248 coMrosiTE family. 



C. Drummdndii, Torr. & Gray. Low and spreading, rather hairy, with 

 leaves of ;^-7 oval leatiets, or some of them simple ; heads on long pedun- 

 cles ; very broad rays golden-yellow, with small dark spot at base, Tex. 

 Common in gardens. 



* * ® Disk floicers yelloio; rays yellow, with a darker and j)?/)7)/ks/i- 



streaked spot near the base ; akenes icinged and 2-tuothed. 



C. coronata, Hook. Low, with slender-petioled leaves — oblong or spatu- 

 late, or some of them 3-5-parted — and very long peduncle ; rays broad 

 and handsome. Tex. Cult. 



* * * 2Z Disk flowers and rays (1' long) entirely yellow ; akenes orbicu- 

 lar, mnch incurved and broadly loinged when ripe, croioned with 2 little 

 teeth or scales. 



C. lanceolata, Linn. Wild W. and S., and cult. ; l°-2° high, smooth 

 or sometimes downy, in tufts, with lanceolate or oblanceolate entire leaves, 

 mostly crowded at the base, and long slender peduncles ; flowers in early 

 summer. 



C. auriculata, Linn. Wild W. and S., and in some gardens ; taller, 

 sometimes with runners or suckers at base, leafy to near the top ; upper 

 leaves oblong, lower roundish and sometimes auricled at base or with o-5 

 lobes or leatiets. 



§ 2. Bays entire or nearly so, oblong or lanceolate ; akenes oblong, with 

 a very narrow wing or border, not incurved, and obscurely if at all 2- 

 toothed at the apex; scales of outer involucre narrow and entire; heads 

 rather small, the flowers all yellow, 21 



* Low, 1°-H° high, leafy to the top; leaves really opposite and sessile, but 

 divided into 3 leaflets, thus seeming to be 6 in a ichorl. Wild chiefly in 

 S. States; all but the first are cid't. in gardens. 



C. seni{61ia, Michx. Seemingly 6 lance-ovate and entire leaflets in a 

 whorl (i.e. two, but each 3-divided), smooth or downy. 



C. verticillata, Linn. The pair of leaves cut into once or twice pin- 

 nate almost tlircad-.shaped divisions, smooth. 



C. delphinifdlia, Lam. Very like the last, but with fewer lance- 

 linear divisions. 



* * Tall, leafy to the top, loith evidently opposite pctioled leaves. 



C. trlpteris, Linn. Stems simple, 4"-9° high ; leaves of 3-5 lanceo- 

 late entire leaflets ; heads corymbed ; very short outer involucre, and 

 blunt rays. Rich ground, W. and S. 



§3. Bays oval or oblong, golden ypllnv\ slightly notched; akenes wing- 

 less, mil inriirreil, Jiean'tni 2 airiis ay trdh fura j' '/'jnis; outer involucre 

 consj>i<'iiniis mill rrsriiihiiiig Imn-s ; l,rii iirliiiig iilmitsofvM grounds, 

 with Ihni Iiiiris iiiiistly if-]-l ju'innitr timthnl ur rvt veiny leaflets; re- 

 sembling the next genus, but the awns not downwardly barbed. ® (§) 



C. trichosp^rma, Michx. Swamps mostly near the coast ; l°-2'^ high, 

 with 3-7 lanceolate or linear cut-toothed leaflets or divisions ; numerous 

 heads, and narrow-oblong or linear wedge-shaped marginless akenes with 

 2 stout teeth. 



C. atirea, Ait. Upper leaves often simple, lower nearly as in the fore- 

 going, and shorter wedge-obovate akenes with 2 or 4 short, chaff-like 

 teeth. Va., S. 



C. aristdsa, Michx. Leaves more compouiul, with oblong or lanceo- 

 late, often ])innatifld leaflets, and broad-obovate, very flat akenes slightly 

 margined and bristly ciliate, the pappus of 2 long and slender awns, or 

 sometimes 3 or 4, or in one variety none at all. Mich., W. and S. 



