KEY TO GENERA AND SPECIES 



67 



long loose plates. Nut about i inch across, 

 with a thick shell. Kernel of seed sweet. 

 Southern New England southward and 

 westward. (Figs. 115, 116.) Mockernut, 

 White-heart Hickory, Bullnut, Carya alba 

 (L.) K. Koch. 



Bitternut Hickory. 



no. Leaflets finely hairy only when young. Fruit 

 husk less than f of an inch thick. Bark 

 hard and close, not separating into loose 

 plates. Nut hardly i inch across, with a 

 thin shell. Kernel of seed bitter. South- 

 western Me. southward and westward. 

 (Fig. 117.) Bitternut, Swamp Hickory, 

 Carya cordiformis (Wang.) K. Koch. 



