CLASSES, &c. AND GENERA ARRANGED, cxxvii 



Chrysa'nthemum, Ox-eye. Cal. hemispheric, tiled ; scales with a 

 dilated, membranaceous border. Recept. naked, somewhat con- 

 vex. Seed'down none. — Page 2Ao. 

 Py'rethrum, Feverfew. Cal. hemispheric, tiled ; scales somewhat 

 acute, with membranaceous margins. Recept. naked. Seed 

 crowned with a border. — Page 245. 

 'Inula, Elecampane, and Flea-bane. Cal. tiled. Fl. of the ray 

 very numerous, linear, Anth. two-bristled at the base. Recept. 

 naked. Seed-down simple. — Page 243. 

 Eri'geron, Fleabane Erigeron. Cal. tiled. Fl. of the ray many, 

 linear, (very narrow.) Stam.-anth. simple. Recept. naked. 

 Seed-down simple. — Page 238. 

 Solida'go, Golden-rod. Cal. with close scales, tiled. Fl. of the 

 ray, about five ; (yellow.) Recept. naked, pitted. Seed-down 

 simple, stalkless. — Page 242. 

 Sene'cio, Groundsel, or Ragivort. Cal. double ; the inner one 

 cylindric ; scales numerous, equal, outer calyx of smaller scales 

 at the base, all withered, or brown at the end. Recept. naked. 

 Seed-down simple. — Page 240. 

 Tussila'go, Coif s -foot ; and Butter-bur. Cal. simple, swollen at 

 the base ; scales many, equal, somewhat membranaceous. 

 Recept. naked. Seed-down simple. Seed inversely egg-shaped, 

 compressed. — Page 239. 

 Cinera'rta, Flea-wort. Cal. simple, cylindric ; scales many, equal, 

 upright. Recept. naked. Seed-down simple. Seed four-cor- 

 nered. {Fl. yellow.) — Page 244. 

 'Anthemis, Chamomile. Cal. hemispheric ; scales nearly equal. 

 Fl. of the ray oblong. Recept. chaffy, convex. Seed crowned 

 with a slight border. — Page 247. 

 Achille'a,' Yarrow. Cal. egg-shaped ; scales, tiled, unequal. Fl. 

 of the ray from five to ten, roundish, somewhat inversely heart- 

 shaped. Recept. chaffy. Seed-down none. — Page 248. 

 Bidens cernua, occasionally rayed. See tlie Genus. 



Order III. POLYGAMIA FRUSTRANEA. Florets of the 

 centre (disk) perfect, and seed-bearing ; those of the circumfe- 

 rence barren, (neuter.) N. O. Part of Juss. Cinarocephalae. 



Centaure'a, i^??a/)«'eeo?/ Blue-bottle; and Star-thistle. Co/, tiled. 

 Fl. of the ray, (without stamens, or style,) funnel-shaped, irre- 



' Pronounce kilUa. 



