64 DICOTYLEDONOUS. 



pearance of being only 4 toothed. Vexillum broad and large. 

 jfiTeeZ obtuse. Stamens diadelphous. Style bearded next the 

 free stamen. Legume compressed, many seeded, long, the pla- 

 cental suture margined. Seeds compressed. Trees or shrubs^ 

 with stipular spines. Leaves unequally pinnate. 



1. R. PsEUDACAciA. A tree, with virgate branches. Leaves with 4-7 

 pairs of leaflets. Zea/e^s frequently alternate, oval, emarginate, with seta- 

 ceous stipules. Fli,wers odorous, in axillary racemes. Calyx pubescent, 

 spotted. Legumes 2—3 inches long, smooth. 



White. T7, March— April. A large tree among the Monutains, 60-80 

 feet ; smaller in the middle country. 30-40 feet. 



2. R. ViscosA. A small tree vvith viscid branches. Leaves with 5-7 

 pairs. Leaflets ovate, stipular spines very short. Petioles glandular-viscid. 

 Flowers inodorous, in axillary, erect racemes. Legumes obliquely lanceolate, 

 mucionate, 3"5-seeded, glandular-viscid. 



White, tinged with red. T^. Mountains. Car. &, Geo. 20 -40 feet. 



3. R. HispiDA. A small shrub, the young branches reddish, hispid. 

 Leaves unequally pinnate. Leaflets oval nearly round, nmcronate ; almost 

 destitute of stipular spines. Racemes loose, flowers inodorous, axillary. 



Rose color. T^- April. Mountains. 3 -6 feet. 

 Var. Rosa. Leaflets mostly scattered, not hispid, stipules spiny ; young 

 branches petioles and under surface of the leaves pubescent. 

 Middle Carolina and Georgia. 2-4 feet. 



Var. Nana. Very small shrub, scarcely a foot high. Near Columbia 

 South Carolina and Macon Geo. 



Genus XVIII. TEPHROSIA. 



Calyx 5. toothed. Teeth subulate nearly equal ; no bracts 

 at the base of the calyx. Vexillum large, nearly round, 

 spreading or reflexed. Generally monadelplious. Style usu- 

 ally bearded, filiform. Legume sessile, compressed, coriaceous, 

 many seeded. Seeds compressed. Herbaceous plants, with 

 unequally pinnate leaves. 



1. T. ViRGiNiANA. Stem erect, pubescent, in dense branches, slightly an- 

 gular. Leaflets numerous, oblong-lanceolate, mucronate, silky-pubescent- 

 Flowers '\n terminal racemes, compact. Ca/i/o: deeply S-cleft, hairy. Legume 

 compressed, hairy. Seeds reniform. 



Dull yellow tinged with purple. %. May — July. Common in pine 

 barrens. 10-15 inches. 



2. T. Paucifolia. Stem erect or decumbent, pilose hispid, with rusty 

 hairs. Leaves scattered, few. Leaflets A-1 pairs, eliptic, often slightly cune- 

 ate, mucronate, silky-pubpscent, petiole villous. Flowers on long peduncles, 

 opposite the leaves, bearing but few flowers, 4-5. Calyx hispid. Vexillum 

 hairy on the outer surface. Legwne compressed, hispid. 



Purplish red. %. June — Sept. Common in pine woods. 10-15 in. 



3. T. Htspidula. Stem erect much divided, dichotomous, slightly pubes- 

 cent. Leaflets numerous 11-17, eliptical-oblong, mucronate glabrous on the 

 upper surface, hirsute on the lower, slightly retnse. Racemes as long as the 

 leaves, few flowered, opposite the leaves. Calyx very villous, segments ex- 

 panded. Legume straight, mucronate, somewhat hispid. Seeds reniform, 

 compressed, spotted. 



Pale red. %-. May — Aug. Dry soils, common. 10-18 inches. 



4. T. Chrysophylla. Stem prostrate, pubescent, dichotomous. Leaves 



