86 SCIENCE PRIMERS. [xxi. 



carpel has a wing, and the two separate when ripe ; 

 they do not, however, open so as to let the seed 

 fail out. 



Mallow (Fig. 65). Fruit superior, a whorl of 

 many i -seeded carpels (achenes), combined by their 

 faces. Seeds solitary, albuminous. 



FIG. 65. Fruit of mallow surrounded with the calyx, enlarged. 



Deadnettle. Fruit superior, of 4 dry achenes, 

 each i-seeded. Seeds albuminous. 



Holly. Fruit (a drupe) superior, fleshy, of 4 com- 

 bined carpels, with four, i-celled, i -seeded stones. 

 Seeds albuminous. 



Olive. Fruit (a drupe) superior, fleshy, of 2 car- 

 pels, forming a single 2-celled stone ; cells i-seeded. 

 Seeds albuminous. 



Potato. Fruit (a berry) superior, of 2 fleshy 

 carpels, 2-celled, with many seeds in each cell. Seeds 

 albuminous. 



Apple (Fig. 66). Fruit 5-celled, of 5 carpels 

 enveloped in the fleshy swollen top of the peduncle, 

 each with a horny inner coat, and i or 2 seeds. Seeds 



