302 Oedee 46.— LEGXJMINOS^. 



sistent ; petals of about equal length, those of the keel nearly distinct 

 and straight; vexillum orbicular, emarginate ; stamens 10, distinct, 

 deciduous ; legume inflated, stipitate, many (or by abortion few)- 

 seeded. — if Lvs. palmately 3-foliate, or simple. 



§ Leaves simple. Flowers yello vr ^^'-^ — \ 



% Leaves 8-foliate.— Fls. blue, in few elongated racemes «o. 4 



— Fls. -white in few elongated racemes, (a) 

 —Fls. yellow, solitary or in short racemes, (b) 



a Stipules leaf-like, longer than the petioles Nos. B, 6 



a Stipules much shorter, or not longer than the petioles •. . . • J^os. 7, 8 



b Pedicels not lonfier than the calyx. Drying nark ftos. 9, 10 



b Pedicels much longer than tho calyx. Drying bright.Nos. 11—18 



1 B. perfoliata B. Br. Glabrous and glaucous, lvs. oval, orbicular, perfoliate; 

 fls. soUta/ry, aaittary.—S. Car. and Ga. (Savannab, Feay) in the pine woods. St. 

 branching, 1 to 2f high. Lvs. large (2 J by 2'), all turned one way, and com- 

 pletely closed at base around the stem or branch. Corolla 6" long, on a pedicel 

 half as long. Pod large, inflated. A remarkable species. May— JL 



2 B. microph^Ua Nutt. "Los. simple, sessile, roundish, cuneiform; the upper 

 somewhat clasping, stipules roundish ; fls. axillary ; legumes short, subglobose." — 

 W. Ifla. to Ala. St. much branched. Lvs. small (7 to 10" in length), the upper 

 partially coalescing with the stipules. Described by Mr. NuttaU from late fruit- 

 ing specimens. Not since found ? . 



3 B. simplicifdlia Croom. Glabrous ; lvs. broadly ovate, obtuse, sessile ; slip, 

 none; racemes terminal, elongated, many-flowered; bracts ovate, as long as the 

 pedicels. — Quinoy. Ma. St. furrowed, branching, 2 to 3f high. Lvs. large (2 to 

 4' by 1^ to 3'), rather firm, shining above. Hs. 8" lon^, the pedicels shorter. 

 Leg. ovate, about 6" long. Jn. — Sept. 



4 B. australis R. Br. Glabrous ; petioles short ; Ifts. obovate or somewhat ob- 

 long, obtuse ; stip. lanceolate, rather longer than the petioles, distinct at base ; 

 rac. long, erect ; leg. oblong-oval, stipe long as the calyx. — Alluvial soUs, Ohio 

 River to Ga. and La. St. 2 to 3f high, branched. Petioles 1 to 6" long. Lfls. 

 IJ to 3' by I to 1', sometimes acute. Stip. J to 1' long. Fls. indigo blue, large, 

 very showy. Pod about 2' long. Jn. — Aug. 



5 B. leuoophaea Nutt. Villous; petioles almost 0; Ifts. oblanceolate, varying 

 to obovate ; stip. and tracts large, triangular-ovate, persistent ; rac. nodding, the 

 many fl/jwers turned to the upper side on their long pedicels ; leg. ovoid or roundish, 

 inflated. — Common in wild prairies, "W. States and southward. St. 2 to 3f high, 

 smoothish when old. Lfts. 2 to 3' by J to 1', stipules more than half as large. 

 Rac. 20 to 50-flowered, inclined horizontally. Pedicels 1 to 2' long. Corollas 

 very large, ochroleucous. Apr. 



6 B. villosa Ell. Villous-pubesoent ; petioles almost 0; lfts. lance-oblong, or 

 oblanceolate ; slip, lance-linear, persistent ; rac. long (erect 7) ; 6raeto minute, de- 

 ciduous; ped. notsecund; leg. oblong. — N. Car. to Ga., rare. Plant of coarse as- 

 pect, as well as No. 5, 2 to 3f high. Lfts. 2 to 3' long, obtuse, tapering at base, 

 becoming smoothish when old. Pis. dirty white, nearly 1' long. Jn., Jl. 



7 B. leucdntha Torr & Gr. Glabrous and glaucous ; lvs. petiolate ; lfts. cunei- 

 form-obovate, obtuso; stip. lance-linea/r about as long as petioles, often caducous; 

 rac. elongated, erect ; bracts caducous ; leg. inflated, stipitate. — Conspicuous in 

 rich soils, prairies, etc., W. States to Ga. and Pla. St. thick, 2 to 4f high, 

 branched above. Rao. 6 to 24' long, with large white fls. Lfts. 1 to 2' long. 

 The whole plant turns bluish-black in drying. May — Jl. 



8 B. alba R. Br. Glabrous, fastigiate-branched above; petioles slender; lfts. 

 elliptic-oblanoeolate, acute at base; stip. cmd bracts minute, caducous; rac. erect 

 or nodding, on a long peduncle ; pedicels rather longer than calyx. In rich soils, 

 Ta. to Fla. Plant 2 to 3f high. Lfts. about 1' long, a third as wide, the petiole 

 about half as long. Pis. pure white. Plant does not blacken in drying. Mar. Apr. 



9 B. lanceol^ta Ell. Much branched, bushy ; Iva subsessile ; lfts. narrowly 

 elliptic, varying to oblanceolate, tapering to a petiolule, obtuse; stip. almost 

 none ; fls. axillary, subsolitary, short-pedicelled ; leg. ovate-gibbous. Pine woods, 

 S. Car, to Fla. and La. About 2f high. Foliage yellowish-green ; lvs. 2 to 3" 



