102 LEGUMINOS-'E. (I'LLSK 1 AMII.V.) 



2. D. acummatum, DC. Sum pnbcstent, leal'v at tlie suiniiiit ; knvi'8 

 larjiO, loiiLr-lK'tiijIi'd ; ItaHits sniootlii>li, ovate or rouiulisli, aciiiiiinate , rareme 

 or panicle tcriiiiiial, loiiji-|)i'(hmck'(!, niaiiy-flowercd. — l{ic'li sliady soil, Florida 

 to Misjiissippi, and nortlnvard. July and Aiigu.-t. — I'laiit 'J'^ - .'j° hh^h. Leaf- 

 lets thin, 2'- 4' lonj,'. 



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

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

 the bas:>, mueli lonj^cr than the stem ; leaves lonjj;-petioled, smooth ; leaflets 

 ovate, acute or obtuse, white beneath ; legume lonj^-stipitate. — Kicli woods, 

 Florida to Mississip])i, and northward. July and August. — Stem 6'- 12' high. 

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



^ 2. Stamens diadclphous : lerpimc sessile or short stipitate. 



* Stipules lan/e, ovale (except No. 8), acuminate, ])frsistptit : Icijuiiie ti-G-jointed, 



the joints convex on the vpjKr suture, rounihd 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 tlie legume 3-5, connected !)y a broad neck. 

 (Hedysarum scaberrimiiin, Kll ) — Dry ojten woods, Florida to ^lississijipi, and 

 northward. Jidy and August. — Plant 3° - 5° high, nmeh branched, pale green. 

 Leaflets H'-a' long. Flowers large. 



5. D. moUe, I>C. ? 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. Se])t. — Stem 3° -5° 

 high. Leaflets 3' -4' long. Legume 1' long, i)endulous. Flowers small. 



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

 ovate or lanceolate-ovate, acuminate ; ])anicle mostly simple, elongated ; flowers 

 and bracts large ; legume 4-C-jointed, the joints rliombic-oblong, connc^-ted by a 

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

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

 Legume l^'-2' long. 



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

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

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

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

 nected Ly a narrow neck. — Kich ojjcn woods, Florida to Mississippi, and north- 

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

 greenisli. 



8. D. Floridanum, 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 lanee-subulatc ; panicle elongated, spar- 

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

 joints obliquely obovate. — Dry sandy soil, Apalachicola, Florida. July and 

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

 stipules and stipcls rigid. Bracts and flowers small. 



