178 DICOTYLEDONOUS. 



summit. Leaves sessile, the lower ones oblong-lanceolate, serrulate, with a 

 few hairs along the veins, the upper ones entire, ovate-lanceolate, with seve- 

 ral small leaves in the axils. Flowers in a terminal panicle ; racemes recurv- 

 ed, secund ; involucre with linear scales ; ray florets small. 

 Yellow %-. September — Oct. Common. 3-5 feet. 



9. S. Nemoralis. ^tem erect, tomentose, sparingly branched. Leaves 

 lanceolate, alternate at the base of the stem, slightly hispid, with axillary clus- 

 ters of small leaves, those of the root serrate, somewhat cuneate. Flowers in 

 paniculate racemes, secund ; involucre with linear-lanceolate scales, pubes- 

 cent along the margins. 



Yellow. %. Sept. — Oct. In dry soils, common. 2-3 feet. 



10. S. Ulmifolia. ^tem erect, villous when young, tomentose, striate, 

 with numerous recurved branches ; cauhne leaves oblong-lanceolate, serrate, 

 acute, scabrous on the upper surface, hairy beneath. Flowers in paniculate 

 racemes ; racemes secund and recurved ; involucre with narrow, oblong 

 scales ; ray florets short. SeeJ pubescent. 



Yellow. 1\. Sept. — Oct. In rich soils. 



11. S. Arguta. Sfem erect, glabrous, striate, \vith long virgate branches. 

 Radicle leaves spatulate, acutely serrate, with a long attenuated base ; cau- 

 hne leaves eliptic, serrate, those of the branches entire, 3-nerved. Flowers 

 in long panicalate racemes; involucre with linear-lanceolate scales. 



Yellow. %-. September. Shaded soils. 



12. S. Ci>'ERASCENS. S^em erect, pubescent, slender, with numerous slen- 

 der expanding branches towards the summit. Leaves long linear-lanceolate ; 

 radicle ones, with a long tapering base, slightly serrate ; cauhne ones, small, 

 and scattered towards the summit. Flowers in paniculate racemes, racemes 

 secund, with the pedicels often 3-flowered. 



Yellow. %. September — October Middle Georgia. 



13. S. .luA'CEA. ^tem erect, slender, glabrous, branches pubescent when 

 young. Leaver long-lanceolate, glabrous, with scabrous margins the lower 

 ones serrate, obscurely 3-veined. Flowers inloo^e terminal, paniculate ra- 

 cemes ; racemes secund, recurved ; involucre with oval, slightly pubescent 

 scales. 



Yellow. %. Sept. — Oct. Upper districts of Carohna, Georgia. 



14. S. Elliptica. Siem erect, glabrous, with numerous recurved, branch- 

 es towards the summit. Leaves oval-lanceolate, or elliptic, serrate, glabrous, 

 with scabrous margins, Flou-ers in paniculate racemes ; racemes secund, 

 expanding, leafy, involucre, with acute linear-scales, glabrous. 



Yellow. %-. Sept. — Oct. In rich soils. Low country. 



15. S. Odora. S/em erect, pubescent towards the summit, branching. — 

 ieares sessile, linear-lanceolate, glabrous, entire, with scabrous margins. — 

 Flowers in paniculate racemes ; racemes recurved, involucre, with Hnear-lan- 

 ceolate scales. 



Yellow. %.. September — October. Mountains. 



16. S. Retrorsa. S^em erect, glabrous or pubescent towards the sum- 

 mit. Leaves linear, sessile, tapering at the summit, glabrous, 'reflexed, sca- 

 brous along the margin. Flowers in paniculate racemes ; racemes recurved ; 

 involucre with ciliate, lanceolate scales, ray florets 3, of the disk 3-4. 



Yellow. %. August — October. Very Common. 



17. S- ToRTiFOLiA. S'em erect, pubescent towards the summit. Leaves 

 linear-lancc ! le, slightly serrate, obscurely 3-yeined, usually twisted. Flow- 

 ers in comjj;.ct paniculate racemes recurved ; involucre, with linear-lanceo- 

 late scales, ray florets 3-5. 



Yellow. %. August — October. Very Common. 2-3 feet. 



18. S. Pyramidata. ' S^f m erect, terete, hispid. Leaves oblong, ovate, mar- 

 gin serrulate, scabrous, somewhat amplexicaule, midrib pubescent. Flowers 

 m paniculate filiform racemes ; racemes secund, recurved, pubescent. Corolla 

 emaU, Uirulate. miniUe. Seed smooth. 



Yellow. %. August— September. Pine barrens. 4-6 feet. 



