594 



FABACEAE 



Pods curved or coiled. 

 Pods straight. 



Pod-valves leathery. 



Pod-valves membranous. 



One genus within our range. 



TRIBE IV. TRIFOLIEAE. 



TRIBE V. LOTEAE. 

 TRIBE VI. GALEGEAE. 



Standard with the blade as broad as long or broader, commonly spreading. 

 Leaf-blades unequally pinnate. 

 Herbs. 



Pods 4-angled or very turgid. 

 Pods flattened. 

 Shrubs or trees, or woody vines. 



Vines with high climbing woody stems. 

 Shrubs or trees. 



Flowers in recemes : pods margined on one side. 

 Flowers solitary in the axils : pods marginless. 

 Leaf-blades equally pinnate. 



Pods wingless, more or less compressed. 



Pods several-many-seeded, with thick margins, not in a bladdery 



envelope. 

 Standard broad and longer than the keel petals : calyx with acute or 



acuminate lobes. 

 Standard narrow and shorter than the keel petals : calyx with broad, 



low lobes. 

 Pods 2-seeded, the margins thin : seeds remaining in the bladdery inner 



part of the P9d when the valves fall away. 

 Pods 4-sided and 4-winged. 



Standard with the blades relatively narrow, commonly erect. 

 Pod 2-celled, with a perfect partition. 

 Pod fleshy, indehiscent. 

 Pod membranous, leathery or woody, dehiscent. 



Pod ovoid to oblong, rarely almost didymous, terete or vertically flat- 

 tened, leathery or woody. 



Pod linear, somewhat laterally flattened, membranous. 

 Pod 1-celled, the partition, if any, rudimentary : 



Lower suture strongly intruded or sometimes both sutures inflexed. 



Both sutures inflexed, each valve of the pod almost circular in cross- 

 section. 



Neit 



Upper suture prominent, the pod obcordate in cross-section, 

 ither suture intruded. 



Pod membranous, inflated : calyx campanulate : corolla mainly ochro- 



leucous. 

 Pod woody, not inflated : calyx cylindric : corolla mainly purple. 



7. MEDICAGO. 



8. MELILOTUS. 



9. TRIFOLIUM. 



10. LOTUS. 



11. INDIGOFERA. 



12. CRACCA. 



13. BRADLEIA. 



14. ROBINIA. 



15. COURSETIA. 



16. SESBAN. 



17. AGATI. 



18. GLOTTIDIUM. 



19. DAUBENTONIA. 



20. GEOPRUMNON. 



21. ASTRAGALUS. 



22. HAMOSA. 



23. HOLCOPHACOS. 



24. TIUM. 



25. PHACA. 



26. XYLOPHACOS. 



TRIBE VII. DALBERGIEAE. 



Leaf-blades normally 1-foliolate : pods suborbicular, 1-seeded. 

 Leaf-blades pinnately several-foliolate : pods linear, several-seeded. 



27. DALBERGIA. 



28. ICHTHYOMETHIA. 



TRIBE VIII. PSORALEAE. 



Leaf-blades digitately 3-5-foliolate or pinnately 3-foliolate. 

 Leaf-blades mainly pinnately 5-many-foliolate. 

 Stamens 9 or 10. 



Corolla of a single petal (standard). 

 Corolla of 5 petals. 



Corolla with all petals free and distinct. 

 Corolla with claws of all petals adnate to the filament tube. 

 Stamens 5. 



Spikes not subtended by an involucre : calyx-lobes narrow, shorter than 



the tube. 



Spikes subtended by an imbricated involucre: calyx-lobes bristle-like, 

 longer than the tube. 



TRIBE IX. HEDYSAREAE. 

 Corolla yellow. 

 Flowers perfect. 



Leaf-blades unequally pinnate : stamens diadelphous (5 and 5). 

 Leaf-blades equally pinnate : stamens monadelphous. 

 Flowers monoecious, at least some of them sterile, others fertile. 

 Anthers of 2 kinds. 

 Anthers alike. 

 Corolla white, blue, violet or purple. 



Leaflets stipellate : loments of several joints. 

 Leaflets not stipellate : loments of 1-2 joints. 



TRIBE X. PHASEOLEAE. 



A. Keel of the corolla neither curved nor coiled. 

 a. Style glabrous or sparingly pubescent below. 

 * Standard not spurred at the base, 

 t Corolla yellow. 



Flowers 1 or 2, or 3 together, axillary to the leaf-like bracts. 



29. PSORALEA. 



AMORPHA. 



31. EYSENHARDTIA. 



32. PAROSELA. 



33. PETALOSTEMON. 



34. KUHNISTERA. 



35. AESCHYNOMENE. 



36. ZORNIA. 



37. STYLOSANTHES. 



38. CHAPMANIA. 



39. MEIBOMIA. 



40. LESPEDEZA. 



41. PITCHERIA. 



