404 DIADELPHIA DECANDRIA 



with the sides reflexed. Stamens deciduous. Legume ventricoae 

 stipitate, many-seeded, 



1. B. tixctoria, Br. Leaves trifoliate, petiolatc, the upper one* 

 subsessile ; leaflets cuneate-obovate ; stipules minute, subulate, decid- 

 uous ; racemes terminal, few-flowered ; legume on a long stipe. Beck. 

 Bot. p. 77. 



Podalyria tinctoria. Willd. Sp. 2. p. 503. Mx. Am. I. p. 265. P er9t 

 Syn. 1. p. 453. MuhL CataL p. 41, Punk, Am. 1. p. 308. Bigei 

 Boat. p. 170. 

 Dyer's Baptisia. Vulgo— Wild Indigo. 



Plant glabrous, turning bluish black in drying. Root perennial. Stem about 'I 

 foot high, herbaceous, much branched and bushy. Leaflets half an inch loan inck 

 long, and 1 fourth to half an inch wide, cuneate-obovate, rounded at apex and often 

 •lightly emarglnate, subsessile ; common petiole 1 line to 1 fourth of an inch Ions 

 Flowers in small terminal racemes ; pedicels 1 to 3 or 4 lines long. Calyx 4-cleft, 

 the upper segment larger, (or 2 segments cohering in one), and rather obtuse. 

 Petals yellow. Legumes 1 third to half an inch long. Inflated or roundish, will 

 keel-like margins, mucronate with the subulate persistent style,— finally elevated 

 on a slender exserted stipe as long or longer than the pedicel of the (lower, auu 

 leaving the calyx apparently near the middle of the pedicel. 



Uab. Dry hilly woodlands: common. Ft. June -August. Fr. September. 



Obs. It is said this plant will yield a considerable quantity of inferior Indite, 

 Six or seven additional species are enumerated in the Southern States of thii 



Union. 



2. Lotus Tribe. Stamens with the filaments united. Legume continuum. 

 Lotba. DC. 



Sub-Tribe 1. Mostly frulicosc. Leaves simple, or trifoliate, rarely pinnate. 

 Stameris mostly Monadelphous. Genisteje. DC. 



33.). CROTALARIA. /,. Jfutt. Con. 593. 

 [Greek, K/otaloti, a rattle; the seeds becoming loose in the mature pods.] 



Calyx 5-parted, sub-bilabiate ; upper lip bifid, lower liptrifid. VexiU 

 lum large, mostly obcordate; keel falcate, acuminate. Filament* all 



nailed, or often with a fissure on the upper side. Legume turgid, in- 

 flated, stipitate, mostly many-seeded. 



1. C. sagittalis, L. Stem erect, hirsute; leaves simple, oblong- 

 lanceolate, hairy ; stipules lanceolate, acuminate, decurrent ; racemes 

 about 3-flowered. Beck, Bot. p. 77. var. oblonga. Mx. Am. 2. p. 55. 

 Arrow-like Crotalaria. Vulgo — Rattle-box. 



Root annual. Stem herbaceous, 4 to 8 or 10 inches high, somewhat branched 

 above. Leaves half an inch to 2 inches long, and 2 or 3 lines to half an inch wide, 

 sessile, the lower ones somewhat elliptic-lanceolate, the upper ones sublinear ; 

 stipules of the upper leaves decurrent, sagittate at summit. Racemes mostly op- 

 posite the leaves, pedunculate, 2 to 4-flowered ; pedicels 2 or 3 lines in length, hir- 

 sute, with a small leaf-like lanceolate bract at base. Calyx hairy ; segments lin. 

 ear-lanceolate, rather longer than the corolla. Corolla yellow; vexillum broad, 

 eaneate-obovate. Legume 3 fourths of an inch to an inch long, and 1 third to half 

 an inch in diameter, inflated, smooth, finally nearly black, obliquely mucronat 



