74 FAM. 93. 



d. Foliage glabrous, often glaucous; — stipules caducous; leaflets ovate 

 paler beneath; corolla blue-purple; loment 3-6 or more jointed, 

 joints half -rhombic. Pine-land. 



M. laevigata (D. rhombifolium) 



22. Leaflets not stipellate, loments of 1-2 joints; — herbs with pinnately 



trifoliate leaves and mucronate stipules; the small flowers in 

 racemes or spikes; calyx bracted, 5-cleft, with subulate teeth; 

 stamens diadelphous; loments small, joints lenticular, prom- 

 inently veined. Dry sandy soil. Summer and Fall. 



Lespedeza, Bush-clover 



L. hirta. Stem erect or ascending; flowers all complete and fertile; corolla yel- 

 lowish white and vexillum often with a purple spot; peduncles longer than 

 the leaves. 



L. capitata. Much like the preceding; peduncles shorter than the leaves. 



23. Keel of the corolla neither coiled nor curved, ------ 24 



23. Keel of the corolla coiled or curved, ------- -29 



24. Style smooth or sparingly pubescent below, ------ 25 



24. Style bearded along the inner side; — herbs with erect or slightly 



twining stems; leaves pinnately 3-many foliate, with stipules; 

 flowers showy, solitary in the axils, or in racemes; calyx 5-toothed, 

 longer than broad; vexillum large, notched at the apex; wings 

 curved; keel shorter than the wings; stamens diadelphous, or 

 monadelphous below; pod narrow, - Clitoria, Butterfly-pea 



C. Mariana. Peduncles shorter than the petioles; corolla lilac or pale blue, 



vexillum striped with magenta near the center. Sandy soil. Spring and 

 Summer. 



25. Vexillum not spurred at the base, -------- 27 



25. Vexillum spurred at the base, -------__ 26 



26. Herbs with prostrate or climbing stems; leaves pinnately 3-or 5-7 foliate 



with stipules; flowers showy, solitary or several together on ax- 

 illary peduncles; calyx 5-cleft, the upper two lobes sometimes 

 united; vexillum large, wings curved, keel nearly as long as the 

 wings; stamens monadelphous below; pod narrow. Sandy soil. 

 Spring to Fall, - - Bradburya (Centrosema, Clitoria), Butterfly-pea 



B. Virginiana. Upper calyx-lobe twice as long as the tube. 



B. arenicola. Upper calyx-lobe shorter than the tube. 



26. Cultivated, hairy, twining vine, leaves 3-foliate, stipellate; leaflets 



lobed, rhombic to orbicular; flowers large, purple, in axillary 

 spikes or racemes; standard equal to wings and keel; pod linear, 

 flat, many-seeded. Pueraria thunbergiana (Dolichos Japonicus), Kudzu-vine 



27. Corolla yellow. — Flowers in terminal or axillary racemes or clusters; — 



twining, trailing or erect, with 1-3 foliate leaves, stipulate and 

 resinous-dotted; calyx more or less 2- lipped, 5-lobed; vexillum 

 broad, wings narrow, keel incurved at the apex; stamens diadel- 

 phous, -------- Dolicholus (Rhynchosia) 



D. tomentosus. Mostly climbing; all or the upper leaves 3-foliate, terminal 



leaflet the largest; racemes nearly sessile, few-flowered. Dry soil. Sum- 

 mer. 



D. minimus. Prostrate or climbing; leaflets small, roundish or broadly rhom- 

 bic; racemes filiform, loosely flowered. Pinewoods. Summer. 



D. mollissimus. Erect; leaves rather remote, 3-foliate; racemes terminal, elon- 



