102 LEGUMINOSJE. (rULSE FAMILY.) 



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

 large, loiii^iHtiukd ; leatlLts smootliisli, ovate or rouiidisli, acuiuiiiatc , rai'cmc 

 or panicle tcriniiial, long-pcdunded, niany-tlowcrctl. — Kich 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 tiic base of the stem, naked, or with one or two leaves near 

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

 ovate, acute or obtuse, white beiu ath ; legume long-sti))itate. — Kieh woods, 

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

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



§ 2. Stamens diadclphoiis : Icgnmc sessile or short stipitatc. 



* Stipules Jareje, ovate (except No. 8), acuminate, persistent: let/ume 3-G-jointed, 



the joints convex on the vpjier suture, rounded 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, coimected by a broad neck. 

 (Iledysarum scaberrlnmm. Ell.) — Dry open woods, Florida to Mississij)])!, and 

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

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



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

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

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

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

 vex on both sutures. — "Waste places. Middle Florida. Se])t. — Stem 3° -5° 

 high. Leaflets 3' - 4' long. Legume I' 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-jointcd, the joints rliombic-oblong, connected by a 

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

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

 Legume li'-2' long. 



7. D. viridiflorum, Beck. Stem stout, tomento.sc, rough above; loaves 

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

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

 .3 _ 4-jointcd, on a stijie twice as long as the calyx, the joints half orbi^nilar, con- 

 nected by a narrow neck. — liich open woods, Florida to Mississijipi, and north- 

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

 greenish. 



, 8. D. Floridanum, n. fip. Stem short, rigid, very rough ; lower leaves 1- 

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

 and strongly reticulate beneath ; stipules lance-subulate ; ]mnicle elougaled, spar- 

 ingly branched, leafless; legume 2- 4-jointed, the stii)e shorter than the calyx; 

 joints obliquely obovatc. — Dry sandy soil, Aiialachicola, Florida. July ami 

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

 stipules and siipcls rigid. Bracts and flowers small. 



