DIADELPHIA. DECANDRIA. ‘113 
A tropical genus of more than 50 species, with some 
exceptions in Japan and South Africa. The seeds-of some 
of the species are esculent, and used as articles of ordi- 
nary diet. 
514, APIOS. Moench. Guyerve. ZL.” 
Calix subbilabiate, truncate, with but a single . 
denture situated beneath the carina, Carina 
falcate, reflecting the apex of the vexillum. Germ 
cylindrically sheathed at the base. Legume 
many-seeded. 
Root consisting of pendulous oblong-cylindric tubers; 
stem herbaceous and.twining; stipules cauline and subu- 
late; leaves pinnate in 5’s and 7’s; racemes axillary, many- 
flowered, flowers brown, aggregated by 3’s, bractes by 3’s, 
caduceus; calix short and truncate, subcrenate, bibrac- 
teolate, lower lip with a single denture; carina of the corolla 
falcate; stipe of the germ cylindrically sheathed, a cir- - 
cumstance common to two other genera. 
Species. 1. A. tuderosa. Pu. Flowers odorous; tubers 
of the root edible and farinaceous, much like those of La- 
thyrus tuberosus Sold in some of the German markets, and 
rarely larger, though very numerous. 
515. *AMPHICARPA. Elliot. mss. 
Calix campanulate, 4-toothed, obtuse and na- 
ked at the base. Petals all oblong, vexillum 
broader and incumbent, snabsessile. 4nthers 
round, Stigma capitate. Germ cy lindrically 
sheathed atthe base. Legume flat, ee stipitate, 
2, 3 or 4-seeded. . 
‘Stems twining, leaves ternate, stipules, minute, cauline; 
racemes axillary; bractes 2-fowered; flowers sometimes 
a s. (Wings oblong, unidentate at the base; carina 
, obtuse, straight.) 
Species. 1. monoica. Os. Stem twining, re 
pilose; leaves ternate, ovate, nearly smooth; stipules. 
/ striate; racemes- pedunculate, short and crowded, p 
lous; bractes roundish, persistent, 2-flowered. ali 
- tir ethes 
vt is oblong cf tn all pettirony ad it move at 
price! odut Germ cylindrically s at the 
