COMPOSIT.*;. (composite family.) 229 



obtuse, minutel}^ granular; aclienia hairy. — Mountains of North Carolina. 

 Sept. — Stem 3"^ high. Leaves 4' - 5' long. Heads large. 



t- •*- Racemes crowded in racemose or pyramidal terminal panicles, longer than 

 the leaves {except No. 15) : lowest leaves larcje, commonlij tapering into a 

 petiole, the uppermost small, sessile and entire. 



10. S. bicolor, L. Pubescent; stem simple, or branching above ; lowest 

 leaves spatulate-oblong, serrate ; the upper lanceolate ; panicle racemose, the 

 lowest racemes shorter than the leaves ; heads about 20-flowered ; rays 7-9, 

 short, whitish ; scales of the involucre obtuse. — Dry soil in the upper districts, 

 and northward. Sept. — Stem l°-2° high. Eadical leaves 2'- 5' long. 



Var. eoncolor, Torr. & Gray. Mostly taller (2°-4°), and branching, 

 hirsute ; leaves broader ; rays yellow. — Mountains of Georgia and Ten- 

 nessee. 



11. S. puberula, Nutt. Minutely pubescent; stem simple, virgate; 

 lowest leaves spatulate-oblong, serrate above the middle ; the upper lanceolate ; 

 panicle dense, racemose or pyramidal ; heads about 30-flowered ; rays al)out 

 10; scales of the involucre subulate ; achenia smoothish. (S. pubesceus, .£^//.) 

 — Dry sandy soil, in tlie upper districts. Sept. 



Var. pulverulenta, Chapm. Upper leaves shorter, obloug-obovate ; 

 scales of tlie (20-25-flowered) involucre linear-lanceolate; achenia smooth. 

 (S. pulverulenta, Nntt.) — Damp pine barrens, Florida to North Carolina. 

 Sept. -Oct. — Stem 2° -4° higli, often purplish. Lowest leaves 2' -4' long. 

 Flowers middle-sized, bright yellow. 



12. S. petiolaris, Ait. Minutely pubescent; stem mostly simple, 

 straight, very leafy ; leaves oblong-lanceolate or elliptical, acute, rough on 

 the margins, all but the lowest entire, and nearly sessile ; panicle racemose 

 or oblong; heads large, 20-25-flowered ; rays about 10, showj^; scales of the 

 involucre linear, pubescent ; the outer ones more or less spreading ; achenia 

 smoothish. — Dry sandy soil, Florida to North Carolina. Sept. — Stem 2° - 

 3° high. Leaves l'-2' long. 



13. S. speciosa, Nutt. Stem stout, mostly simple, smooth below, pubes- 

 cent above; leaves smooth, the lowest large (5' -8' long, 1 -J' -2' wide), serrate; 

 the upper ones lanceolate ; panicle compact, pyramidal ; heads rather large, 

 crowded, 1 5 - 20-tlowered ; rays 6-8, showy; scales of the involucre lanceo- 

 late, obtuse ; achenia smooth. — Varies, with the stem and lower surface of 

 the broader (2' - 3') leaves villous ; the fewer, larger, and more scattered heads 

 about 30-flowered ; or every way smaller ; the short racemes forming a narrow 

 racemose panicle. — Dry soil ; the first variety in the upper districts. Sept. - 

 Oct. — Stem 3°- 5° high, often purplish. 



14. S. verna, Curtis. Closely pubescent and somewhat hoary; stem 

 .simple or panicled above ; leaves thin, roughi.sh, the lowest oblong, abruptly 

 narrowed into a long and slender petiole, the upper ones sessile and entire ; 

 racemes very slender, .spreading, forming an open somewhat corymbose pan- 

 icle ; heads rather large, scattered, about 30-flowered ; rays narrow ; scales of 

 the involucre linear ; achenia puliescent. — Pine barrens, near Wilmington, 

 North Carolina (Cwrt/s). May -June. — Stem 2° -3'^ high. Lowest leaves 

 3' - 5' long. 



