56 



THE FRUIT. 



mass. Ex. currant, whortlebeiTy. Tlie orange and lemon an- 

 swer this definition, and are therefore benies. 



FIG. 18. — Forms of fruit ; 13, naked achenia of Fragaria on the surface of the enlarged, 

 fleshy receptacle ; 14, drupaceous achenia of a Rubus on a fleshy, deciduous receptacle; 1.5, 

 samara of Acer ; 16, pyxis of Hyoscyamus ; 17, pome of Pyrus (pear); 18, berr>' of Ribes 

 (gooseberry); 19, section of the same enlarged ; 20, sirobilo of Piiius; 21, cremocarp of the 

 UrabelliferEB, as Conium. 



a. This definition cannot include the strawberry, which consists of an en-* 

 larged, fleshy receptacle, bearing numerous achenia upon its surface. Nor does 

 it include the blackbeiTV, which, like the other species of the llubus, is an aggre- 

 gate fi-uit composed of united drupes. These fruits are called Etseria, by Mirbel. 

 (Fig. 18; 13, 14.) 



15. Strobile (cone). This is an aggregate fruit, consisting 

 of scale-like carpels spread open, with naked seeds on their 

 inner side, at base. Such is the fruit of the fir tribe, which is 

 on this account called Conifcra?. 



