90 LEGUMINOS.E. (PULSE FAMILY.) 



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



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



19. STYLOS AN THES. Stamens monadelphous : anthers of 2 forms. Pod 1 - 2-jointed. Flow- 



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



TMBE III. VICIE.JE. 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 side next the keel-petals 

 SSL LATHYRUS. Style flattened, bearded on the side towards the standard. 



TBIBK IV. PHASECKLEJE. 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-valved. Cotyledons thick and fleshy, usually rising to the surface, 

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

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

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

 * Keel spirally twisted. Cotyledons thick, nearly unchanged hi germination. 



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



23. APIOS. Keel incurved, at length twisted. Leaves 6 - 7-foliolate, not stipellate. 



* * Keel straight. Cotyledons not so thick. 

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



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



<- -i- 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. AMPHICARP.ZEA. Calyx not bracteolate, 4 -5-toothed. Peduncles many-flowered^ 



Bracts persistent. 



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



28. CENTROSEMA. Calyx 2-bracteolate, short, 6-cleft. Peduncles few-flowered. Standard 



with a spur at its base. 



TRIBE V. SOPHORE^E and POOAI^YRIEJE. Stamens 10, distinct. 



29. BAPTISIA. Calyx4-5-lobod. Keel-petals distinct. PoM inflated. Herbs. Leaves pal- 



mately 3-foliolate or simple. 



80. CLADRASTIS. Calyx 5-toothed. Keel-petals distinct. Pod very flat. Tree, with pin- 

 nate leaves. 



SUBORDER II. C^ESALPINIE^ZE. 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. 

 31 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. 

 83. GYMNOCLADUS. Flowers dioscious. Petals 5, regular, inserted on the summit of the 



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



84 GLEDITSCHIA. Floorers polygamous. Petals, divisions of the open calyx, and stamen* 

 3-5. Leaves 1 - 2 pinnate. 



