232 
D1ADELPHIA DECANDRIA. 
tatus. Carina falcata, 
vexillum reflectens. 
Germen basi vagina- 
tom. Legumen cori- 
aceum, polyspermum. 
1* .'TuBEROSA. 
toothed. Keel falcate, 
reflecting the vexil- 
lum. Germ sheath- 
ed at base. Pod co- 
riaceous, many seed- 
ed. 
Pursh 2. p. 473. Nutt. 2. p. 113. 
Glycine apios. Sp. pi. 3. p. 1067. Walt. p. 186. Mich. 2. p. 83. 
Root perennial, bearing small tubers. Stem frutescent, voluble, climb- 
ing over large shrubs, a little scabrous and hairy. Leaves unequally pin- 
nate. Leaflets 5 — 7? ovate-lanceolate, acute, slightly scabrous and sprink- 
led with hair. Stipules linear, hairy, small. Floivers numerous, on axillary 
racemes, shorter tl,ian the leaves. Calyx with the upper lip truncated, the 
lower with one, sometimes with three small teeth. Corolla brown. Vexil- 
lum reflected. Wings smaller, erect. Keel as long as the vexillum, incur- 
ved. Stamens and Style incurved with the keel. Legumen terete, gla- 
brous. Seeds reniform. 
This genus, in its artificial character, agrees very nearly with the pro- 
ceeding, it differs however in its calyx, its germ, and very much in its ha- 
bit, and may with propriety be kept distinct. 
This plant was the original Glycine of Linnaeus, and ought to have re- 
tained the name. The tubeis formed an article of food to the Aborigines 
of this country. 
Grows in damp rich soils, along the margins of swamps. 
Flowers July— August. 
AMPHICARPA. E. 
Calyx quadriden- 
tatus. Petala oblon- 
ga, aequalia. Vexil- 
lum lateribus appres- 
sis. Stigma capita- 
turn. Legumen com- 
pressum, stipitatum, 
2 — 4 spermum. 
1. Mon o i c a.. 
A. foliis Ternatis,o- 
vatis, glabris ; caule 
Calyx four toothed. 
Petals oblong, equal. 
Vexillum with the 
sides appressed. Stig- 
ma capitate. Pod 
compressed, stipitate, 
2 — 4 seeded. 
Leaves ternate, o- 
vate, glabrous ; stem 
