218 



XLVII. LEGUMINOSJ3. 



FIG. 43. 1. Lathyrus odoratus. 2. The stamens, the upper one free, and with the style, turned 

 upwards. 3. The legume. 4. A seed, showing the embryo with the two large cotyledons. 5. Hedysa- 

 rum boreale, a leaf and jointed legumes (loments). 6. One of the joints open, showing the seed. 

 7. Trifolium pratense. 8. The legume and part of the calyx. 9. Section of the seed. 10. A flower 

 enlarged. 



Conspectus of the Genera. 

 * Corolla papilionaceous. 



l-celled. . Phaca.. 22 



(turgid, . sub-2-celled. Astragalus. 21 



Stem erect. Tephrosia. 13 



C 00-seeded, . ( compr's'd. St. twining. Apios. 6 



( Stamens 5. ... Petalostemon. 17 



( Legumes ( l-seeded. .. {Stamens 10. . . . Dalea. 16 



( Sta. 5 & 5. . JEschynomene. 25 



| $ Fls. racemed. . . ( Sta. 9 & 1. . Hedysarum. 26 



f Herbs. . LLoment 2 10-jnt. (Flowers umbellate. . . . Coronilla. 24 



( Fls. yellow. Colutea. 12 



( Erect. . . ( Fls. blue. . Amorpha. 15 



( unarmed. . . ( Twining. Bracts colored. Wistaria. 7 



I Shrubs and trees, .. (armed with stipular spines. . . . Robinia. 11 



( Seeds oval. Vicia. 2 



(outside. . ( Sds. globose. Pisum. 4 



\ < Style villous ( inside, next the free sta. Lathyrus. 1 



Leaves I $ cirrhose. ( Style glabrous Ervum. 3 



pinnate I abruptly, . (not cirrhose. Stem erect Vicia. 2 



( Calyx bibracteolate. . Lespedeza. 28 



l-seeded, indehiscent. . Calyx naked. . .- . Psoralea. 14 



2-seeded. None of the flowers apetalous. . . MeUJotus. 19 



2-seeded in the apetalous flowers Amphicarpcea. 10 



( Keel and sta. circinate. 

 i Cal.5-tootb.ed ( Keel long-clawed, . 



00-seeded. ( Calyx 4-toothed 



i 2-jointed and one-seeded 



c several-jointed, several-seeded 



( Leg. falcate or spiral. 



( Stamens diadelph. (9 <fc 1.) Leg. included in cal. 

 ( Stamens 10, distinct, equal. .... 



f unequally. I Shrubs and trees, 



( Legumes 

 fpinnately. ( Loment 



Leaves (Herbs. 



3-foliate Lpalmately. (Trees. 



( Herbs. 



Phaseolus. 



Clitoria. 



Galactia. 



Stylosanthes. 



Desmodium. 



Medicago. 



Trifolium. 



Baptisia. 



Laburnum. 



Crotalaria. 



< Shrubs. . .... Genista. 



Leaves simple. . . . ( Trees Cercis. 



Leaves palmately 5 15-foliate Lupinw. 



