COMPOSITE. (COMPOSITE FAMILY.) 205 



# # # Rays 3 - 5-toothed or lobed. 

 ■*- Rays yellow : aclienia orbicular, broadly winged, warty, and with a tubercle at 

 each end on the inside, 2-toothed: scales of the involucre nearly equal : heads 

 tong-pedunded. 



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

 Leaves oblong or ovate-lanceolate, mostly entire, nearly sessile ; tbc lower peti- 

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

 of tbe involucre lanceolate; rays 4-tootbed. (C. pubeseens, EH.) — Rich shaded 

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

 1° -4° high. Leaves l'-4' long, variously divided on tbe same plant. Rays 

 showy. 



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

 gated ; tbc lowest linear-spatulate, on long ciliate petioles ; tbe upper temately 

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

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

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



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

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

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

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

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



■*- ■■■- Rays yellow : aclienia nearly straight, oblong, 2-awned, the margins with a 

 serrulate or pectinate icing (except Xo. 12) : exterior scales of the involucre shorter 

 than the interior : disk dark purple. 



12. C. Leavenworthii, Torr. & Gray. Smooth; stem dicbotomou.s 

 above ; leaves opposite, linear, entire, or witli two lateral lobes ; rays 3-tootbed ; 

 aclienia with a broad whitish entire wing, conspicuously 2-toothed. — Tampa 

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

 1" wide. Kays 3''-G" long. 



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

 with few peduncle-like brandies ; leaves fleshy, alternate, entire, or rarely 3-lobed ; 

 tbe 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 tbe achenia pectinately toothed. — Low pine barrens, Flor- 

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

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



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

 mously branched above ; leaves opposite or alternate, linear, obtuse, entire ; the 

 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. RayB },' long. 



15. C. integrifolia, Poir. Smooth; stem terete, corymbosely branched 



leaves opposite, petioled, entire, ovate or oblong, obtuse, the mar-ins 



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



