216 COMPOSITE. (COMPOSITE FAMILY.) 
Biennial or perennial hairy or silky herbs, with linear or oblong mostly entire 
leaves. Heads mostly corymbed. Flowers yellow. i 
* Leaves narrow, nerved, entire: achenia oblong-linear, narrowed at each end, pubes- 
: cent : perennials, t 
1. C. graminifolia, Nutt. Stem leafy, white with appressed silky shin- 
ing hairs, as also the linear leaves; heads numerous, rather small, on slender and 
more or less glandular peduncles ; involucre top-shaped, the linear scales glan- 
dular. (C. argentea, Nutt.) — Sandy pine barrens, common. Sept. — Stem 
19-29 high. Lowest leaves 4'— 8' long. : : 
2. C. oligantha, Chapm. Stem nearly naked and glandular above, the 
lower part, like the linear or lanceolate leaves, silky with appressed shining 
hairs; heads 1-4, on long erect glandular peduncles, rather large; involuere 
bell-shaped, the scales glandular-pubescent. — Low pine-barrens, Florida. April 
and May.— Stem 1° high. Stem-leaves clasping ; those of the root elon- 
gated. LÀ 
3. C. pinifolia, Ell. Smooth; stem rigid ; leaves linear, crowded, rigid; 
corymb large; scales of the involucre woolly at the summit. — High sand-hills ; 
in the Western districts of Georgia, Elliott. — Stem 1j?-29 high. Stem-leaves 
4'-6' long, the uppermost filiform. Heads large. Exterior pappus somewhat 
chaffy. oe 
* * Leaves veiny, oblong or lanceolate; the lowest narrowed at the base, the upper 
sessile: achenia obovate, compressed. ; 
4. C. Mariana, Nutt. Perennial; stem simple, covered with loose silky 
deciduous hairs ; lowest leaves spatulate-oblong, entire or slightly serrate ; the 
upper ones lanceolate, sessile, entire ; corymb small, mostly simple and umbel- 
late, cone-like in the bud; peduncles and involucre glandular. — Sandy pine- 
barrens, Florida, and northward. Sept. — Stem 1° - 2° high. 
5. C. trichophylla, Nutt. Biennial; stem very leafy, mostly branching; 
` villous with loose silky hairs; leaves oblong or lanceolate, the earliest ones 
crowded, obtuse and densely villous, the upper mostly acute and often smooth- 
ish; corymb large, compound ; peduncles and involucre smoothish. — Var. BYS- 
SOPIFOLIA (C. hyssopifolia, Nutt.) has narrow-linear and smooth leaves, except A 
the tuft at the base. — Dry pine barrens, Florida to North Carolina. Sept— 
Stem 2°- 3° high, commonly ascending. Leaves 1'- 2! long. 
6. C. gossypina, Nutt. Biennial, densely villous and hoary throughout ; 
leaves oblong, obtuse, entire ; the lowest spatulate, the upper sessile; corymb 
