COMPOSITE. 212 



3. S. e'LEGANS. — Leaves pilose, viscid, pinnatifid, equal, spreading; 

 comvion petiole narrowed below. Native of the Cape of Good Hope. Lin- 

 nseus gave to tliis annual tlie name of clcgans on account of the beauty of its 

 flowers, their rays being of the most brilliant purple and the disk yellow. A 

 variety is cultivated in gardens and tlie green house with double flowers, of 

 colors equally brilliant. Another double variety has white flowers. June — 

 Aucr. Purple Jacohiea. 



Section III. Heads discoid. 



39. ERE'CHTITES. 

 Flowers all tubular, those of the margin pistillate, of the 

 disk perfect; involucre cylindrical, simple, slightly calyculate; 

 receptacle naked ; pappus of numerous fine, capillary bristles. 



Gr. igi%&a), to trouble ; the species are troublesome weeds. Marginal 

 corollas very slender, 2 — 3-toothed. Branches of the style tipped with a 

 pubescent cone. Ach. striate. Annual herbs, with simple, alternate leaves 

 and corymbs of whitish flowers. 



E. HIERACTFo'LIUS. Kfl/. Senicio hieracifolius., L. 



Stem paniculate, virgate ; leaves oblong, amplexicaul, acute, unequally and 

 deeply toothed with acute indentures; involucre smooth; uclienia hairy. A 

 well known, rank weed, growing in fields, particularly and abundantly in 

 such as have been newly cleared and burnt over, and hence it is called fire- 

 weed. Stem thick and fleshy, branching, 3 feet high, roughish. Leaves of 

 a liglit green, large, irregulaily cut into many deep and acute teeth. Flowers 

 terminal, crowded, destitute of rays, white. Involucre large and tumid at 

 base. Aug. Sept. Ann. Fire-weed. 



40. CACA'LIA, 

 Flowers all perfect; involucre cylindric, oblong, often 

 calyculate with small scales at the base; receptacle not 

 chaify ; pappus capillary, scabrous. 



An ancient Greek name of an uncertain plant. Smooth, perennial herbs 

 Lvs. alternate. Hds. of fls. corymbose, cyanic. 



1. C. suave'olens. 



Glabrous; s<cto striate-angular ; Zcreucs petiolate, hastate-sagittate, serrate, 

 smooth.green on both sides; ;7()j/;erscorymbed, erect; aaWutve many-flowered. 

 Western N. Y. Stems 4—5 feet high, striate, leafy. Radical leaves on long 

 stalks, pointed ; cauline ones on winged stalks. Flowers whitish, in a 

 terminal, compound corymb. Scales and peduncles, smooth,^ with setaceous 

 ■bracts beneath the involucre, and beneath the divisions of the peduncles. 

 Autr. Per. Wild Curuioay. 



2. C. atriplicifo'lia. 



Si^w herbaceous ; leaves petiolate, smooth, glaucous beneath, radical ones 

 cordate, dentate, cauline ones rhomboid, sub-bidentate on each side ; floircrs 

 corymlK'd, erect ; involucre .j-flovvered. N. Y. Stem 3 — 5 feet high, round, 

 leafy, subramose. Leaves alternate, the lower ones as large as the hand, with 

 larire, unequal teeth. Headsof flowers small, ovoid-cylindric, whitish, loosely 

 corymbose at the tops of the branches. Jl. — Sept. Oruche-lcaved Curuwaij. 



3. C. COCCI'NEA. — R'lilical leaves ovate, spathulate; cnnJine ovcs cni'ire, 

 amplexicaul, crenate. A pretty e.\otic garden plant, a foot or more high, 



