234 XLVII. LEGUMINOS^. Crotalaria. 



ginate, about equaling the petiole, more or less pubescent beneath ; rac. axillary, 

 subumbellate, lower ones with apetalous flowers ; ji$. in pairs ; leg. ovate, smooth- 

 ish, much longer than the calyx. — Dr}' woods, Can. and U. S. Root creeping 

 and woody. Stems clustered, slender, 8 — 14' long. Apetalous flowers few, the 

 complete ones seldom producing fruit. Leaflets G — 12" by 4 — 8". Petioles 

 9 — 18" long. Corollas small, violet, pedicellate. Legume rhomboidal. Jl. Aug. 

 /?. divergcns. (L. divergens. Ph.) Pt;r/. filiform, divergent, much longer than 

 the leaves, mostly unfruitful ; leg. reticulate. — Leaflets ovate. 



6. L. sEssiLiFLORA. Michx. (L. violacea, p. T. 4« G.) 



St. erect, branching, puberulent ; If is. small, oblong-oval, obtuse, mucro- 

 nate, longer than the petioles ; fis. glomerate, on peduncles much shorter than 

 the leaves, those at the base apetalous and fertile ; lower segment of the calyx in 

 the complete flowers much longer than the others ; leg. orbicular-ovate, reticu- 

 lated, smooth, much longer than the calyx. — Woods, Can. ! to Flor., Ohio ! and 

 La. Stem rigid, slender, 1 — 2f high, with numerous, crowded, small leaves. 

 Leaflets rigid, 3^6 or 8" by 1 — 2". Flowers numerous, mostly apetalous. 

 Legume about 2'' diam. Aug. Sept. 



7. L. RETICULATA. PcTs. (li. violacca, y. T. ff* G.) 



St. erect, rigid, simple, glabrous; 2)€tinks nearly erect; Ifts. .sublinear, 

 Rtrigose-pubescent beneath, strongly reticulated and mucronate ; fs. fasciculate 

 on short, axillary peduncles ; segments of the caly.x of nearly equal length ; leg. 

 strongly reticulated, acute. — N.'j. ! to 111. ! and La. Stem 2f or more high, slen- 

 der, rarely branched. Leaflets 10 — 18" by Ih — 3", a little broadest in the mid- 

 dle, acute" at each end, upper ones smaller. Flowers all complete in some speci- 

 mens, all apetalous in others. Corolla violet. Legume \h" diam. Aug. 



8. L. Stuvei. Nutt. 



Erect, branched, tomontose-pubescent ; Ifts. oval or roimdish, longer than 

 the petiole ; rac. axillary, many-flowered, equaling or exceeding the leaves in 

 length; apetalo^is fls. few; leg. hairy, ovate, acuminate, longer than the subulate 

 calyx teeth. — Dry soils, N.Y. to La. A variable plant, 2 — 3f high. Leaves 

 always hairy beneath, generally so above. Corollas purple, much longer than 

 the calyx. Aug. Sept. 



29. GENISTA. 



Celtic §■£/?, Fr. genet ; a small shrub. 



Calyx with the upper lip 2-parted and the lower 3-toothed ; vexil- 

 lum oblong ; keel oblong, scarcely including the stamens and style ; 

 stigma involute ; stamens monadelphous. — Shrubby plants with sim- 

 ple leaves a7id yellow flowers. 



G. TiNCTORiA. Dyer's Droovi. Wood-icaxen. 



Branches round, striate, unarmed, erect; lis. lanceolate, smooth; leg. 

 smooth. — % A naturalized species, found occasionally in dry, hilly grounds. 

 Stems or branches numerous, ascending or erect, If high, from long, woody, creep- 

 ing roots. Leaves sessile, alternate. FloAvers brigiit yellow, axillary, sessile, 

 or nearlv so, solitary. The whole plant dyes )-ellow, and with woad, green. Aug. 

 30. CROTALARIA. 



Gr. KporaXov, a latfle ; from the rattling of the loose seeds in the pods. 



Calyx 5-cleft, somewhat bilabiate ; vexillum cordate, large ; keel acu- 

 minate ; sta. 10, monadelphous : filamentous sheath cleft on the upper 

 side ; legume pedicellate, turgid. — Herbs or shrubs. Lvs. often simple. 



C. SAOITTALI.S. RaUle-box. 



Plant erect, branching, hairy ; Irs. simple, lanceolate ; 5/?)). opposite, 

 acuminate, decurrent ; rac. 3-flowered, opposite to the leaves ; cor, shorter than 

 the calyx. — (J) Plant about a foot high, with a hairy aspect, and inflated pods, 

 in woods and sandy fields, N. H. to Ark. Stem herbaceous, rigid. Leaves al- 

 ternate, entire, nearly sessile, rounded at the base. The plant is best distin- 

 guished by its opposite, united, decurrent .stipules, .so situated that each pair ap- 

 pears inversely sagittate. Sepals long, hairy. Corolla small, yellow. Seeds 

 few, rattling in the turgid pod. Jl. 



