NEw SPECIES or SOUTH AMERICAN PLANTS 99 
“Twining to 5 or 6 feet, the flowers white. Common in a 
damp clearing, Sierra del Libano. 6,000 feet, January to April. 
Collected January 23." (Herbert H. Smith, Colombia, No. 
679.) a E 
) Vincetoxicum (Cynoctonum) acutissimum. 
( Glabrous. Stems slender, terete. Petioles 1 to 2 cm. long, 
o 
very coarsely reticulate. in tw the ncle ex- 
tremely short, the pedicel about 3 long, stou 
parted nearly to the base, the lobes 6 mm. long, lance-linear, 
acutish. Corolla 2.5 road, lobed two-thirds of the way, 
7 mm. broad, membranaceous, the margin sinuate and denti- 
culate. Corpuscle ovoid, acuminate and acute, the filament 
thick, the pollinia ovoid, large, pendulous. 
“A vine, near Las Partidas, in the edge of the forest, about 
3,500 feet, March ‘10.” (Herbert H. Smith, Colombia, No. 
1646.) 
Marsdenia ecorpuscula. 
Yellowish-gray-tomentellate throughout. Branches M eir 
terete, twining. Petioles 2. 5 to 4 cm. long, broadly and shallow 
channelled, striate. Blades 5 to 10cm. long, and almost equally 
Toad, ovate, strongly cordate, the „Sinus broad, open a 
and weak, purplish, the principal secondaries 4 or 
one pair Regs summit of the petiole, all much-branched, 
s 5 mm. long, lance- 
: e ba u 
linear, Obtuse, erect. Corolla-tube cylindraceous, 
: he lobes, annu- 
» more longer than the calyx, tomentose like t shy, short, 
linear, oblong, short appendage at the summit. hou bs 
hyaline inflexed rather large appendages. Stigma roun tule 
little exceeding the anthers. Pollinia large, ovoid, free, there 
“ng no corpuscle or filaments. i 
“Leaves variable in shape on the same plant, oien, (5 
cordate, the flowers crimson or crimson-brown, of variable 
