60 KEY TO GENERA AND SPECIES 



106. Leaflets n to 17, sticky-hairy, as are also the 

 leaf-stalks and young fruits. Fruit oblong. 

 New Brunswick southwestward. (Figs. 103, 

 104, 105.) Butternut, White Walnut, 

 Oilnut, Juglans cinerea L. 



106. Leaflets 15 to 23, not sticky. Fruit globular. 

 Southwestern New England and central 

 N. Y. southward and westward, also cult. 

 (Figs. 106, 107, 108.) Black Walnut, 

 Walnut, Juglans nigra L. 



HICKORY. Leaves compound. Leaflets 5 to n. 

 Fruit husk regularly splitting into 4 parts 

 at maturity. Nut smooth. 



