ANGIOSPERMS 



241 



tacle) like a cap (Fig. 233). A strawberry is a very much 

 enlarged and fleshy receptacle, in the surface of which 

 minute akenes are imbedded (Fig. 234). A blackberry is 

 not only a cylindrical mass of small stone-fruits, but also 

 includes the fleshy receptacle. 



In such fruits as apples, pears, and quinces, the fleshy 

 part is the modified cup-like base of the flower surrounding 



FIG. 236. Pineapple in surface view and section. 



the ovary, which with its contained seeds is represented 

 by the core (Fig. 235). An extreme case is the pineapple, 

 in which a whole flower-cluster has become an enlarged 

 fleshy mass, including axis and bracts (Fig. 236). 



