LEGUMINOS^E. (PULSE FAMILY.) 107 



varying from oblong-ovate to lanceolate and linear, very veiny, shining ; 

 peduncles 1 - 4-flowered ; calyx-teeth liuear-awl-shaped. Sandy dry woods, 

 Virginia and southward. July. Corolla 1' long, violet. Pods straight, nar- 

 row, 4 f -5' long. 



29. BAPTIS1A, Vent. FALSE INDIGO. 



Calyx 4 - 5-toothed. Standard not longer than the wings, its sides reflexed : 

 keel-petals nearly separate, and, like the wings, straight. Stamens 10, distinct. 

 Pod stalked in the persistent calyx, roundish or oblong, inflated, pointed, many- 

 seeded. Perennial herbs, with palmately 3-foliolate (rarely simple) leaves, 

 which generally blacken in drying, and racemed flowers. (Named from fiairrifa, 

 to dye, from the economical use of some species, which yield a sort of indigo.) 



1. B. tinctoria, R. Brown. (WILD INDIGO.) Smooth and slender 

 (2 -3 high), rather glaucous; leaves almost sessile; leaflets rounded wedge- 

 obovate (f long); stipules and bracts minute and deciduous ; racemes few-flowered, 

 terminating the bushy branches ; pods oval-globose, on a stalk longer than the 

 calyx. Sandy diy soil, common. June - Aug. Corolla yellow, ' long. 



2. B. anstralis, R. Brown. (BLUE FALSE-INDIGO.) Smooth, tall 

 and stout (4 -5); leaflets oblong- wedge-form, obtuse; stipules lanceolate, as 

 long as the petioles, rather persistent ; raceme elongated (l-2) and many-Jfawered, 

 erect; bracts deciduous; stalk of the oval-oblong pods about the length of tlie calyx. 



Alluvial soil, from Penn. westward and southward: often cultivated. June. 

 Flowers 1' long, indigo-blue. Pods 2' -3' long. 



3. B. Idicailtlia, Torr. & Gr. Smooth ; stems, leaves, and racemes as 

 in No. 2 ; stipules early deciduous ; pods oval-oblong, raised on a stalk fully twice the 

 length of the calyx. Alluvial soil, Ohio to Wisconsin and south westward. July. 



Flowers white ; the standard short. Pods 2' long. 



4. B. alba, R. Brown. Smooth (l-3high); the branches slender and 

 widely spreading; petioles slender, stipules and bracts minute and deciduous; leaf- 

 lets oblong or oblanceolate ; racemes slender on a long naked peduncle ; pods 

 linear-oblong (I 1 - \# long), short-stalked. Dry soil, Virginia and southward. 

 May, June. Flowers white, '-' long. 



5. B. leticopluea, Nutt. Hairy, low (1 high), with divergent branches, 

 leaves almost sessile ; leaflets narrowly oblong-obovate or spatulate ; stipules and 

 bracts large and leafy, persistent ; racemes long, reclined ; flowers on elongated pedicels ; 

 pods ovoid, hoary. Michigan to Wisconsin and southward. April, May. 

 Raceme often 1 long: pedicels l'-2', the cream-colored corolla 1', in length. 



3O. CL.ADRASTIS, Raf. YELLOW-WOOD. 



Calyx 5-toothed. Standard large, roundish, reflexed: the distinct keel-petals 

 and wings straight, oblong. Stamens 10, distinct : filaments slender, incurved 

 above. Pod short-stalked above the calyx, linear, flat, thin, marginless, 4-6- 

 seeded, at length 2-valved. A small tree, with yellow wood, nearly smooth, 

 with pinnate leaves of 7-11 oval or ovate leaflets, and ample panicled racemes 

 of showy white flowers drooping from the end of the branches. Stipules obso- 



