o 



LEGUMINOS.E. (PULSE FAMILY.) 121 



lina. May. Stem 2 high. Leaves 2' -3' long. Flowers small, yellow; 

 vexillum orbicular, emargiuate, shorter than the wings and keel. Ovary aud 



style smooth. 



* * Leaves trifoliolate, petioled, 



t- Floirers yellow. 



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

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

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

 liracts 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 pine barrens. April -May. Stem 2 

 high. Leaflets 1'- 2' long. Plant turns black in drying. 



4. B. villosa, Ell. Pubescent; leaves short-petioled ; leaflets oblong 

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

 and lanceolate bracts persistent; racemes many -flowered, declining; ovary 

 villous; legume smoothish, coriaceous, oblong, strongly beaked. Dry sandy 

 soil, North Carolina. Mav. Stem stout, 2 high. Leaves and flowers larger 

 than in Xo. 3, the latter on slender pedicels. Plant turns black in drying. 



5. B. megacarpa, Chapm. Stem smooth, with slender widely spread- 

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

 minutely pubescent and glaucous beneath ; stipules aud bracts caducous ; 

 racemes numerous, terminal and opposite the leaves, few-flowered; flowers 

 large, pale yellow, on slender drooping pedicels ; ovary smooth ; legume large, 

 thin, ovoid, slender-pointed. Light rich soil, Gadscleu County, Middle Flor- 

 ida. May. Stem 2 - 3 high. Leaflets 1-J' - 2' long. Legume 1' - l' long. 

 Plant unchanged in drying. 



6. B. tinctoria, II. 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 bractless pedicels ; ovary smooth ; 

 legume small, roundish, slender-pointed. Dry sandy soil. May -June. 

 Stem 2 high. Leaflets ' - 1' long. Plant usually becomes blackish in drying. 



7. B. stipulacea, Kavenel. Smooth^ branches spreading; leaves 

 small, short-petioled, 2 - 3-foliolate, 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 bractless ; ovary smooth, or slightly pubes- 

 cent on the edges; legume small, ovoid, slender-pointed. (B. microphylla, 

 Xntt.) Sand-hills, near Aiken, South Carolina (Raveuel). June -July. 

 Stem 2 -3 high. Leaflets i'-f long. Plant nearly unchanged in drying. 



8. B. Lecontei, Torr. & Gray. Pubescent; stem diffusely branched; 

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

 caducous, or the lower ones larger and persistent ; racemes numerous, short, 

 few-flowered, somewhat leafy at the base ; bracts ovate lanceolate, persistent ; 

 flowers small, on long 2-bracted pedicels ; ovary villous ; legume small, ovoid, 

 slender-pointed. Dry sandy soil, Florida and the southern parts of Georgia. 

 May- June. Stem 2 high. Leaflets 1' long. Plant unchanged in drying. 



