108 BOTANY OF THE VOYAGE OF THE SULPHUR. 
Panicula vix pedunculata, contracta, 2-3-pollicaris, axi communi triquetro ferrugineo-pubescente. Ramuli et 
pedicelli brevissimi.  Calycis limbus brevissime et obscure 5-dentatus. Corolla glabriuscula, vix tamen 
perfectam vidi. Ovarium more generis biloculare, ovulis solitariis erectis. 
This plant must be very near to the P. triphylla DC., differing in the downy 
under side of the leaves and the broader stipules. It is doubtful, however, whether 
both species should not rather be referred to Psychotria, the fully-formed corolla 
not being known in either. 
376. PaticourEA Guianensis, Aubl?—DC.? Prod. 4. p. 530.—Isle of Gorgona.—The flowers 
are rather smaller than in my Guiana specimens, but I can detect no other difference.* 
377. Cepn2nis tomentosa, Willd.—DC. Prod. v. 4. p. 533.—Isle of Gorgona. 
378, CepHALANTuHUs occidentalis var. brachypodus, DC. Prod. v. 4. p. 538.—Manzanilla Bay. 
379. Drop1a crassifolia, sp. n., glaberrima, diffusa, radicans, foliis linearibus lanceolatisque 
crassiusculis, vaginis amplis longe multisetis, floribus in axillis subsolitariis, fructibus ovali-oblongis 
calycis laciniis 4-6 inzequalibus lanceolatis coronatis——San Blas. 
Ramuli crassiusculi, stipularum vaginis fere omnino obtecti. Folia subsesquipollicaria, sessilia, acuta, 
rigida, supra levia, margine recurva, costa media subtus valde prominente, ceeterum enervia. Stipularum 
vagina 2 lin. vel paullo longior. Setz utrinque 6-8, vaginam sequantes. Flores non vidi. Calyces fructiferi 
vaginam breviter superant ; laciniee limbi foliacei, rigidi, valde ineequales, longiores 2 lin. longze. 
380. Dropta setigera, DC. Prod. v. 4. p. 563.—Isle of Taboga, Bay of Panama. 
381, SperMacocE tenuior, Linn.— DC. Prod. v. 4. p. 552.— Common from Mexico to 
Guayaquil. 
382. Srermacoce (Borreria) parviflora, Mey.—DC. Prod. v. 4. p. 544.—Gulf of Fonseca. 
This species appears to have a wide range and to vary considerably in the 
smoothness or roughness of its leaves, and in the proportionate length of the 
teeth of the calyx, which are sometimes nearly equal, sometimes two are much 
shorter than the two others. It is probable that Spermacoce prostrata, Aubl., is 
the same plant, nor can I see any constant character to separate Borrerta rami- 
sparsa, DC. 
The genus Borreria, as already observed by Hooker and Arnott, and others, 
cannot indeed be separated from Spermacoce by any tangible characters, and the 
membranous fruited Diodie are also too closely allied to it; but it does appear 
that the fruit, as well as the habit of De Candolle’s section Eudiodia are sufficiently 
marked to maintain it as a distinct genus. 
383. Mrrracarrrum villosum, Cham. Schl.—DC. Prod. v. 4. p. 572.—Folia ovali-vel oblongo- 
lane . . . . . . . i 
: eolata, paullo angustiora quam in speciminibus Mexicanis Galeottianis; corolla dentes calycinos 
non excedit.—Guascuma, in Columbia. 
* . : 7 
There are also specimens in the collection of Coffea Arabica from Columbia, probably cultivated. 
