COMPOSIT^E. (composite FAMILY.) 23.3 



* * * Rui/s 3 - 5-toolhed or lohcd. 

 ■»- Rays yellow : achenia orbicular, broadly wiiu/ed, warty, and xcith a tiiherrlp ot 

 each end on the inside, 2-toothed : scahs of the involucre nearly equal : hads 

 lonrj-peduncled. 



9. C. aurieulata, L. Stem erect, pubescent, commonly branched ; upper 

 leaves oblong or ovate-lanceolate, mostly entire, nearly sessile ; the lower peti- 

 oled, oval or roundish, entire, or with 2-4 small lateral lobes ; exterior scales 

 of the involucre lanceolate ; rays 4-tootbed. (C. pubescens, Ell ) — Rich shaded 

 soil, West Florida to the mountains of North Carolina. June -Sept. — Stem 

 l°-4°high. Leaves l'-4' long, variously divided on the same plant. Kays 

 showy. 



10. C. grandiflora, Xutt. Stem slender, smooth, ascending; leaves elon- 

 gated; the lowest linear-spatulatc, on long ciliate petioles ; the upper ternatcly 

 or 1 - 2-pinnately parted, the divisions linear ; exterior scales of the involucre 

 ovate-lanceolate ; rays large, 4 - 5-toothcd. — Dry soil, Florida and Georgia, and 

 westward. April -June. — Stem 8' - 12' jiigli. 



11. C. lanceolata, L. Smoothish ; stem short, ascending; leaves undi- 

 vided, thick; the lowest spatulate-oblong on long ciliate petioles; the upper 

 lanceolate sessile ; exterior scales of the involucre ovate-lanceolate ; rays large, 

 strongly 4 -5-toothcd. (C. crassifolia. Ait., stem and leaves hairy or woolly.) — 

 Dry rich soil, Florida to North Carolina. May and June. — Stem 6'- 12' long. 



■*- -1- Baijs yellow : achenia nearly straight, oblong, 2-awned, the marcjins with a 

 serrulate or pectinate winy (except No. 12) : exterior scales of the involucre shorter 

 than the interior : disk dark purjile. 



12. C. Leavenworthii, Ton-. & Gray. Smooth ; stem dichotomous 

 above ; leaves opposite, linear, entire, or with two lateral lobes ; rays 3-toothcd ; 

 achenia Avith a broad whitish entire wing, conspicuously 2-toothcd. — Tampa 

 Bay, East Florida. — Stem slender, l°-2°high. Lower leaves 3' -4' long, 

 1 " wide. Rays 5'' - 6" long. 



13. C. gladiata, Walt. Smooth ; s;cm terete, naked above, simple, or 

 with Lw peduncle-like branches ; leaves fleshy, alternate, entire, or rarely 3-lohcd ; 

 the lowest ones spatulate-oblong, on long petioles ; the upper small, linear ; 

 heads large ; exterior scales of the involucre small and roundish ; rays showy, 

 4-toothed ; wings of the achenia pcctinately toothed. — Low pine barren*, Flor- 

 ida to North Carolina, and westward. Sept. and Oct. — Stem 2° -3° high. 

 Lowest leaves 8' -10' long. Rays wedge-shaped, 1' long. « 



14. C. angustifolia, Ait. Smooth ; stem slender, 4-anglcd, dichoto- 

 mously branched al)ovc ; leaves opposite or alternate, linear, obtuse, entire ; tlie 

 lowest ones spatulate-lanceolate ; heads small, corymbose ; rays 3-toothed ; wings 

 of the achenia pectinately toothed. — Pine-barren swamps, Florida to North 

 Carolina, and westward. Sept. and Oct. — Stem 2° -3° high. Leaves some- 

 what fleshy. Rtys |-' long. 



15. C. integrifolia, Poir. Smooth ; stem terete, corj-mbosely branched 

 above ; leaves opposite, petioled, entire, ovate or oblong, obtuse, the margins 

 scarious and rougliish ; heads few, on long peduncles ; exterior scales of the 



