LEGUMIXOSxE. (pulse FAMILY.) 95 



* * Ovary few- or many-ovuled. 

 ■(- Keel spirally twisted. 

 26. APIOS. Leaves pinnate, not stipellate. 

 •27. PHASEOLUS. Leaves trifoliolate, stipellate. 



-1- -t- Keel straight. Leaves trifoliolate (except one species of Galactia). 

 ++ Legume terete, torulose. 



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



29. ERYTHRINA. Flowers scarlet. Vexillum narrow, elongated. Stems erect. 



++ ++ Legimie flattened. 

 = Bracts opposite. Vexillum very large. 



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



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



= = Bracts alternate. 



32. AMPHICARPvEA Calyx 4 -5-toothed. Flowers of two kinds. Bracts persistent. 



33. GALACTL\.. Calyx 4-cleft. Bracts deciduous. Legume linear. 



34. CANAVALIA. Stamens monadelphous. Calyx bilabiate. Hilum linear. Legume 



three-ridged on the back. 



35. DIOCLEA. Stamens diadelphoua (9 & 1). Calyx 4-cleft. Hilum linear. 



Tribe V. DAL.BERGIE^. Stamens 10, monadelphous or diadelphous. Legume 

 indehisceut. Cotyledons thick and fleshy. -^ Trees or shrubs. 



3G. PISCIDIA. Legume compressed, 4-winged. Leaves pinnate. 



37. ECASTAPHYLLUM. Legume flat, orbicular, 1-seeded. Leaves 1-foUolate. 



Teibe VI. SOPHORE.^. 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. THERMOPSIS. Stamens persistent. Legume nearly sessile, flattened, many-seeded 



Leaves trifoliolate. 



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



* * Legume indehiscent. 



41. SOPHORA. Legume moniliform. Leaves pinnate. Shrubs. 



Suborder II. CJESALPINIE^E. Corolla irregular and somewhat 

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

 interior. Stamens separate. Embrvo straight. 



42. CERCIS. Flowers perfect, somewhat papilionaceous. Calyx 5-toothed. Leaves 



simple. 



43. CASSIA. Flowers perfect, irregular. Calyx deeply 5-parted. Anthers dissimilar. 



Leaves pinnate. 



44. GLEDITSCHIA. Flowers polygamous, almost regular. Calyx 3 -5-parted. Leaves 



pinnate and bipinnate. 



45. GYMNOCLADUS. Flowers polygamous, regular. Calyx funnel-shaped. Stamens 10. 



Legume linear. Leaves pinnate. 



4G. C^S.4.LPI\IA. Flowers perfect, irregular. Calyx cup-shaped. Stamens 10. Legume 

 broad. Leaves bipinnate. 



47. PARKINSONIA. Flowers perfect, irregular. Calyx cup-shaped. Stamens 10. Le- 

 gume linear. Leaves pinnate. 



