leguminosjE. (pulse family.) Ill 



3 B. microphylla, Nutt. Leaves sessile, roundish, cuneate at the base, 

 the upper ones somewhat clasping; stipules leafy, rounded, the upper ones 

 united with the leaves ; flowers axillary, solitary, on short pedicels ; legume 

 roundish. Null. — Alabama and West Florida. — Leaves less than an inch long. 

 Flowers unknown. 



* * Leaves trifoUotate, jietioled. 

 1- Flowers yellow. 



i. B. lanceolata, Ell. Pubescent when young, at length smoothish ; 

 leaves on very short petioles, the upper ones nearly sessile ; leaflets varying from 

 lanceolate to obovate, thick, obtuse, tapering at the base ; stipules and bracts 

 small and caducous ; flowers large, solitary in the axils, and in short terminal 

 racemes, short-pedicelled ; ovary villous ; legume ovate or globose, coriaceous, 

 slender-pointed. — Dry pino barrens, Florida to Korth Carolina, and westward. 

 April and May. — Stem 2° I'.igh. Leaflets 1 '- 2' long. Plant turns black in 

 drying. 



•^. B. VillOSa, Ell. Pubescent ; leaves short-petioled ; leaflets oblong anil 

 obovate, tapering at the base, becoming smooth above ; lower stipules and lance- 

 olate bracts persistent ; racemes many-flowered, declining ; ovary villous ; leg- 

 ume smoothish, coriaceous, oblong, strongly beaked. — Dry sandy soil. North 

 Carolina. May. — Stem stout, 2° high. Leaves and flowers larger than in 

 No. 4, the latter on slender pedicels. Plant turns black in diying. 



6. B. megaearpa, Chapm. Stem smooth, witli slender widely spi-eading 

 branches ; leaves on slender petioles ; leaflets thin, elliptical or obovate, minutely 

 pubescent and glaucous beneath ; stipules and bracts caducous ; I'acemes numer- 

 ous, terminal and opposite the leaves, few-flowered ; flowers large, pale yellow, 

 on slender drooping pedicels ; ovary smooth ; legume large, t(iin, ovoid, slender- 

 pointed. — Light rich soil, Gadsden County, Middle Florida, and along the Flint 

 River, near Albany, Georgia. May.— Stem 2°-3° high. Leaflets U'-2' 

 long. Legume I'-l J' long. Plant unchanged in drying. 



7. B. tinctoria R.Brown. Smooth; branches slender, elongated ; leaves 

 small, on short petioles, the upper ones nearly sessile ; leaflets wedge-obovate ; 

 stipules and bracts minute, caducous ; racemes numerous, short, few-flowered ; 

 flowers small, on short and braetless pedicels ; ovary smooth ; legume small, 

 roundish, slender-pointed, — Dry sandy soil, Georgia to Tennessee, and north- 

 ward. May and June. — Stem 2° high. Leaflets i'-l' long. Plant usually 

 becomes blackish in drying. 



8. B. stipulaeea, Ravenel. Smooth ; branches spreading ; leaves small, 

 short-petioled, 2 - 3-folioIate, the upper ones mostly simple and partly clasping ; 

 leaflets round-obovate, cuneate at the base ; stipules and bracts large, round- 

 cordate, persistent ; flowers numerous, small, axillary, the upper ones racemose ; 

 pedicels short and braetless ; ovary smooth, or slightly pubescent on the edges ; 

 legume small, ovoid, slender-pointed. — Sand-hills, near Aiken, South Carolina, 

 Raeenel. June and July. — Stem 2°-3° high. Leaflets J'-.^' long. Plant 

 nearly unchanged in drying. Apparently allied to No. 3. 



9. B. Lecontel, Torr. & Gray. Pubescent ; stem diflrisely branched ; 

 leaves small, short-petioled ; leaflets euneate-obovate ; stipules subulate and ca- 



