1 76 COMPOSITE. [CLASS 



COMPARE the common receptacles of Dandelion and 

 Common Chamomile (Antliemis nobilis) after removing 



FIG. 119. Chaffy (paleaceous) common receptacle o the Chamomile. 



the florets. In the former it is naked, in the latter 

 covered with small chaffy scales {paleaceous}. In some 

 plants the bracts of the involucre pass gradually into the 

 palece of the common receptacle. 



Compare, also, the fruit-achenes of Thistle, Dandelion, 

 and Daisy. 



In Thistle they are crowned by a sessile crown of hairs, 

 called a pappus (representing the limb of the calyx in 

 Composites); in Dandelion by a stalked (stipitate) 

 pappus. In Daisy the pappus is obsolete. 



FIG. T2o. Fruit or' Thistle, with FIG. 121. Fruit of Dandelion with 

 sessile, plumose pappus. stipitate pappus. 



