CLASSIFICATION OF FRUITS 197 



A hesperidium is a berry with a tough, flexible rind as in 

 the orange, lemon and grape fruit. 



A pepo is a berry with a hard, tough rind, as in the pumpkin 

 and squash. 



Drupaceous Fruits. The drupe and drupelet are drupa- 

 ceous or stone fruits. 



A drupe is a fruit with an epicarp, a sarcocarp and a hard, 

 bony endocarp or putamen that encloses the seed, as in the 

 cherry and peach. 



A drupelet is a small drupe, as in the fruits forming the 

 blackberry. 



Indehiscent Accessory Fruits. An accessory fruit is one 

 composed of a pistil or pistils and other parts. 



Accessory fruits are classified as simple, aggregate and 

 multiple. 



Simple Accessory Fruits. The pome is a simple, fleshy 

 accessory fruit composed of a fleshy, hollow receptacle 

 enclosing five ovaries and ten rows of seeds, as in the apple. 



Aggregate Accessory Fruits. Aggregate fruits are formed 

 from several pistils of one flower. 



An etcerio is an indehiscent, fleshy, aggregate fruit com- 

 posed of numerous drupes adhering to a fleshy receptacle, 

 as in the blackberry, or of numerous achenes on a fleshy 

 receptacle, as in the strawberry. 



Multiple Accessory Fruits. Multiple fruits are formed 

 from the pistils of several flowers. 



The pineapple, synconium of the fig, sorosis of the mul- 

 berry and the galbulus of juniper are multiple accessory 

 fruits. 



The pineapple is an indehiscent, fleshy, accessory, multiple 

 fruit composed of the ripened ovaries of several flowers 

 together with fleshy, modified scales, bracts and a floral axis. 



A synconium is a fleshy, accessory, multiple fruit consist- 



