432 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Tribe VIII. Phaseoleae. 

 Style bearded. 



Calyx teeth subequal 36. RAMIREZELLA. 



Calyx teeth very unequal 37. CLITORIA. 



Style glabrous. 

 Vexillar stamen free at the base but united above with the other stamens. 



Lower calyx lobe well developed 38. DIOCLEA. 



Lower calyx lobe minute 39. CANAVALIA. 



Vexillar stamen free, or united with the others at the base. 

 Plants erect. 



Ovules 1 or 2. Flowers usually yellow. • 



Seeds transverse 40. ERIOSEMA. 



Seeds longitudinal 41. DOLICHOLUS. 



Ovules usually numerous, at least more than 2. 

 Plants usually armed with spines; calyx very oblique, truncate, bi- 



lobate, or with very short teeth 42. ERYTHRINA. 



Plants unarmed ; calyx deeply lobate or dentate. 

 Upper calyx lobe entire ; leaflets not gland-dotted. 



43. GALACTIA. 

 Upper calyx lobe bidentate ; leaflets gland-dotted beneath. 



44. CAJANUS. 

 I'lants scandent or trailing. 



Ovules 1 or 2 40. DOLICHOLUS. 



Ovules numerous. 

 Calyx bilobate, the lobes entire; fruit usually hispid with bristle-like 



hairs 45. MUCUNA. 



Calyx 4 or 5-lobate ; fruit not hispid. 



Upper 2 calyx lobes united into an entire lobe 43. GALACTIA. 



Upper 2 calyx lobes distinct or forming a bidentate lobe. 



Bracts and bractlets striate, persistent 46. BRADBUBYA. 



Bracts and bractlets not striate, caducous. 



47. CALOPOGONIUM. 



Tribe IX. Dalbergieae. 



Fruit drupaceous, l-.seeded 48. ANDIRA. 



Fruit not drupaceous, usually with more than 1 seed. 



Anther cells erect and dehiscent by a short terminal slit or divergent and 



dehiscent by longitudinal slits 49. AMERIMNON. 



Anther cells parallel, longitudinally dehiscent. 

 Leaflets alternate. 



Calyx acute at base; fruit suborbicular or broadly oblong. 



50. PTEROCARPUS. 

 Calyx obtuse at base ; fruit circinate or samara-like. 



Fruit circinate, not winged 51. DREPANOCARPUS. 



Fruit winged, samara-like 52. MACHAERIUM. 



Leaflets opposite (rarely only 1). 

 Wing petals free from the keel. Ovule 1 ; fruit thin. 



53. PLATYMISCIUM. 

 Wing petals adherent to the keel. 



Fruit with 4 longitudinal wings 54. ICHTHYOMETHIA. 



Fruit not winged. 



Fruit compressed 55. LONCHOCARPUS. 



Fruit torulose, not compressed 56. MUELLERA. 



