

ORDER LXYIII. COMPOSITE. 373 



10. Seed glabrous.— Yellow, y. Sept.— Oct. Middle Geo. 4—6 

 feet. 



25. S. sempervi kens, (L.) Stem erect, glabrous, with recurved 

 branches toward the summit. Leaves linear-lanceolate, long, acute, 

 scabrous along the margin, entire. Flowers in axillary racemes, small ; 

 involucre with linear-lanceolate scales; ray florets generally 5. — Yel- 

 low. 11. Sept. — Oct In rich soils. Common. 3 — 6 feet. 



a. Racemes erect. 



26. S. limonifo'lia, (Pers.) Stem oblique, glabrous, usually colored. 

 Leaves sessile, lanceolate, somewhat fleshy, entire, glabrous. Flowers 

 in erect, paniculate racemes ; involucre with linear, acute scales ; ray 

 florets 7 — 10. Seed pubescent. — Yellow. If. Aug. — Oct. On the 

 sea- coast. 3 — 5 feet. 



27. S. amplexicau lis. (Mar.) Stem velvety pubescent, loosely branch- 

 ed. Leaves ovate or oblong, serrate ; lower ones acuminate, clasping 

 the stem, pubescent beneath ; upper ones ovate-lanceolate. Heads 

 small, in paniculate, secund racemes ; ray florets 1 — 2 ; disk 5 — 8. 

 Ac/ienia pubescent. — Florida, 2 — 4 feet. 



28. S. BRACHYniYLLA, (Chap.) Stem scabrous, pubescent, leafy. 

 Leaves spatulate, oval, or ovate, glabrous; lower ones serrate. Branches 

 in virgate panicles. Heads racemose, secund ; ray florets none ; disk 5 

 — 6. Achenia canescent. — Geo. and Flor. 4 — 6 feet 



29. S. specio'sa, (Xutt.) Stem erect, slightly furrowed, glabrous, 

 with virgate branches, pubescent when young. Leaves broad lanceo- 

 late, coriaceous ; upper ones entire, the lower slightly serrate. Flow- 

 ers in numerous erect racemes; involucre with oblong, obtuse scales; 

 ray florets 5. Seed glabrous. — Yellow. If. Sept. — Oct. Middle 

 Geo. 3—8 feet. 



30. S. pubes'cens (E1L) Stem erect, pubescent, with numerous erect 

 branches. Leaves long, lanceolate ; the upper ones generally entire, 

 pubescent ; the lower serrate, slightly scabrous, spatulate. Flowers in 

 paniculate racemes; involucre with pubescent, subulate scales; ray 

 florets 7 — 10. Seeds pubescent. — Yellow. If. Oct. Damp soils. 

 Middle Geo. 3—5 feet. S. puberula, Nutt. 



31. S. paccjflosctlo'sa, (Mich.) Stem erect, somewhat shrubby, gla- 

 brous. Leaves lanceolate, obtuse. Flowers in compound panicles ; in- 

 volucre oblong, 5-flowered ; ray floret 1. — Yellow. If. Aug. — Oct. 

 In pine-barrens, on the coast. 



32. S. bico'lor, (L.) Stem erect, pubescent. Leaves oblong-lanceo- 

 late ; the lower ones serrate, attenuate at the base, pubescent. Flow- 

 ers in compact racemes; involucre with obtuse, linear-lanceolate scales ; 

 rav florets 5 — 8. — Xearly white. 2£. Sept. — Oct. Dry pastures. 2 

 —3 feet. 



33. S. petiola'rjs, (Ait.) Stem erect, striate, villous. Leaves oval- 

 lanceolate, pubescent ; upper ones nearly sessile ; the lower attenuate, 

 with a sheath-like petiole, serrate. Flowers in long, terminal racemes ; 

 involucre with oblong, pubescent scales ; ray florets 6 — 8. Seed gla- 

 brous. — Yellow. If. Aug. — Sept Mountains. 2 — 3 feet. 



:^4. S. stric'ta, (Ait.) Stem erect glabrous. Leaves lanceolate, en- 

 tire, glabrous, with scabrous margins; radical ones serrate. Fluwersm 



