132 Annals of the Carnegie Museum. 



Leaflets smooth or nearly so, rarely more than 5 or 6 mm. long; pods 

 strongly constricted. 

 Leaflets in 4-12 pairs; a slender erect herb; pods much more 

 deeply constricted on the lower edge. 



308. ^schynomene tenuis. 

 Leaflets in 12-20 pairs; half-shrubby, 1-3 m. high; pods about 

 equally constricted on both edges. .307. j^schynomene sensitiva. 

 Leaflets less than five to a leaf. 



Leaflets one to a leaf (see also Indigofera pascuorum and Galactia parvi folia). 

 Shrub or low bushy tree with one or more leaflets in the axil of a small 



spine 306. Brya Ebenus. 



Herbs; unarmed. 



Stem conspicuously winged 300. Crolalaria pterocaula. 



Stem not conspicuously winged. 



Twining vines; leaflets varying from three and ovate, to one 

 and linear-oblong or lance-oblong. 320. Bradburya virginiana. 

 Non-twining, more or less erect herbs. 



Leaves obcuneate-oblong, retuse; pod about 3 cm. 



long by 1.3 cm. wide 301. Crolalaria relusa. 



Leaves linear-oblong, the leafless stem above them terminating 

 in a slender, erect, laxly-flowered spike. 



313. Meihomia Cowellii. 



Leaflets two to a leaf 309. Zornia diphylla. 



Leaflets three to a leaf. 



Tree; terminal leaflet often 10 or 12 cm. wide and about the same length. 



323. Erythrina Berleroana. 

 Herbs, vines, or undershrubs. 



Erect, or not essentially twining plants. 



Leaflets up to about 2 cm. long and 3 mm. wide; slender peduncle 

 ascending far above the leaves. 



340. Phaseolus lathyroides. 

 Leaflets much larger or else relatively much wider. 



Flowers large and showy, with standard up to 5 cm. 



long and 4 or 5 cm. wide 319. Clitoria guianensis. 



Flowers much smaller. 



Leaflets narrowly oblong, more than five times as long as 



wide 338. Eriosema crinitum. 



Leaflets relatively wider. 



Leaflets obtuse to retuse, softly tomentose, about 3-5 by 



1.5-2 cm 332. Galactia Jussiceana. 



Leaflets velvety, acuminate, up to 3 by 7 or 8 cm. in 

 dimensions; plants erect; pods not much constricted. 



335. Cajanus indicus. 

 Leaflets oval or oblong, rarely over 2 cm. long; plant 



creeping 312. Meihomia Scorpiurus. 



Leaflets widely ovate, usually about 6 cm. long; stems 



