KEY TO GENERA AND SPECIES 



(Fig. 198.) American Crab, 

 Sweet Crab, Pyrus corona- 

 ria L. M 



154. Leaves somewhat regularly 

 toothed, not lobed 155. 



155. Fruit narrower towards the base. Fig. 195. 

 Cult. (Figs. 199, 201.) Pear, Quince " 

 Common Pear, Pyrus communis L. 



Fig. 196. Apple. Fig. 197. Apple. 



155. Fruit about an inch in diameter, not narrower 



towards the base 156. 



156. Fruit yellow with a red cheek. Cult, and 



occasionally escaped in New England. Na- 

 tive in Asia. (Fig. 200.) Siberian Crab, 

 Pyrus baccata L. 



