B0SACE2E. 



405 



and exterior or dorsal, capped by obturators formed by the thickened 

 placenta.' The fruit is a drupe, at the base of which is seen the 

 scar of the receptacle and calyx. In Frm^a' proper, the epicarp of 



Frunus Padus {Bird Cherry). 



Fig. 477. 

 Inflorescence. 



Prunus Mahaleb. 





Fig. 478. 

 Inflorescence. 



this drupe is glabrous, often covered with a whitish bloom ; the meso- 

 carp is thin and fleshy. The endocarp forms a compressed ovoidal 



475, 476), thus becoming analogous to those of 

 Isuttallia or several Spireea: or QuillajecB. Some- 

 times these carpels are formed like the normal 



Fig. 475. 



ones, and possess a biovulate ovary ; sometimes 

 as in the double Cherries of our gardens, they 

 are more or less leaf-like, opened out and hypcr- 

 trophied. The same thing often occurs in the 



little flowering Plum-trees of our parterres, es- 

 pecially P. triloba LiNUL. Hence Caeki^re 

 ( Rev. Rortlc. (1862), 91, Icon.) proposed the 



Fig. 476. 



genus Amygdalopsis (" eat forma vionstrosa 

 iiipjilp pro genere hahita," B. II., Gen., GIO). 



' The ovules have two coats ; above them the 

 l)ki(.'ciita forms two more or less prominent and 



/ 



