208 coMPOsiT.K. (composite family.) 



3. B. asteroid.es, L'llcr. Stem paniculate, the brandies short ; leaves 

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

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

 in size between the two preceding. 



20. SOLIDAGO, L. GoLDEx-noD. 



Heads few or many-flowered. Rays 1-lG, rarely wanting, pistillate. Disk- 

 flowers tubular, perfect. Scales of the involucre imbricated, rarely witli spread- 

 ing tips. Keceptacic flat, mostly alveolate. Achcnia terete, many-ribbed. 

 Pappus simple, of numerous scabrous mostly capillary bristles. — rerennial 

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

 flowers. 



^ 1. CiiRYSASTRUM. — Scales of the involucre with herbaceous aprccidirig tips : 

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

 forming a lou(j and narrow leafy panicle. 



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

 branched ; leaves ovate, acute, abruptly nan'owed into a petiole, the lower ones 

 coarsely serrate ; racemes comjjosed of 3 - 6 large 10 - 15-liowere(l heads ; rays 

 none ; achenia smooth. (Aster ? discoideus, A7/. ) — Rich woods, Florida, Geor- 

 gia, and westward. September. — Flowers yellowish-white. Stem 3° - 5° high. 



2. S. squarrosa, Muid. Stem stout, simple, pubescent above ; leaves 

 large, smootliish, 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-G clustered heads; rays 12-16, showy; achenia smooth. — 

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

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



§2. ViRGAUREA. — Scales.oJ' the involucre oppressed : rai/s most^ij fowcr than the 



dislc-Jlowers, rarelj wanting : racemes racemose, corjmbose, or paniclcd. 



* Racemes not l-sided ; leaves foather-veined. 



•>- Racemes axillary, cluster-like, usually shorter tha7i the leaves : the uppermost often 



crowded and racemose : leaves uniform, senate. 



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 ol)tuse, villous-jjubescent ; achenia lioary. — Upjier and moun- 

 tainous parts of Nortii Carolina, Curtis. August. — Stem 2° - 3° high. Leaves 

 3' -5' long. 



4. S. Bucklcyi, Torr. & Gray. Vilious-pul)escont ; leaves oblong, ocuto 

 at each end, coarsely serrate, smoother above ; racemes loose, all sejiaratc and 

 much shorter tiian the leaves; heads l.") - 20-flowcred ; rays 4-6; scales of the 

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

 Alabama, Il'irklri/. October — Stem 2° high. Leaves 3' long. 



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

 acuminate, abruptly contracted at the base, unccjually toothed-serrate, mostly 



