70 DICOTYLEDONOUS. 



fid, the lower trifid. Corolla much larger than the calyx, showy. Legume 

 very hispid, 6-10-jointed. 



Yellow, tinged with red, #. Aug. Along rivers. 2-3 ft. 

 2. jE. Viscidula. Stem prostrate, viscidly pubescent, slender, diffuse. 

 Leaflets generally 7-9, obovaie, oblique, lanceolate. Peduncles generally 2- 

 flowered bracis like the stipules; calyx almost equally 5 cleft. Lomen* 

 turn with 2 joints, hispid. 



Genus XXXII. HEDYSARUM. {Syn. Desmodium. 



Calyx S-cleft, bilabiate, upper lip 2.cleft or 2.toothed ; the 

 lower lip 3-cleft or S-toothed, ustjally bracteolate, bearing the 

 corolla at its base. VexiUum nearly round ; keel obtuse. — 

 Stamens 10, somelimes partially monodelphous ; but usually 

 diadelphous. Stigma Cci\)\i?iiQ, Legume composed of several 

 1-seeded joints, compressed. Leaves usual!}' trifoliate. Her- 

 baceous and sufTructicose plants. Flowers becoming more 

 or less green by age. 



1. H. NcjDiFLORUM. Stem simple, erect, pubescent, leafy at the summit. 

 "Leaves ternate; leaflets oval, or broad ovate, acuminate, pale beneath, 

 slightly scabrous above. Flowers in an elongated loose panicle ; pedicels fil- 

 iform ; calyx with short teeth, spreading, the lower tooth longest. Petals 

 nearly equal, tlie vexillnm marked by two dark spots at the base. Stamens 

 monodelphous. Legume pubescent, 3-4-jointed, stiped. 



Purple. %-. July — Aug. Common in ricli shaded soils of middle Ga. 

 6-12 in. 



2. H. AcuMLVATUM. ^tem erect, simple pubescent, leafy at the summit. 

 Leaves teraate, ovale, nearly orbicular, acuminate, terminal one the broad- 

 est, on long petioles, slightly hairy. Flowers m a terminal panicle, with a 

 very long naked peduncle 1--2 feet ; calyx 4-toothed ; petals nearly equal in 

 length; stamens monodelphous. Lee7/?/ie with 2 -4 rounded join is. 



IN'early while, or pale violet. %. June — Aug. Common in shaded 

 places. 10--15 tn. 



3. H. Caxescexs. Stem erect, scabrous, branching, striate. Leores ter- 

 nate; leaflets ovale, tapering at thic apex, pubescent on both sides, stipulate. 

 Flowers in large terniinal canescent panicles ; calyx hairy, conspicuously 

 bilabiate, vvith acute segments ; corolla much larger than the calyx. Legume 

 large, 3—6 jointed, scarcely stiped, truncate at each end. 



Violet purple. %. July — Aug. Moist soils, common, 3 4 ft. 



4. H. CrsriDATrM. Stem erect, glabrous towards the base, scabrous near 

 the summit. Le^/resternaie ; leaflets ovate, acufe, acuminate into a long 

 point. i^/o!rers in large, sparmgly branched panicles 1-2 feet long ; bracts 

 large. CoZj/>r 5 cleft, tiie lower segment long. Corolla large. .S^oTnens dia- 

 delphous. Lefi-M/ne scabrous, segments nearly triangular, 3-6. 



Purplish violet, %. Aug. — Sept. Common oii the banks of streams. 4--5 ft 



5. H. ViRioiFLORUM. Stem erect, pubescent. Leaves ternate; leaflets 

 ovate, obtuse, scabrous on the upper surface, villous beneath. Flowers in an 

 elongated, naked panicle; peduncles scabrous. Ca/?/x hairy, short, the low- 

 er segment longest. Stamens generally diadelphous. Legume with 3—4 ob- 

 long, triangular join s. 



Purplish. %. June to Oct. Common 3--5 feet. 



6. H. Rhombifolium. Stem erect, pubescent. Leaves ternate, somewhat 

 coriaceous; leaflets rhomboidal, obtuse, pubescent along the veins, rugose, 



{)aler beneath. i^'Zoj^-ers in compound racemes, scabrous; bracts small ; ca- 

 yx with the lower segment longest. Legume w'lih 2--4 joints, hispid, nearly 

 rhomboidal. 



Purple. %. Sept.— Oct. On the coast of Car- & Geo. 2-3 feet. 



