available of various

that the of species, it is interesting to notice three groups species

mentioned in are well-characterized already my previous paper by the female inflorescence.

1. C. racemosa R. & P. Female inflorescence racemiform. and allies. Female 2. C. ilicifolia (Spreng.) Lanj. & Rossb. its inflorescence capituliform. and its allies. Female flowers 3. C. mexicana (Liebm.) Lanj. paired.