333 



Order IL POLYGAMIA SUPERFLUA. 



Florets all perfect and fertile, though those 

 of the circumference have no stamens, 



* Corolla of the marginal Jlorets obsolete, or wanting. 

 Discoid. 



392. TANACETUM. Recept, naked. Seed with a mem- 



branous crown. Cal. imbricated, hemispherical. 

 Florets of the circumference 3-cleft, obsolete, some- 

 times wanting. 

 395. CONYZA. Recept, naked. Down rough. Cal, im- 

 bricated, roundish. Fl. of the circumference 3-cleft. 



394. GNAPHALIUM. Recept, naked. Down rough, or 

 feathery. Cal, imbricated ; scales filmy, coloured. 

 Fl. of the circumference awl-shaped. 



393. ARTEMISIA. Z^g'c^;)^'. either naked or hairy. Down 



none. Cal, imbricated ; scales rounded, converging. 

 Fl, of the circumference awl-shaped, entire. 



Tussilago 2, 



** Corolla of the marginal Jlorets ligulate. Radiant. 



404. BELLIS. JRecp/)/. naked, conical. jDottw none. Cal, 



hemispherical ; scales equal. Seed obovate. 



407. MATRICARIA. Recept. naked, nearly cylindrical. 

 Down none. Cal. nearly flat, imbricated; scales 

 membranous at the edges. 



405. CHRYSANTHEMUM. Recept. naked, rather con- 



vex. Down none. Cal. hemispherical, imbricated ; 

 scales with a dilated membranous border. 



40G. PYRETHRUM. Recept. waVedi. &^^ crowned with 

 a border. Cal. hemispherical, imbricated; scales 

 rather acute, membranous at the edges. 



403. DORONICUM. Recept. naked. Down simple; 

 wanting on the seeds of the radius. Cal. a double 

 row of equal scales, longer than the disk. 



401. INULA. Recept. naked. Doxm simple. Cal, im- 

 bricated. Florets of die radius very numerous, linear. 

 Anthers with 2 bristles at the base. 



396. ERIGERON. Recept. naked. Down simple. Cal. 



