LEGUMINOSiE. (PULSE FAMILY.) 87 



» Stamens monadelphous : anthers of 2 forms. Leaves simple, or palmately compoand. 



1. CROTALARIA. Calyx 5-lobed. Legume inflated. Upper stipules decurrent. 



2. LUPINUS. Calyx 2-lippcd. Legume flattened. Stipules not decurrent. 



* • Stamens diadelphous : anthers alike. Leaves trifoliolate, rarely palmate or pinnate, the 



earliest ones alternate. 



3. MEDTCAGO. Legume membranaceous, curved or coiled, 1 - many-seeded. Flowers 



racemed. 



4. MELILOTUS. Legume roriaceoue, straight, rugose or veined, 1-4-seeded. Flowers 



racemed or spiked. 



5. TRIFOLIUM. Legume smooth, membranaceous, 1 - 4-seeded. Flowers capitate. 



6. HOSACKIA. Legume straight, many-seeded. Peduncle 1-3-flowered. 



* * * Stamens monadelphous or diadelphou?. Legume mostly l-seeded and indeliiscent. 



Plants dotted with, small dark glands. Earliest leaves opposite. 



-t- Legume included in the calyx. 



7. PSORALEA. Corolla papilionaceous. ' Stamens 10, diadelphous : half of the anthers of ten 



imperfect. 



8. PETALOSTEMON. Stamena6 united into a cleft tube, and adnate to the claws of four of 



the nearly regular petals. 



9. DALGA. Stamens 9 or 10, the tube partly adnate to the claws of the petals. 



■*■- -K Legume exserted. 



10. AMORPTTA. Stamens 10, monadelphous. Wings and keel none. 



* * * * Stamens mostly diadelphous. Legume 1- many -seeded, l-celled, 2-valved. Leaves 



pinnate. 

 •«- Trees or shrubs. 



11. ROBINIA. Legume flat and thin, margined on one edge. Trees or shrubs. 



12. WISTARIA. Legume nearly terete, coriaceous, contracted between the Feeds. Twining 



shrubs. 



■(- •(- Herbs. 

 13- TEPHR03IA. Calyx 6-cleft. Vexillum large. Legume compressed, nmny-Feeded. Leaves 

 unequally pinnate. 



14. INDIGOFERA. Calyx minute, 5-cleft. Vexillum small. Legume teretu or angled, 



2 -many-seeded. Leaves unequally pinnate. 



15. GLOTTIDltJM. Calyx truncate. Legume oblong, 2-seeded. Leaver abruptly pinnate. 



16. SESBANIA. Calyx 5-toothed. Legume very long and slender, many-seeded. Leaves 



abruptly pinnate 

 n, * * * * Stamens diadelphous. Legume 2-^elled lengthwise, or 1-celled, with one of the 

 sutures turned inward. Leaves pinnate. 



17. ASTRAGALUS. Stamens 10, diadelphous. Legume tumid. 



Trioe IL VICIE^, Stamens diadelphous (9 & 1). Legume 2-va]v(id. rot jointed. 

 Cotyledons thick and fleshy, remaining under ground in germination. — Climbing vines ; 

 the petioles of the pinnate leaves ending in a tendril. 



18. YICTA. Style filiform, bearded at the apex, or on the side facing the keel. 



19. LATHYRUS. Style flattened, bearded on the side facing the vexillum. 



Tribe III. HEDYSARE^. Stamens monadelphous or diadelphous. Legume sepa- 

 rating transversely into l-seeded indehiscent reticulated joints, or 1-j jinted. — Stems not 



twining. 



* Flowers yellow. 



20. J5SCHYN0MENE. Leaves pinnate. Stamens diadelphous (5 & 5). Flowers perfect. 



21. ZORNIA. Leaves palmately compound. Legume 2- 5-jointed. Flowers perfect. 



22. STYLOSANTHES. Leaves trifoliolate. Anthers of 2 forms. Flowers monoecious. 



23. CHAPMANNIA. Leaves pinnate. Anthers alike. Flowers monoecious. 



• * Flowers white or purplish. 



24. LESPEBEZA. Legume 1-jointed. Peduncles axillary. 



