88 LEGUMINOS^E. (PULSE FAMILY.) 



25. UESMODIUM. Legume 2 -6-jointed, bristly. Racemes terminal. 



TKIBE IV. PHASEOL-E^E. Stamens monadelphous or diadelphous (9 & I/. Leg- 

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

 in germination. Chiefly twining vines. 



* Ovary 1 - 2-ovuled. 



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



* # Ovary few or many-ovuled. 

 +- Keel spirally twisted 



27. APIOS. Leaves pinnate, not stipellate. 



28. PHASEOLUS. Leaves trifoliolate, stipellate. 



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

 ++ Legume terete, torulose. 



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



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



++ ++ 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. AMPHICARPJEA. 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. Hilum linear. Legume three- 



ridged on the back. 



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



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

 indehiscent. Cotyledons thick and fleshy. Trees or shrubs. 



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



TRIBE VI. SOPHOKE.E. 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. SOPIIORA. Legume moniliform. Leaves pinnate. Shrubs. 



SUBOKDKR II. CLESALPINIE2E. 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-toothed. Leaves simp'e. 



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



pinnate. 



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



nate and bipinnate. 



SUBORDKR III. MIMOSEJE. .Corolla regular, hypogynous, valvate 

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

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

 ers polygamous. 



