360 . LEGUMINOSiE. Desmodium. 



6. D. DUlenii (Darlingt.): stem erect, branching, hairy ; leaflets oblong 

 or ovate-oblong, somewhat villous and glaucous beneath; stipules subulate; 

 racemes paniculate, rather loose and slender ; bracts ovate-lanceolate ; upper 

 lip of the calyx entire or slightly emarginate, middle lobe of the lower hp 

 twice as long as the lateral ones; stamens diadelphous nearly to the base; 

 legumes with 3-4 oblong reticulated pubescent joints. — Darlingt. ! fl. Cest. 

 p. 414. D. Marilandicum, UC.jirodr. 2. p. 328 (excl. syn. Linn.) ; Beck! 

 hot. p. 84. Hedysarum Marilandicum, IViltd. sp. 3. p. 1189 (not of Linn.) ; 

 Pursh, fl. 2. p. 482 ; Ell. sk. 2. p. 214. H. trifoliatum &c., Dill. Ellh. 174, 

 t. 144./ 171. 



Rich moist soils, Massachusetts! to Pennsylvania! west to Kentucky! 

 August.— Stem about 3 feet high sulcate. Leaflets 2-3 inches long, and 1-2 

 inches wide, usually ovate-oblong, rather obtuse, nearly glabrous above ; the 

 pubescence of the lower surface not scabrous to the touch. Stipules much 

 smaller than in the preceding species. Panicle large, naked; the branches 

 scabrous with very minute uncinate prickles, not canescent; pedicels 2-4 

 lines long : bracts deciduous. Flowers purple, changing to bluish-green in with- 

 ering. Legume three-fourths of an inch long; the joints distinctly rhombic 

 and^connected by a narrow isthmus. — Allied to the preceding species; but 

 readily distinguished by its scabrous stem, narrow stipules, fewer joints of 

 the legume, &c. 



7. D. cicspidatum : stem erect, glabrous ; leaflets ovate or lanceolate-ovate, 

 acuminate, glabrous ; stipules lanceolate with a subulate point ; panicle large, 

 elongated, sparingly branched ; bracts (conspicuous) ovate, cuspidate ; upper- 

 lip of the calyx slightly bifid ; lateral teeth of the lower lip triangular; about as 

 long as the tuba, the middle one much longer, lanceolate ; stamens perfectly 

 diadelphous; legumes with 4-6 triangular-oblong hispid joints. — D. bracte- 

 osum, DC.prodr. 2. p. 329; Beck.bot.p. 85; Darlingt.! fl. Cest. p. 416. 

 H. cuspidatum, MiM. in Willd. sp. 3. p. 1198; Pursh, fl. 2. p. 482 ; Bigel. 

 ft. Bo.tt. p. 276. H. bracteosum, Michx. ! fl. 2. p. 73 ; Pursh, ft. 2. p. 483 ; 

 Ell.sk.2.p.2\'i. 



Banks ot rivers and borders of woods, Canada! to S. Carolina and Florida ! 

 west to Arkansas ! — August. — Stem 4-5 feet high, Avith few branches. Leaf- 

 lets 3-5 inches long, and l-2ii inches wide, tapering to a long acute point. 

 Stipules glabrous, deciduous. Partial stipules conspicuous, subulate. Pa- 

 nicle often 2 feet long ; the racemose branches slightly scabious with a minute 

 uncinate pubescence. Flowers often sterile. Bracts large, broad at the base, 

 with a long acute point. Corolla purplish-violet. Legume 1^-2 inches long. 



8. D. viridiflorum (Beck) : stem erect, densely pubescent and somewhat 

 glabrous towards the summit; leaflets ovate, mostly obtuse, scabrous above, 

 velvety-villous beneath; stipules ovate-lanceolate, acuminate, caducous ; pan- 

 icle elongated, naked ; upper lip of the calyx slightly bifid ; lowest tooth lan- 

 ceolate, nearly twice as long as the triangular lateral ones; stamens some- 

 what monadelphous at the base ; legumes of 3-4 obtusely triangular joints. — 

 Beck, hot. p. 83; Darlingt. fl. Cest. p. 415, not of DC. Hedysarum viridi- 

 florum, Linn. ! sp. 1055; Ell. sk. 2. p. 217, not of Willd. H. caule recto, &c. 

 Gronov. ! Virg.p. 109. 



Alluvial soils, Pennsylvania ! to Florida ! Alabama, Dr. Gates ! Red Riv- 

 er, Louisiana, /Jr. Hale ! Aug.— Stem 3-4 feet high, rather stout, panicu- 

 lately branched. Leaflets 2-3 inches long ; the lower surface clothed with a 

 thick and very soft pubescence. Panicle very large. Bracts small, broadly 

 ovate. Calyx very hairy, scarcely \ the length of the corolla. Corolla violet- 

 purple, turning greenish in withering. Legume about li inch long ; the 

 joints convex above, obtusely angular below. — This is the original Hedysa- 

 rum viridiflorum of Linnaeus, as has been ascertained by Dr. Boott; but not 

 the plant described under this name by Willdenow, Pursh, and others. 



