Vou. IL.] PEA FAMILY. 267 
5. Baptisia alba (L.) R. Br. White Wild 
Indigo. (Fig. 2053.) 
Crotalaria alba J. Sp. Pl. 716. 1753. 
Baptisia alba R. Br. in Ait. Hort. Kew. Ed. 2, 3:6. 1811. 
Glabrous throughout, divergently branching, 1°-3° 
high. Leaves petioled, 3-foliolate; petioles slender, 
3/-9’’ long; leaflets oblong or oblanceolate, narrowed 
at the base, obtuse at the apex, 1’-1%4’ long, 4’/-6’’ 
wide, rather thin, green in drying; stipules and bracts 
minute, subulate, early deciduous; racemes elongated, 
erect, 6-10’ long, lateral, long-peduncled; pedicels 
3’/-8” long; flowers white, 6’’-7’’ long; pod linear- 
oblong, about 114’ 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. 
6. Baptisia leucantha T. & G. Large White Wild Indigo. (Fig. 2054.) 
Baptisia leucantha T. & G. Fl. N. A. 1: 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, 
1/-2’/ long, 6//-12’’ wide, very obtuse, 
rounded and sometimes slightly emargi- 
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 1° long, loosely 
flowered; flowers white, 9’/-10’’ 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. Besides the following some 7 others 
occur in the southern and southwestern United States. 
Stem and branches erect or ascending; leaves, at least the upper, lanceolate or oblong. 
1. C. sagt tlalis. 
Stems prostrate, from a deep root; leaves broadly oval. 2. C. rotundifolia. 
