FAMILIES or FLOWERING PLANTS. 



251 



and most familiar North Ameri- 

 can genera, Aste7- and SoUdago. 

 They are the most ornamental 

 of our fall blooming wild flow- 

 ers, and there is great diversity 

 among the species, (Fig. 223.) 

 Here also belong the various 

 species of Baccliaris, the only 

 shrubby composite in eastern 

 North America. The Inuleae 

 contain the majority of the so- 

 called "everlastings," the flower- 

 heads of which are dry and 

 chaffy in texture, so that they 

 keep in good condition for a 

 long time. The edelweiss be- 

 longs to this tribe, as also the 

 cudweeds and wild everlastings 

 of our meadows The " Eose-of- 

 Jericho " is a species of Odon- 

 fosper7num inhabiting the desert 



OI haiiara. . Fig. 221. The cocklebur (Xanthium Canadense). 



The Heliantheae include some After Britton and Brown, ni. F1. Northeast. U. S. 



of our more showy-flowered composites, such as the sunflowers {He- 

 lianthus), of which there are many North American species, and the 

 Rndhechias, Coreopsis and Bidens. The garden marigolds (Tagetes) are 

 closely related. (Figs. 224 and 225.) In the Anthemideae belong sev- 

 eral of our rank weeds, like the iil-scented mayweed and the ox-eye 

 daisy, also the chrysanthemum, which in its cultivated form has been de- 

 veloped from species with 

 only a single row of rays ; 

 the wormwoods and sage- 

 brushes {Artemisia) and 

 the feverfew {Pyrethriim). 

 A species of the latter 

 genus yields buhach, or 

 Persian insect powder. 

 The Senecioneae contain 

 the huge genus Senecio 

 and the garden cinerarias, 

 while the final tribe we 

 shall mention, the Cyna- 

 reae, comprises all the 

 thistles and thistle-like 

 plants distributed through 

 various genera, of which 

 Carduus, Centaur ea s^nd Arc- 

 tium, (the burdock) are the 

 X>rincipal ones. (Fig. 226.) 

 All the Compositae agree 

 FIG. 222. v^on^s^i [Eupatoruunperfoiiatum). After Britton in having the Same general 



and Brown, 111. Fl. Northea.st. U. S. StrUCture aS the Cichori- 



