102 LEGUMINOS.E. (PULSE FAMILY.) 



2. D. acuminatum, DC. Stem pubescent, leafy at the summit ; leaves 

 large, long-petioled ; leaflets smoothish, ovate or roundish, acuminate , raceme 

 or panicle terminal, long-peduncled, many-flowered. — Rich shady soil, Florida 

 to Mississippi, and northward. July and August. — Plant 2° -3° high. Leaf- 

 lets thin, 2'- 4' long. 



3. D. nudiflorum, DC. Stem smooth, short, leafy at the summit ; pan- 

 icle ascending from the base of the stem, naked, or with one or two leaves near 

 the base, much longer than the stem ; leaves long-petioled, smooth ; leaflets 

 ovate, acute or obtuse, white beneath ; legume long-stipitatc. — Rich woods, 

 Florida to Mississippi, and northward. July and August. — Stem 6'- 12' high. 

 Racemes simple or compound, on peduncles 2° - 3° high. 



§ 2. Stamens diadelphous : legume sessile or shoii stipitate. 



* Stipules large, ovate (except No. 8), acumiimte, persistent: legume 3-6-jointecl, 



the joints convex on the upper suture, rounikd on the lower one. 



4. D. canescens, DC. Stem tall, rough-hairy, striate ; leaflets ovate, 

 mostly acute, very rough, especially beneath ; panicle large, very hairy ; bracts 

 large, ovate, acuminate; joints of the legume 3-5, coimccted by a broad neck. 

 (Hedysarum scaberrimum. Ell ) — Dry open woods, Florida to Mississippi, and 

 northward. July and August. — Plant 3° - 5° high, much branched, pale green. 

 Leaflets l^'-3' long. Flowers large. 



5. D. moUe, DC. ? Stem tall, much branched, softly pubescent ; leaflets 

 rhombic or elliptical, obtuse and often emarginate, tomentose beneath, rough 

 above ; racemes panicled, slender ; flowers 2-3 together, on slender pedicels ; 

 legume nearly sessile, black ; the small joints oval or rhombic, equally con- 

 vex on both sutures. — Waste places. Middle Florida. Sept. — Stem 3° -5° 

 high. Leaflets 3' -4' long. Legume 1' long, pendulous. Flowers small. 



6. D. CUSpidatum, Ton-. & Gray. Stem smooth, erect ; leaves smooth, 

 ovate or lanceolate-ovate, acuminate ; panicle mostly simple, elongated ; flowers 

 and bracts large ; legume 4 - 6-jointed, the joints rhombic-oblong, connected by a 

 broad neck. (H. bracteosum, Michx.) — Dry open woods, Florida to Mississippi, 

 and northward. July and August. — Stem 3° -.5° high. Leaflets 3' -5' long. 

 Legume l^'-2' long. 



7. D. viridiflorum, Beck. Stem stout, tomentose, rough above ; leaves 

 large ; leaflets ovate or roundish, obtuse, very rough above, pale and velvety 

 beneath ; stipules ovate, acuminate, rather small ; panicle large, leafless ; legume 

 3 - 4-jointed, on a stipe twice as long as the calyx, tlie joints half orbicular, con- 

 nected by a naiTow neck. — Rich open woods, Florida to Mississippi, and north- 

 ward. August. — Stem 3° -4° high. Leaflets 2' -4' long. Corolla turning 

 greenish. 



8. D. Ploridanum, n. sp. Stem short, rigid, very rough ; lower leaves 1- 

 foliolate ; leaflets lanceolate-ovate, acute or obtuse, very rough above, pubescent 

 and strongly reticulate beneath ; stipules lance-subulate ; panicle elongated, spar- 

 ingly branched, leafless; legume 2 -4-jointed, the stipe shorter than the calyx ; 

 joints obliquely obovate. — Diy sandy soil, Apalacliicola, Florida. July and 

 August. — Proper stem 1° high, the panicle 2° -3°. Leaflets 2' -3' long, the 

 stipules and stipels rigid. Bracts and flowers small. 



