230 
D1ADELPHIA DECANDBi A® 
ly the figure of Plukenet Aim. t. 120. f. 7* referred to by Linnseus under 
the Glycine triloba. 
Grows on the sand hills along the margin of the ocean. 
Flowers August to October. 
2. Helvola. 
S. foliis ternatis, 
deltoidibus, oblongis ; 
floribus capitatis; vex- 
illis brevibus; alis ex- 
pansis, maximis. 
Phaseolus helvolus. Willd. Sp. 
Leaves ternate, del- 
toid, oblong ; flowers 
in heads ; vexillum 
short ; wings expand- 
ed, very large. 
pi. 3. p. 1032. Flush 2. p. 470. 
This plant is to me still obscure; among all the specimens I have seen 
belonging to this genus, I have met with none with large expanded wings*. 
Grows in Carolina. Linnaeus. 
Flowers. 
3. Peduncularis. Muhl. 
S. foliis ternatis, 
oblongo ovatis ; flori- 
bus capitatis ; vexillo 
majusculo, emargina- 
to; alis parvulis ; se- 
minibus lanosis. 
Leaves ternate, ob- 
long ovate; flowers in 
heads; vexillum large, 
emarginate ; wings 
small ; seeds woolly. 
Phaseolus helvolus. Mich. 2. p. 60. Walt. p. 182. 
P. vexillatus. Pursh 2. p. 470. 
Stem prostrate or climbing on small shrubs, and with the whole plant 
a little hairy. Leaves oblong, ovate, tapering a little irregularly towards 
the summit. Common petioles 10— 15 lines long. Stipule^ lanceolate, 
acute. Flowers 5 — 7 at the summit of a common peduncle, 6 — 7 inch- 
es long. Calyx 4-parted; upper segment broad, obtuse. Corolla pur- 
ple. Vexillum nearly round. Wings oval, small, angled, as usual in this 
class, near the base. Carina as long as the vexillum, spiral. Legumen 
terete, a little hairy. 
Grows in dry and fertile soils. 
Flowers July to September. 
The plants in this genus form a small but very natural group. They 
have been arranged by different Botanists as species of Phaseolus, Doli- 
chos and Glycine : to the Glycine, as it now remains in this sketch, they 
have no affinity, but they certainly form an intermediate genus between 
