PERKINS THE LEGUMINOSAE OF PORTO RICO. 



139 



Leaflets opposite, very rarely alternate, 

 rarely reduced to 1. (Lonchocarp- 



INAE.) 



Pod not winged. 

 Pod with 4 wings. 

 Pod drupaceous. (Geoffraeinae.) 

 Stamens 10, usually diadelphous; pod 2-valved; 



leaves ending in a tendril. (Vicieae.) 

 Stamens 10, diadelphous or monadelphous; pod 

 2-valved, not articulate; scandent (rarely 

 erect) shrubs or herbs, with usually pinnately 

 trifoliolate leaves, often stipellate. (Phase- 

 oleae.) 

 Upper stamen free or more or less united 

 with the others; style glabrous above, 

 rarely pilose below, very rarely bearded 

 longitudinally on the inner side (Cli- 

 toria); nodes of the racemes not swollen. 

 (Glycininae.) 

 Style bearded longitudinally on the 



inner side. 

 Style glabrous. 



Standard spurred over the claw or 



at least with a tubercle. 

 Standard without spur or tubercle. 

 Upper stamen free or more or less united; 

 style glabrous or pilose below; either the 

 standard or the keel very large, larger than 

 the other petals. (Erythrininae.) 

 Standard the largest of the petals. 



Leaves with 3 leaflets; calyx bila- 

 biate or spathaceous, rarely 

 equally 5-toothed; trees or erect 

 shrubs. 

 Leaves with 1 leaflet; calyx with 4 

 segments, the two lateral small or 

 indistinct; twining herbs. 

 Keel the largest of the petals. 

 Style glabrous or pilose below; upper sta- 

 men free; nodes of the racemes swollen. 

 (Galactiinae.) 

 Calyx segments 5, the upper one being 



2-toothed or bifid. 

 Calyx segments 4, the upper one con- 

 sisting of 2 united. 

 Style glabrous or pilose below; upper sta- 

 men free at the base, above more or less 

 connate with the others; nodes of the ra- 

 cemes swollen. (Diocleinae.) 

 Calyx with 4 subequal segments. 

 Calyx bilabiate, the upper lip very 

 large, entire or bifid, the lower lip 

 very small; the upper suture of the 

 pod incrassated or 2-winged. 



48. Lonchocarpus (p. 194). 



49. Pistidia (p. 196). 



50. Andira (p. 196). 



51. Abrus (p. 197). 



52. Clitoria (p. 198). 



53. Centrosema (p. 199). 



54. Teramnus (p. 201). 



55. Erythrina (p. 202). 



56. Rudolphia (p. 203). 



57. Mucuna (p. 204). 



58. Calopogonium. (p. 206). 



59. Galactia (p. 206). 



60. Dioclea (p. 209). 



61. Canavalia (p. 209). 



