142 
CONTRIBUTIONS TO BOTANY. 
very acutely acuminated, with an unusually long, cuspidate 
point. I have not seen the typical S plant, which M. Triana de- 
scribes as having leaves 5 centira. (2 inches) in diam. In Pavon’s 
? plant, which agrees with M. Triana’s diagnosis, and which 
I have consequently referred to this species, although it does 
not become black in drying, probably owing to its place of 
growth, the leaves, with straight converging sides, very slightly 
cordate at base, are 2|-3^ inches long, 2-2^ inches broad, on a 
slender tomentose petiole, thickened at its extremities and sud- 
denly reflected at its origin, 1| inch long; this is inserted 
3 lines within the margin of the basal sinus, which is 1-2 lines 
deep ; the stout cuspidate point is 3 lines long. The floriferous 
young branch bears three or four much smaller leaves towards 
its base, and terminates in a spicated raceme 2 inches long, the 
bracts being 3-4 lines long, 2-3 lines broad, on a petiolet 
1-2 lines long, and being plicated in vernation. 
10. Cissampelos Orinocensis,}i.B. K. v. 68; — Cissampelos Pareira, 
Eichl. {nun Linn) l.c. 189; — ramulis tenerrimis, striatis, gla- 
bris vel sparse pubescentibus ; foliis peltatis, deltoideo-orbi- 
culatis, imo truncatis, e medio summum versus sinu levissimo 
angustioribus, acumine obtuso et mucronato, membranaceis, 
9-1 1-nerviis, supra viridibus, subglabris vel sparse pilosis, 
subtus pallidioribus, densius sericeo pilosis, marginibus pilis 
longis fulvis ciliatis ; petiolo tenerrimo, limbo paulo breviore, 
subglabro : inflorescentia ^ axillari, racemosa ; rachi tenuis- 
sima, e basi alternatim laxe ramosa; ramis iuterdum bractea 
foliiformi imo donatis, alternatim bracteolatis, pauiculiferis ; 
paniculis trichotome divisis pedicellisque capillaribus : racemo 
? axillari, folium vix superante.— In regione Rio Orinoco : v.s, 
in herb. Lindk, Coro del Tigre (Oelbe, 1882). 
This species approaches C. Fluminensis in the shape of its 
fringed leaves, which are less deltoid and less acute, but differs 
in its more filiform petiole and the very unusual character of its 
^ inflorescence, in which respect it bears some analogy to 
C. tropceolifolia. The branches are slender and virgate, with 
axils 2-2| inches apart; the leaves are 2-2^ inches long, 
1|-2|- inches broad, with a petiole 1^-1| inch long, inserted 
2-3 lines within the truncated basal margin. The extremely 
slender ^ inflorescence is branching and racemose, on a filiform 
rachis 2^-3^ inches long, having a basal panicle and, at intervals 
of ^ to inch, several alternate fascicles of three shorter similar 
panicles, all of which are trichotomously divided, orbicular bracts 
2-2\ lines in diam. being sometimes found at the origin of each 
fascicle, but they are generally wanting. 
