A TEXT-BOOK OF BOTANY. 



nial, procumbent, branched herb, with numerous 2- to 3-pinnately 

 divided leaves, the ultimate segments being narrow-linear. The 

 flowers occur in terminal heads with long peduncles, a conical 

 torus and few white pistillate ray-flowers. The flowers of culti- 



FlG. 393. Daisy-fleabane (Erigeron annuus). 



vated plants are official (see Vol. II), the heads consisting mostly 

 of ligulate flowers, forming so-called " double flowers," as in the 

 cultivated chrysanthemums. 



Anacyclus Pyrethrum (Pellitory) is a perennial herb resem- 

 bling Anthemis nobilis in its general characters. The ray-flowers, 



