EXOGENS. Ill 



DwAKF B. Sev. wild Am. spec. S. Vigna, 30 spec, twining or pros- 

 trate, chiefl3' trop. Am. Pis. yellow or purple. Pods eylindrio. V. 

 sinensis. Pods 3° long, edible. Ind. V. glabra, fls. yellow. Salt 

 marshes, S. C. to Fla., W. to Tex. 6. Gal4ctia, 45 spec, chiefly Am. ; 

 prostrate or climbing herbs, or erect shrubs ; fls. red, white, violet, 

 often showy. G. glabella, prostrate, fls. large, red-purple, N. J., S. 

 and W. G. mollis, similar, but downy, racemes fuller; Maryland, S. 

 andW. G.jftoHdarea, similar to last, but racemes and fls. largest. W. 

 Fla. G. Elliotiii, only spec with pinnate Ivs. ; Ifts. 7-9.' Twining; 

 fls. white, red-tinged, racemed. Coast, Fla. to S. C. 7. Canavalia, 

 showy, usually shrubby climbers ; 12 spec, both worlds. C. gladidta, 

 Overlook; fls. dark purple, pods 12' long; scimitar-shaped; beans 

 red or white. Held sacred and planted by negroes of Jamaica to 

 guard their gardens. Both worlds. C. obtusifolia, prostrate, fls. rose. 

 St. Vincent's Island, S. Fla. 8. Physostigma, stigma covered with a 

 great oblique hood ; fls. otherwise like Phaseolus. P. venenosum. Or- 

 deal Bean, BserJ; ; great twining climber ; fls. purple, racemed ; 

 pods 6' long. Beans blackish brown, somewhat hemispherical, l' long, 

 with long, dark, sunken hilum ; extremely poisonous ; used as an 

 ordeal. Old Calabar. 9. Butea, trees, or large climbing shrubs ; 4 

 spec. B. frond&sa, Dhak Tree, 40° high ; fls. racemed, orange-red, 

 with black calyxes, profuse-flowering before the Ivs. appear, — a gorgeous 

 sight ; wood, juices, and fls. valuable. Jutigles, Bengal. 10. Ery- 

 thrina, Coral Tree ; trees or shrubs, both worlds ; fls. blood-red or 

 coral-colored, racemed ; pods long, moniliform ; sds. usually red, often 

 with a black spot. Wood often as light as cork, valuable. E. um- 

 brosa, Cocoa-Mother ; 50°-60° high ; planted in cocoa-plantations 

 to protect the palms from winds and to give them moisture. Trop. 

 Am. E. Cdffra, Kaefirboom, tree, 60° high ; S. Af. E. indica, 30° 

 high, E. Ind. E. herbdcea, sts. many, 2°-5° high, herbaceous, from a 

 woody base; racemes l°-2° long; sds. bright red. N. C. to Fla., W. 

 to Tex. 11. Kennedya, prostrate or twining, wiry ; fls. red, pink, or 

 black, in showy racemes. Few spec, Australia, Tasmania. 12. Har- 

 denbergia, twining; near last, but fls. smaller. S. and W. Austral. 

 Lfts. usually .8 ; but H. monoph^lla has 1-foliolate Ivs. and blue or 

 violet fls. 13. Glycine, decumbent or twining ; fls. yellow or purple. 

 Sev. spec, both worlds. G. Sbja, only erect spec. ; dwarf 0, resembling 

 Bush-Bean ; sds. made into Sot/. Japan. 14. Clitoria, Butterfly 

 Pea, elegant gen. ; more than 20 spec. ; tropics, both worlds. Often 

 evergreen erect or climbing shrubs. Lvs. imparipinnate, fls. large, 

 purple, blue, white, or red, often 2''-8'' long ; solitary or racemed. C. 

 Mariana; erect or slightly twining, 2°-3° high; decid. ; fls. blue, 

 racemed. S., U. S. ; Mex. ; Khasia Mts. in Ind. IS. Centrosema, 

 Spttered 'p. ; fls. as in last, but standard spurred. 26 spec, both 

 worlds, chiefly in Brazil. C. virginidnum, slender, low-twining ; fls. 

 violet-purple ; rac 1-4-flowered. S., U. S. ; Brazil ; W. Af. 16. 

 Mucuna, Oowhaoe, Cowitch ; fls. white, purple, yellow, sol. or 

 racemed ; pod leathery, clothed with stinging hairs. Haindsome ever- 

 green twiners or climbers ; tropics, both woi-lds. 



Tribe S, Herbs. Lvs. paripinnate, rachis ending in a tendril or 

 point ; pod of Tribe 4. 1. Abrus. 5 spec. Best known is A. preca- 

 torius, Prater-bead Pha, Ketti, eIti ; twiner, fls. pale purple ; 

 sds. small, globose, scarlet ; used as weights, each weighing 1 grain ; 



