CHAP. II. 



FRUIT. 



197 



fourth class containing collective fruits, as has been done by 

 more carpologists than one. While the true aggregate fruit 

 is produced by the ovaries of a single flower, a collective 

 fruit, if aggregate, is produced by the ovaries of many flowers ; 

 a most important difference. As the pericarp is necessarily 

 much affected by the caH'x when the two adhere so as to form 

 a single body, it is indispensable, if a clear idea is to be 

 attached to the genera of carpology, that inferior or superior 

 fruits should not be confounded under the same name : for 

 this reason I have in all cases founded a distinction upon that 

 character. 



In order to facilitate the knowledge of the limits of the 

 genera of carpology, the following analytical table will be 

 found convenient for reference. It is succeeded by the cha- 

 racters of the genera in as much detail as is necessary for the 

 perfect understanding of their application. 



