90 LEGUMINOS-E. (fULSE FAMILY.) 



18. LESPEDEZA. Stamens diadelphous (9 & 1) : anthers unifonn. Pod 1 - 2-jomted. Flow- 



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



19. STYLOSANTHES. Stamens monadelphous : anthers of 2 forme. Pod 1 - 2-jomted. Flow- 



ers of 2 sorts intermixed, the fertile apetalous. Leaflets not stipellate. 



Tribe IIL VICIEjE. Stamens diadelphous (9 & 1). Pod continuous, 1-celled. Coty- 

 ledons very thick and fleshy (as in a pea), not rising to the surface, but remaining under 

 ground in germination. — Herbs, with abruptly pinnate leaves, the common leafstalk 

 produced into a tendril or bristle. Peduncles axillary. 



20. VICIA. Style filiform, bearded round the apex, or down the eide next the keel-petals 



21. LATHYHUS. Style flattened, bearded on the side towards the standard. 



TaiBB IV. PHASBOI-E.^. Stamens more or less diadelphous (9 & 1). Pod contin- 

 uous, not jointed, nor more than 1-celled, except by cellular matter sometimes deposited 

 between the seeds, 2-valTed. Cotyledons thick and fleshy, usually rising to the surface, 

 but remaining nearly unchanged (as in a bean, seldom foliaceous) Ib germination. — 

 Twining or trailing plants, with pinnately 3-foliolate, rarely 5 -7-foHolate leaves, mostly 

 stipellate, destitute of tendrils. Flowers often clustered in the racemes. 

 * Keel spirally twisted. Cotyledons thick, nearly unchanged in genninfltion. 



22. PHASEOLUS. Keel spiral. Leaves 3-foliolate, stipellate. 



23. APIOS. • Keel incurved, at length twisted. Leaves 5 - 7-foliolate, not stipellate. 



* * Keel straight. Cotyledons not so thick. 

 H- Ovary 1 - 2-ovuled. Leaflets not stipellate. Flowers yellow. 



24. RHYNCHOSIA. Calyx 4-cleft, somewhat 2-lipped, or 4-parted. Pod 1 -2-seeded. 



•*- -K Ovary several-ovuled. Leaflets usually stipellate Flowers not yellow. 

 25 GALACTIA. Calyx 2-bracteolate, 4-cleft, the upper lobe broadest and entire. Bracts 

 deciduous 



26. AMPHICARPiEA. Calyx not bracteolate, 4 - 6-toothed. Peduncles many-flowered. 



Bracts persistent. 



27. CLITORIA Calyx 2-bracteolate, tubular, 5-clcft. Peduncles 1 - 3-flowered. 



28. CENTROSEMA. Calyx 2-bracteolate, short, 5-cleft. Peduncles few-flowered. Standard 



with a spur at its base. 



TRnjE v. SOPHORE.^ and POOAIiYRIE.^. Stamens 10, distinct. 



29. BAPTISIA. Calyx4-5-lohcd. Keel-petals distmct. Pod inflated. Herbs. Leaves pal- 



mately 3-foliolate or simple. 



30. OLADRASTIS. Calyx 5-toothed. Keel-petals distinct. Pod very flat. Tree, with pin- 



nate leaves. 



Suborder II. CiES ALPINIE-^. The Brasiletto Family. 



Corolla imperfectly or not at all papilionaceous, sometimes nearly regu- 

 lar, imbricated in the bud, the upper or odd petal inside and enclosed by 

 the others. Stamens 10 or fewer, commonly distinct, inserted on the calyx. 

 Seeds anatropous. Embryo usually straight. 



* Flowers imperfectly papilionaceous, perfect. 

 81. CERCIS. Calyx campanulate, 5-toothed. Pod flat, wing-margined. Leaves simple. 

 * * Flowers not papilionaceous, perfect. 



32. CASSIA. Calyx of 5 nearly distinct sepals. Leaves simply pinnate. 



* # * Flowers not at all papilionaceous, not perfect. 



33. GYMNOCLADUS. Flowers dioacious. Petals 5, regular, inserted on the summit of the 



tubular-funnel-form calyx. Stamens 10. Leaves doubly pinnate. 

 84. GLEDITSCHIA. Flowers polygamous. Petals, divisions of the open calyx, and stamens 

 3 - 5 . Leaves 1 - 2-piniiate. 



