208 COMPOSITJE. (composite family.) 



3. B. asteroides, L'Her. Stem panicnlate, the branches short ; leaves 

 lanceolate, entire ; achenia smooth, narrow-margined ; pappus very short, with- 

 out awns. — Swamps, North Carolina. Stem 2° -3° high. Heads intermediate 

 iu size between the two preceding. 



20. SOLIDAGO, L. Golden-rod. 



Heads few Off 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 Minnie, of numerous scabrous mostly capillary bristles. — Perennial 



(rarely shrubby) erect plants, with alternate leaves, and small heads of yellow 

 flowers. 



$ 1. Chkysastkum. — Scales of the involucre with herbaceous spreading tips: 

 bristles of the pappus unequal, some of them thickened upward : racenus short, 

 forming a long mid narrow leafy panicle. 



1. S. discoidea, Torr. & Gray. Pubescent or hairy; stem simple or 

 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 3°-5°high, 



2. S. Squarrosa, Muhl. Stem stout, simple, pubescent above ; leaves 

 large, smoothish, oblong, acute, serrate, the lower ones tapering into a long 

 winged petiole ; the upper sessile and entire; racemes shorter than the leaves, 

 composed of 3-6 clustered heads ; rays 12-16, showy; achenia smooth. — 

 Mountains of Georgia, and northward. September. — Stem 2°-4° high. Low - 

 est leaves 6'- 8' long. Heads 16-24-flowered. 



§2. Virgaurea. — Scales of the involucre oppressed : rays mostly fewer than the 



disl-Jlowers, rarely wanting: racemes racemose, corymbose, orpanicled. 



* Racemes not 1-sided ; leaves feather-veined. 



•*- Racemes axillary, cluster-like, usually shorter than tin bares: the uppermost <;/'/"/ 



crowded and racemose : leaves uniform, sen-ate. 



3. S. pubens, M. A. Curtis. Stem simple, slender, pubescent ; leaves 

 thin, oval-lanceolate, acuminate at each end, coarsely serrate, pubescent; ra- 

 cemes dense, the upper ones racemose; heads 8-14-flowered ; rays 4-7; scales 

 of the involucre obtuse, villons-pnbescent; achenia hoary. — (Jpper and moun- 

 tainous parts of North Carolina, Curtis. August. — Stem 2° - 3° high. Leave, 

 3' -5' Ion-. 



4. S. Bucklcyi, Ton-. & Gray. Villons-pnbescent ; leaves oblong, acute 

 at each end, coarsely serrate, smoother above-, racemes loose, all separate and 



much shorter than the leaves; heads 15- 20 flowered ; ray- 4-6 ; scales of the 

 involucre rather acute, nearly smooth ; achenia short and smooth. — Interior 01 



Alabama, Buckley. October — Stem 2° high. Leaves 't' long. 



5. S. latifolia, L. Stem smooth, simple, angled; leaves oval or ovate, 



acuminate, abruptly contracted at the base, unequally toothed sea-rate, mostly 



