xl 



BOTANY. 



1. Onestone, usually one-celled— e.g., Cherry . Drotk. 



2. Stones or papery carpels, two or more— 



e.g., Apple Po^- 



Fie. XLI.— Achenial Fruits: 1, nut of Oak, also shown in section; 2, achene of 

 Buckwheat; .3, double samara of Maple. 



VI. Aggregate fruits. — Polycarpellary ; carpels always distinct. 



The forms of these are not well distinguished. In manyRanun- 

 culacese there are numerous achenes on a pro- 

 longed receptacle; in Magnolia numerous follicles 

 are similarly arranged; in the raspberry many 

 drupelets cohere slightly into a loose mass, which 

 separates at maturity from the dry receptacle ; in 

 the blackberry similar drupelets remain closely 

 attached to the fleshy receptacle ; in the strawberry Berry of Grape, 

 there are many small achenes on the surface of the fleshy recep- 

 tacle; finally, in the rose several to many achenes are inclosed 

 ■within the hollow and somewhat fleshy receptacle. 



