Voi,. II.] PEA FAMILY. 



5. Baptisia alba (L.) R. Br. White Wild 

 Indigo. (Fig. 2053.) 



Crotalaria alba L Sp. PI. 716. 1753- 



Baptisia alba R. Br. in Ait. Hort. Kew. Ed. 2, 3: 6. 1811. 



Glabrous throughout, divergently branching, i-3 

 high. Leaves petioled, 3-foliolate; petioles slender, 

 3 // -9 // long; leaflets oblong or oblanceolate, narrowed 

 at the base, obtuse at the apex, I'-i^' long, 4 // -6 // 

 wide, rather thin, green in drying; stipules and bracts 

 minute, subulate, early deciduous; racemes elongated, 

 erect, 6 / -io / long, lateral, long-peduncled; pedicels 

 3 // -8 // long; flowers white, 6"-l f/ long; pod linear- 

 oblong, about \y z ' long, 4" thick, abruptly tipped 

 with an almost filiform deciduous style. 



In dry soil, Missouri to southern Indiana, south to Lou- 

 isiana, east to North Carolina and Florida. May-June. 



267 



6. Baptisia leucantha T. & G. Large White Wild Indigo. (Fig. 2054.) 



Baptisia leucantha T. & G. Fl. N. A. i: 385. 

 1840. 



Glabrous throughout, succulent, branch- 

 ing, 2-4 high, the branches stout, ascend- 

 ing. Leaves petioled, 3-foliolate, blackening 

 in drying; leaflets obovate or oblanceolate, 

 i / -2 / long, 6 // -i2 // wide, very obtuse, 

 rounded and sometimes slightly ernargi- 

 nate at the apex, narrowed or cuneate at 

 the base; stipules lanceolate or linear, equal- 

 ling or shorter than the petioles, deciduous; 

 racemes lateral, sometimes i long, loosely 

 flowered; flowers white, 9 // -io // long; pedi- 

 cels 2 // -3 // long; pod ellipsoid, long-stalked 

 in the calyx, about 9" long, tipped with the 

 subulate style. 



In rich soil, Lake Erie to Minnesota, south 

 to Kentucky, North Carolina, Florida and 

 Texas. June-July. 



5. CROTALARIA L. Sp. PL 714. 1753- 



Herbs, sometimes slightly woody, with simple (or in some tropical species 3-7-foliolate) 

 leaves, and racemose flowers. Calyx 5-toothed, slightly 2-lipped. Standard orbicular or 

 ovate, often cordate; wings oblong or obovate; keel curved. Stamens monadelphous, their 

 sheath deeply cleft; anthers of 2 forms, alternating with each other, the one small, versatile, 

 the other larger. Ovary sessile or short-stalked; style more or less curved. Pod oblong or 

 globose, inflated, coriaceous or membranous, many-seeded, the seeds loose at maturity. 

 [Greek, a rattle. ] 



About 250 species, mainly natives of tropical regions, 

 occur in the southern and southwestern United States. 



Besides the following some 7 others 



Stem and branches erector ascending; leaves, at least the upper, lanceolate or oblong. 



i. C. sagittalis. 

 Stems prostrate, from a deep root; leaves broadly oval. 2. C. rotundifolia. 



