210 COMPOSITZ. (COMPOSITE FAMILY.) 
Var. pulverulenta. Upper leaves shorter, oblong-obovate ; scales of the 
(20 -25-flowered) involucre linear-lanceolate ; achenia smooth. (S. pulveru- 
lenta, Nutt.) — Damp pine barrens, Florida to North Carolina. Sept. and Oct. 
— Stem 2° - 4° high, often purplish. Lowest leaves 2'-4'long. Flowers middle- 
sized, bright yellow. 
12. S. petiolaris, Ait. Minutely pubescént ; 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 ; acheniasmoothish. (S. elata? — 
Ell ) — Dry sandy soil, Florida to North Carolina. Sept. — Stem 29-39 high. 
Leaves 1'— 2! long. 
13. S. speciosa, Nutt. Stem stout, mostly simple,smooth below, pubes- — 
cent above ; leaves smooth, the lowest large (5^— 8' long, 11! — 2/ wide), serrate; 
the upper ones lanceolate; panicle compact, pyramidal; heads rather large, 
crowded, 15 - 20-flowered; rays 6 - 8, showy; scales of the involucre lanceolate, 
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 (S. petiolaris, Æl. ?); or every way smaller; the short racemes 
forming a narrow racemose panicle (S. erecta, Ell.). — Dry soil, Florida to Mis- 
sissippi, and northward ; the first variety only in the upper districts. Sept and 
Oct. — Stem 3° - 59 high, often purplish. 
14. S. verna, Curtis. Closely pubescent and somewhat hoary; stem sim- 
ple, or panicled above; leaves thin, roughish, the lowest oblong, abruptly nat- 
rowed into a long and slender petiole, the upper ones sessile and entire; racemes 
very slender, spreading, forming an open somewhat corymbose panicle; heads 
rather large, scattered, about 30-flowered ; rays narrow ; scales of the involucre 
linear; achenia pubescent. — Pine barrens, near Wilmington, North Carolina, 
Curtis. May and June. — Stem 2°- 39 high. Lowest leaves s 5! long. 
15. S. glomerata, Michx. Smooth; stem stout, simple; leaves large, 
oblong-lanceolate, acuminate at each end, sharply serrate, the lowest tapering 
into a petiole; racemes cluster-like, much shorter than the leaves; the uppe" 
ones approximate and racemose ; heads very large, 30 — 40-flowered ; rays 10- 
12; scales of the involucre acute, smooth ; achenia pubescent. — High moun- 
tains of North Carolina. Sept.— Stem 19 -29 high. Leaves 4! — 9! TE 
+ + + Racemes corymbose. ’ 
16. S. rigida, L. Rough-pubescent and somewhat hoary ; stem “stont; 
leaves rigid, oval or oblong, serrate, sessile ; the lowest narrowed into a petiole i 
corymb compact ; heads very large, 30~35-flowered ; rays 7 — 10 ; scales of the 
involuere oblong, obtuse ; achenia smooth. — Motihiteiuy of Georgia i 
ward. Sept.— Stem 39— 49 high. Lowest leaves 6/ — 9/ long. 
17. S. corymbosa, Ell Stem erect, smooth ; dieron 
lower leaves oblong-lanceolate, the upper ovate all fleshy, rigid, smooth, but - 
very rough and fringed along the margin ; ‘racemes corymbose, the lower 7 
cel ny on gainers om enee 
