704 
BIOECIA HEXANDRIA. 
t 1. Villosa. Lin. 
D. foliis alternis, op- 
positis verticillatisque, 
cordatis, acuminatis, 
subtus pubescentibus, 
9 nervibus, nervis late- 
ralibus simplicibus. 
Sp. pi. 4. p. 796. Pursh, l. p. 2' 
D. Paniculata, Mich. 2. p. 239. 
D. Quinata, Walt. p. 246. 
Leaves alternate, 
opposite and verticil- 
late, cordate, acumi- 
nate, pubescent under- 
neath, 9-nerved, the 
lateral nerves simple. 
. Nutt. 2. p. 238. 
Root perennial. Stem herbaceous, climbing over shrubs, sometimes 12 
to 15 feet high, terete, glabrous? Lower leaves verticillate, the upper gene- 
rally alternate, cordate, acuminate, 9-nerved, as far as it has occurred to me 
generally glabrous. Sterile florets in slender axillary panicles, very small, 
in small clusters on the branches of the panicle. Fertile florets in simple 
racemes; germ inferior; styles three; stigmas 3-cleft; capsule 3-celled, 3- 
winged, 2-seeded. 
Grows in dry sandy moderately fertile soils. 
Flowers May to July. 
2. Qoaternata. Walt. 
D. foliis verticillatis, 
quaternis alternisve, 
cordatis, acuminatis, 
utrinque glabris, 7-ner- 
vibus, nervis laterali- 
bus bifidis. 
Leaves verticillate, 
by fours and alternate, 
cordate, acuminate, 
glabrous on both sur- 
faces, 7-nerved, the la- 
teral nerves divided. 
Walt. p. 246. Pursh, 1 . p. 251. Nutt. 2. p. 238. 
A vine very similar to the preceding. Describing from the specimen 
now before me, I should say that the leaves are rather smaller with a more 1 
tapering and acuminate summit, 7-nerved with the exterior pair divided at 
some distance from the base, and the sterile florets more numerous, more 
thickly clustered, and the calyx rather longer. 
Grows in dry fertile soils. 
Flowers May to J uly. 
