6 New Species or SOUTH AMERICAN PLANTS 
half the length of the ovary, which is 3 mm. long, dark-brown, 
lanceolate sharply angled, and roughish. Perigone 4 or 5 mm 
broad, dark-colored, the lobes ovate, obtuse, pubescent within. 
Styles stout, entire, obtuse, strongly recurved, united only at 
the very base. 
Staminate Plant.—(Only young inflorescence seen) Racemes 
pis 
tillate flowers, longer than the stout pedicels. Perigone pilose 
within. Stamens 3, too young for their characters to be de- 
ined. 
“A vine to 10 feet, of scrubby growth. San Lorenzo Ridge, 
6500 feet, February 27. Not common.” (Herbert Smith, 
Colombia, 2299.) 
Dioscorea truncata. 
Staminate Plant.—Glabrous, the branchlets slender, finely 
sulcate, the internodes about 5 cm. lon Petioles about 15 
m. 
. long, slender, slightly broader toward the summit, narrowly 
channelled. ades 5 to 7 cm. long, 2.5 to 
h 
ous, 7 to IO cm. long, very slender, short-peduncled, bearing 
slender peduncle about as 
aminod ; 
Pistillate Plant.—Racemes I5 to 20 cm. long, slender, 
oosely flowered, slenderly peduncled. F lowers sessile or the 
short pedicels adnate to the rachis, the bractlets i 
about 2.5 mm. long. Ovary 5 mm. long, li 
except at the summit, where they 
ong, 10 mm. broad, elliptical, light 
the persistent perigone. 
the staminate plant, Smith says “Twining to IS feet, 
common in thickets below 1500 feet. Collected at Cienaga 
near sea-level, Sept. 10.” Of the pistillate plant, Thicke 
» Playa Brava, Nov. 17.” H ^ : 
lombia. (No. 2302.) r erbert Smith, Co. 
> 
are 2-lobed. Fruit 18 mm. 
-brown, glabrous, tipped by 
