COMPOSITE. (COMPOSITE FAMILY.) 229 



obtuse, minutely granular; acheuia hairy. Mountains of North Carolina. 

 >'ept. Stem 3 high. Leaves 4' - 5' long. Heads large. 



>- *- Racemes crowded in racemose or pyramidal terminal panicles, longer tlmn 

 the leaves (except No. 15): lowest leaces large, commonly tapering into a 

 jietlole, t/ie 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 1- 2 high. Radical leaves 2' - 5' long. 



Var. concolor, 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 about 

 10; scales of the involucre subulate ; acheuia smoothish. (S. pubesceus, Ell.) 

 Dry sandy soil, in the upper districts. Sept. 



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

 scales of the (20 - 25-nowered) involucre linear-lanceolate; acheuia smooth. 

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

 Sept. -Oct. Stem 2 -4 high, often purplish. Lowest leaves 2' -4' long. 

 Flowers middle-sized, hright 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, showy; 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 hi eh. Leaves 1' - 2' louff. 



'6' 



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

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

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

 crowded, 1 5 - 20-flowered ; 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 panic-led above; leaves thin, roughish, 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 pubescent. Pine barrens, near Wilmington, 

 North Carolina. (Curtis). May- June. Stem ,2 -3 high. Lowest leaves 

 3' -5' long. 



