ORDER XLIII. LKGUMINOS^. 271 



ANALYSIS. 



1. CrTolhi papilionaceous 2 



Corolla not papilionaceous 42 



2. Leaves trifoliate or pahnutc, 5-7 foliate 3 



Leaves pinnate 20 



Leaves siuipio or palmate 33 



8. Leaves pinnately trifoliate 4 



Leaves palmate 18 



4. Fruit a le<rnnic 5 



Fruit a loment 10 



5. Legume many-seeded 6 



Legume few-seeded 12 



6. Plants trailing or vines T 



Plants not vines 11 



7. Calyx 5-clcft 8 



Calyx 4-cleft, or bilabiate 9 



S. Keel, stamens, and style twisted together Pliaseoluf!, 5 



Keel not twisted . . . .' CUtorUt, 14, and Centrosema, 15 



9. Calyx 4-cleft Galactia, 13 



Calyx bilabiate H 



10. Flowers yellow Vigna, C 



Flowers purple Bolichos, 7 



11. Flowers red Erythrino, 8 



Flowers white, blue, or yellow Baptisia, 43 . 



12. Calyx 5-cleft Psoralea, 24. MelUotus, 29 



Calyx 4-cleft 13 



13. Vines 14 



Not vines 15 



14. Flowers yellow Rhyu'-honid, 11 



Flowers white or violet Amphicarp(X<i, 16 



15. Flowers in racemes Rhynchosia, 1 1 



Flowers solitary or in pairs Pitcheria, 12 



16. Loment composed of several joints, each 1-seeded Desmodiiun, 87 



Loment 1 or 2 seeded 17 



17. Loment uncinate Stylosanthus, 84 



Loment unarmed Lc!<pjedeza, 30 



18. Flowers in hpads or dense spikes 19 



Flowers in oblong spikes or racemes Psoralen, 24 



Flowers in long racemes or solitary Baptiaia, 42 



19. Flowers yellow Medicago, 80 



Flowers not yellow Tri/olium, 23 



20. Leftves equally pinnate 21 



Leaves unequally pinnate 23 



Leaves irregular Psoralen, 24 



21. Leaves terminated by tendrils 22 



Leaves not terminated by tendrils 24 



22. Flowers purple Laihyrus, 4 



Flowers white or blue 2^^ 



23. Legume smooth, manv-secded Vlcia, 2 



Le<; ume hairy, 2-seeded Ervum, 8 



^4 Shr-ibs or trees 25 



Herbaceous plants 20 



25. Stunens diad-lphous J {/<''', 17 



Stamens monadelpiious Amo-pfio, 2.') 



Stamens not united Gledit-schia, 47 



2G. Stamens diade'phous ^. • • -. 27 



S; anu-ns not united Cas»ia, 75 



27. Leo-iune many-seeded S>->ih,inui, 18 



Lesume few-seoded C/tapmati7iia, 85, and Glottidium, 19 



23, Twining plants or vines *f 



Not twining plants or vines 



81 



