124 LEGUMINOS.E. (PULSE FAMILY.) 



Tribe III. GALEGE.2E. Herbs or woody plants (twining only in No. 12), not tendril- 

 bearing, with pinnate or sometimes palmately compound leaves. Stamens diadelphous or 

 rarely miftiadelphous : anthers uniform (or the 5 alternate ones sometimes smaller in 

 No. 7). Pod continuous, at least not transversely jointed. 



* PSORALIEiE. Glandular-dotted shrubs or herbs. Ovary 1-3 ovuled ; the legume small 



and indehiscent, 1-seeded, rarely 2-seeded. 



7. Psoralea. Corolla truly papilionaceous. Stamens 10, more or less diadelphous, half of 



the anthers often smaller or less perfect. Leaves 3 - 5-foliolate. 



8. Dalea. Corolla imperfectly papilionaceous. Stamens 9 or 10, monadelphous ; the cleft 



tube of filaments bearing 4 of the petals about its middle. Leaves pinnate. 



9. Petalostemon. Corolla scarcely at all papilionaceous. Stamens 5, monadelphous ; 



the cleft tube of filaments bearing 4 of the petals on its summit. Leaves pinnate. 



10. Amorpha. Corolla of only one petal ! Stamens 10, monadelphous at the base. Leaves 



pinnate. 



* * TEPHROSIEJE. Trees, shrubs, or herbs. Ovary several - many-ovuled : pod flattened, 



several-seeded, 2-valved. Leaves pinnate. Standard large and broad. 



11. Robinia. Wings of the corolla free from the keel. Pod flat, thin, margined on one edge. 



Trees or shrubs : leaflets stipellate. 



12. Wistaria. Wings free from the keel. Pod tumid, marginless. Woody twiners : leaflets 



obscurely stipellate. 



13. Tephrosia. Wings cohering with the keel. Pod flat, marginless. Herbs : leaflets not 



stipellate. 



* * » ASTRAGALE.E. Chiefly herbs, with pinnate leaves and axillary racemes or spikes. Pod 



mostly turgid or inflated. Style beardless. Standard narrow, erect. 



14. Astragalus. Anthers distinctly 2-celled. Keel not tipped with a point or sharp ap- 



pendage. Pod turgid, with one or both the sutures turned in, sometimes dividing the cell 

 lengthwise into two. 

 15 Oxy tropis. Keel of the corolla tipped with a point : otherwise as Astragalus. 



16. Glycyrrhiza. Anthers with the two cells confluent. Pod short, few-seeded, nearly 



indehiscent, glandular-prickly. 

 Tribe IV. HEDYSAREJE. Herbs, with pinnate or pinnately 1 - 3-foliolate leaves, 

 not tendril-bearing. Anthers uniform, except in No. 21. Pod Ooment) transversely 2- sev- 

 eral-jointed, the reticulated 1-seeded joints remaining closed, or sometimes reduced to one 



such joint. 



* Leaves pinnate, with several leaflets, not stipellate. 



17. JEscbynomene. Stamens equally diadelphous (5 & 5). Calyx 2-lipped. Pod several- 



jointed : joints square. 



18. Hedysarum. Stamens unequally diadelphous (9 & 1). Calyx 5-cleft. Pod several- 



jointed : joints roundish. 



* * Leaves pinnately 3-foliolate, rarely 1-foliolate. 



19. Desmodium. Stamens diadelphous (9 & 1) or monadelphous below. Calyx 2-lipped. 



Pod several-jointed. Flowers all of one sort and complete. Leaflets stipellate. 



20. Lespedeza. Stamens diadelphous (9 & 1) : anthers uniform. Pod 1 - 2-jointed. Flow- 



ers often of 2 sorts, the more fertile ones apetalous. Leaflets not stipellate. 



21. Stylosanthes. Stamens monadelphous : anthers of 2 sorts. Pod 1 - 2-jointed. Calyx 



deciduous, the tube narrow and stalk-like. Leaflets not stipellate. 

 Tribe V. VICIE^. Herbs, with abruptly pinnate leaves, usually climbing, the common 

 leafstalk continued into a tendril or bristle. Peduncles axillary. Stamens chiefly diadelphous 

 (9 & 1). Pod continuous, 2-valved, few- several- seeded. Cotyledons very thick, remaining 

 under ground in germination. 



22. Vicia. Wings adherent to the keel. Style filiform, bearded with a tuft or ring of hairs 



at the apex. 



23. Lathyrus. Wings nearly free. Style somewhat dilated and flattened upwards, bearded 



down the inner face. 



