ORDER XLIII. LEGUMINOSJS. 271 



ANALYSIS. 



1. Corolla papilionaceous 2 



Corolla not papilionaceous 42 



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



Leaves pinnate 20 



Leaves simple or palmate 88 



3. Leaves pinnately trifoliate 4 



Leaves palmate 18 



4. Fruit a legume 5 



Fruit a loment 16 



5. Legume many-seeded 6 



Legume few-seeded 12 



6. Plants trailing or vines 7 



Plants not vines 11 



7. Calyx 5-cleft 8 



Calyx 4-cleft, or bilabiate 9 



8. Keel, stamens, and style twisted together Phaseolus, 5 



Keel not twisted Clitoria, 14, and Centrosema, 15 



9. Calyx 4-cleft Galactia, 13 



Calyx bilabiate 10 



10. Flowers yellow Vigna, 6 



Flowers purple Doliohos, 7 



11. Flowers red Erythrina, 8 



Flowers white, blue, or yellow Baptisia, 43 



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



Calyx 4-cleft 13 



13. Vines 14 



Not vines 15 



14. Flowers yellow Rhynchosift, 11 



Flowers white or violet Amphicarpcea, 16 



15. Flowers in racemes Bkynchosia, 11 



Flowers solitary or in pairs Pitcheria, 12 



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



Loment 1 or 2 seeded 17 



17. Lomont uncinate Stylosanthus, 84 



Loment unarmed Lespedeza, 39 



18. Flowers in heads or dense spikes 19 



Flowers in oblong spikes or racemes Psoralea, 24 



Flowers in long racemes or solitary Baptisia, 42 



19. Flowers yellow Medicago, 30 



Flowers not yellow Trifolium, 28 



20. Leaves equally pinnate 21 



Leaves unequally pinnate 28 



Leaves irregular Psoralea, 24 



21. Leaves terminated by tendrils 22 



Leaves not terminated by tendrils 24 



22. Flowers purple Lathyrus, 4 



Flowers white or blue 23 



23. Legume smooth, many-seeded Vicia, 2 



Legume hairy, 2-seeded Ervum-, 3 



24 Shrubs or trees 25 



Herbaceous plants 26 



25. Stamens diadelphous Agati, 17 



Stamens monadelphous Amorplia, 25 



Stamens not united GUditschia, 47 



26. Stamens diadelphous 27 



Stamens not united Cassia, 75 



27. Legume many-seeded Stsbania, 18 



Legume few-seeded Chapmannia, 35, and Glottidium, 19 



28. Twining plants or vines '. 29 



Not twining plants or vines 81 



