88 LEGUMINOSiE, (PULSE FAMILY.) 



25. DESMODIUM. Legume 2 - 6-jointed, bristly. Racemes terminaL 



Tribe IV. PHASEOLEJE. Stamens monadelpbous or diadelphous (9 & Ij. Lfpr- 



ume 2 valved, not jointed. Cotyledons thick and fleahy j usually raised above giouuU 

 in germination. — Chiefly twining vines. 



« Ovary 1 - 2-ovuled. 



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



* * Ovary few or many-ovulert. 

 ■*- Keel spirally twisted 



27. APIOS. Leaves pinnate, not stipellate. 



28. PHASEOLUS. Leaves trifoliolate, stipellate. 



■*- -*- Keel straight. Leaven trifoliolate (except one species of Galactia). 

 ■H- Legume terete, torulose. 



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



30. ERYTIIRINA. Flowers scarlet. Vexillum narrow, elongated. Stems erei t. 



++ -M- Legume flattened. 

 = Bracts opposite. Vexillum very large. 



31. CLITOliIA. Calyx tubular, 5-tootbed. Vexillum spurless at the base. 



32. CENTIIOSEMA. Calyx short, 6-cleft. Vexillum spurred at the base. 



= = Bracts alternate. 



33. AMPHICARPiEA. Calyx 4 - 5-toothed. Flowers of two kinds. Bracts persistent. 



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



35. CANAVALIA. Stamens monadelpbous. Calyx bilabiate. Ililum linear. Lpgume three- 



ridged on the back. 



36. DOLICHOS. Stamens diadelphous (9 & 1). Calyx 5-cleft. Hilum oval. 



TaiBB V. DAtiBERGIE^. Stamens 10, monadelpbous or diadelphous. Legume 

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



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



Tribe VI. SOPHOREJE. StamenslO, separate. Legume not jointed. — Brect herbE, 

 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 itidehiscent. 



41. SOPQORA. Legume raoniliform. Leaves pinnate. Sbrub!:<. 



Suborder II. CiESALPINTEiE. Corolla irregular and somewhat 

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

 interior. Stamens separate. Embryo straight. 



42. CERCIS. Flowers perfect, somewhat papilionaceous. Calyx 5-tootlied. Leaves simp'e. 



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



pinnate. 



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



nate and bipinnate. 



Suborder III. MIMOSEJE. Corolla regular, hypogynous, valvate 

 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. 



