LEGUMINOS^:. (PULSE FAMILY.) 113 



39. THERMOPSIS, R. Brown. 



Stamens mostly persistent. Legume linear or oblong-linear, nearly sessile, 

 flattened, many-seeded. Stipules leafy, persistent. Otherwise chiefly as in 

 Baptisia. Flowers yellow. 



1. T. Caroliniana, M. A. Curtis. Stem stout, simple, smooth ; leaves 

 long-petioled ; leaflets membranaceous, obovate-oblong, silky beneath ; stipules 

 very large, ovate or oblong, clasping; racemes elongated, villous, erect, rigid, many- 

 flowered ; flowers on short pedicels ; bracts ovate, deciduous ; legumes oblong- 

 linear, erect, straight, villous and hoary, 10-12-seeded. Mountains of North Car- 

 olina. May - July. Stem 3 - 5 high. Raceme 6' -12' long. Legume 2' long. 



2. T. fraxinifolia, M. A. Curtis. Stem branching, slender, smoothish ; 

 leaves long-petioled ; leaflets oblong, narrowed at the base, often acute, smooth 

 above, glaucous and slightly pubescent beneath ; stipules lanceolate, much shorter 

 than the petioles , racemes erect, glabrous ; flowers on slender spreading pedi- 

 cels ; bracts small, lanceolate, persistent ; legume linear, falcate, pubescent, 

 spreading, short-stipitate, 10-seeded. Mountains of North Carolina. Stem 

 2 high. Legume 3' long. 



3. T. mollis, M.A.Curtis. Pubescent; stem diffusely branched ; leaflets 

 obovate-oblong ; stipules leafy, oblong-ovate, as long as the petioles ; racemes 

 declined ; pedicels shorter than the calyx and lanceolate bracts ; legume linear, 

 flat, short-stipitate. (Baptisia mollis, Michx.) Rocky woods in the middle 

 districts of North Carolina. April and May. Stem 2 high. Legume 2' - 3' 

 long, many-seeded. 



40. CLADRASTIS, Baf. YELLOW-WOOD. 



Calyx 5-toothed ; the nearly equal teeth short and obtuse. Vexillum large, 

 roundish, reflexed, scarcely longer than the oblong wings and separate keel- 

 petals. Stamens 10, distinct ; filaments slender, incurved above. Legume short- 

 stipitate, linear, flat, thin, marginless, 4 - 6-seeded, at length 2-valved. A small 

 tree, with yellow wood, pinnate leaves, and large white flowers in terminal droop- 

 ing panicled racemes. 



1. C. tinctoria, Raf. (Yirgilia lutea, Michx.) Hill-sides, in rich soil, 

 Tennessee and Kentucky, May. Leaflets 7-11, oval or ovate, acute, smooth, 

 parallel-veined, 3'- 4 'long; the common petiole tumid at the base. Stipules 

 none. Racemes 1 long. Flowers 1' long. 



41. SOPHORA, L. 



Calyx campanulate, obliquely truncated or 5-toothed. Stamens 10, free or 

 cohering at the base. Style smooth. Legume moniliform, wingless, many- 

 seeded, indehiscent. Seeds subglobose. Trees or shrubs, with unequally pin- 

 nate leaves. Flowers in axillary and terminal racemes. 



1. S. tomentosa, L. Hoary-tomentose ; leaflets 11-17, oblong, coria- 

 ceous, becoming smooth above ; raceme elongated ; calyx minutely 5-toothed. 

 South Florida, near the coast. Shrub 4 -6 high. Flowers showy, yel- 

 low. Legume stipitate, 5' long. 

 10* 



