88 LEGUMINOS.fi. (PULSE FAMILY.) 



25. DESMODIUM. Legume 2 -6-jointcd, bristly. Racemes terminal. 



Tribe IV. PHASEOL.E/E. Stamens monadelphous or diadelphous (9 & 1;. Leg- 

 ume 2 -viilvod, not jointed. Cotyledons thick and fleshy ; usually raised above ground 

 in germination. — Chiefly twining vines. 



* Ovary 1 - 2-ovuled. 



26. RIIYNCHOSIA. Legume oblong. Flowers yellow. Leaves trifoliolate. 



* * Ovary few or many-ovuled. 

 +■ Keel spirally twisted 



27. APIOS. Leaves pinnate, not stipellate. 



28. PUASEOLUS. Leaves trifoliolate, stipellate. 



*- *- Keel straight. Leaves trifoliolate (except one species Of Galactia). 

 ■w- Legume terete, torulose. 



29. VIGNA. Flowers yellow. Vexillum roundish. Stems twining. 



30. ERYTIIUINA. Flowers scarlet. Vexillum narrow, elongated. Stems erect. 



■m- ++ Legume flattened. 

 = Bracts opposite. Vexillum very large. 



31. CLITORIA. Calyx tubular, 5-toothed. Vexillum spurless at the base. 



32. CENTROSEMA. Calyx short, 5-cleft. Vexillum spurred at the base. 



= = Bracts alternate. 



33. AMPIIICARP^A. Calyx 4 - 5-toothed. Flowers of two kinds. Bracts persistent 

 31. GALACTIA. Calyx 4-cleft. Bracts deciduous. Legume linear. 



35. CANAVALIA. Stamens monadelphous. Calyx bilabiate. Ililum linear. Legume three- 



ridged on the back. 



36. DOLICIIOS. Stamens diadelphous (9 & 1). Calyx 5-cleft. Ililum oval. 



Tribe V. DALBERGIEJE. Stamens 10, monadelphous or diadelphous. Legume 

 indehiscent. Cotyledons thick and fleshy. — Trees or shrubs. 



37. PISC1DIA. Legume compressed, 4-winged. Leaves pinnate. 



Tribe VI. SOPHOREiE. Stamens 10, separate. Legume not jointed. — Erect herbs, 

 shrubs, or trees. 



* Legume dehiscent. 



38. BAPTISIA. Stamens deciduous. Legume inflated, stipitate, few-seeded. Leaves simple 



or trifoliolate. 



39. THERMOPSI8. Stamens persistent. Legume nearly sessile, flattened, many-seeded. 



Leaves trifoliolate. 



40. CLADRASTIS. Stamens persistent. Legume flat, few-seeded. Leaves pinnate. Tree. 



* * Legume indehiscent . 



41. SOPIIOItA. Legume moniliform. Leaves pinnate. Shrubs. 



Suborder II. G2ESALPINIE2E. Corolla irregular and somewhat 

 papilionaceous, or almost regular, imbricated in the bud \ the upper petal 



interior. Stamens separate. Embryo straight. 



4'J. CERCI& Flowen perfect, Somewhat papilionaceous. Calyx 5-footherl. Leaves si nip >. 



•).; CASSIA. Flowers perfect, irregular. Calyx deeply 5-parteil. Auth rs dissimilar. Leaves 

 pinnate. 



11. GLED1TSCHIA. Flowers polygamous, almost regular. Calyx 3 5 parted. Leaves pin- 

 nate and hipinnate. 



Suborder III. MIMOSEJE. Corolla regular, hypogynous, valva&e 



in the bud. Stamens distinct or united, often very numerous, inserted with 

 the petals. Embryo straight. — Leaves pinnate or 2 - 3-pinnate. Flow- 

 ers polygamous. 



