208 COMPOSITA. (COMPOSITE FAMILY.) 
3. B. asteroides, L’Her. Stem paniculate, the branches short ; leaves 
lanceolate, entire ; achenia smooth, narrow-margined ; pappus very short, with- 
out awns. — Swamps, North Carolina. Stem 29 -30 high. Heads intermediate 
in size between the two preceding. E 
20. SOLIDAGO, L. Gotpen-rop. 
Heads few or many-flowered. Rays 1 — 16, rarely wanting, pistillate. Disk- 
flowers tubular, perfect. Scales of the involucre imbricated, rarely with spread- 
ing tips. Receptacle flat, mostly alveolate. Achenia terete, many-ribbed. 
Pappus simple, of numerous scabrous mostly capillary bristles. — Perennial 
(rarely shrubby) erect plants, with alternate leaves, and small heads of yellow , 
flowers. 
$ 1. Curysastrum. — Scales of the involucre with herbaceous spreading tips? 
bristles of the pappus unequal, some of them thickened upward : racemes short, 
forming a long and narrow leafy panicle. e 
1. S. discoidea, Torr. & Gray. Pubescent or hairy; stem simple of 
branched ; leaves ovate, acute, abruptly narrowed into a petiole, the lower ones 
coarsely serrate ; racemes composed of 3— 6 large 10 - 15-flowered heads ; rays 
none; achenia smooth. (Aster? discoideus, Ell.) — Rich woods, Florida, Geor- 
gia, and westward. September. — Flowers yellowish-white. Stem e 5o high. 
2. S. squarrosa, Muhl. Stem stout, simple, pubescent above; leaves 
large, smoothish, oblong, acute, serrate, the lower ones tapering into a } 
winged petiole ; the upper sessile and entire ; racemes shorter than the Less 
composed of 3-6 clustered heads ; rays 12-16, showy ; achenia smooth. — 
Mountains of Georgia, and northward. September. — Stem 29 - 49 high. T : 
est leaves 6/-8' long. Heads 16 —24-flowered. i ees 
.$2. VrncavnEA. — Scales of the involucre appressed : rays mostly fewer than the 
= disk-flowers, rarely wanting: racemes racemose, corymbose, or panicled. 
: * Racemes not 1-sided ; leaves feather-veined. * no 
+ Racemes axillary, cluster-like, usually shorter than the leaves: the uppermost often 
crowded and racemose : leaves uniform, serrate. | 
3. S. pubens, M. A. Curtis. Stem simple, slender, pubescent ; leaves 
thin, oval-lanceolate, acuminate at each end, coarsely serrate, pubescent Je! : 
cemes dense, the upper ones racemose; heads 8—14-flowered ; rays 4-7; scales 
_ of the involucre obtuse, villous-pubescent; achenia hoary. — Upper and mout- 
tainous parts of North Carolina, Curtis, August. — Stem 2° — 3° high. Leaves 
.9' - 5! long. ; 
8 Buckleyi, Torr. & Gray. ‘Villons-pubescent ; leaves oblong, acute : 
at each end, coarsely serrate, smoother above; racemes loose, all separate aP" 
