82 
trilobus. 
tuberosus. 
DIADELPHIA, DECANDRIA. 
S. P. twining, pubescent ; lower folioles rhomboid- 
oval, upper trilobate ; capituli on long pedun- 
cles ; legumens linear. — Mich* 
Phaseolus trilobus, Mich, not of Willd. and Ait. 
which latter is Dolichos trilobus, L. 
P. vexillatus, Walt. 
Glycine angulosa, Willd. 
Is this P. angulosus, Pers. ? 
On the high sandy banks of the Delaware, Jersey side, about 
four miles below Kaighn’s point ; rare. Annual. July. 
322. APIOS. [Glycine. Gen. pL] (^Leguminos<je.^ 
Calix sub-bilabiate^ truncate^ with but a sin- 
gle denture situated beneath the carina, 
Carina falcate^ reflecting the apex of the 
vexilluni. Germ cylindrically sheathed 
at the base. Legume many-seeded. — Jfutt. 
1. A. twining, glabrous: root tuberous; leaves 
pinnate ; folioles 5-7, ovate-lanceolate, narrow 
above ; spikes crowded, shorter than the leaves. 
— PotsA. 
Apios tuberosus, Pursh. 
Glycine Apios, Willd. 
Icon. Bot. Mag. 1198. 
Wild Potatoe-vine* 
Root tuberous, esculent. Flowers brownish purple. In 
bogs of Jersey, and along hedges else where j not uncommori. 
Perennial. July. 
323. GLYCINE. Gen. pi. 1182. {^Leguminoscs.) 
Calix 4-cleft, subequal, upper segment bifid, 
base partly attenuated. Vexillnm oboval ; 
wings bidentate at the base; carina often 
incurved, shorter than the vexillum. Germ 
naked at the base. Legume oblong, com- 
pressed, 2-seeded, sessile. — 
