Trees of North Carolina 



Leaves scurfy-hairy ; shell of nut 



thin, hull thick Scaly-bark Hickory (27) 



Leaves smooth. 



Hull contracted into a. neck at 



the base Pig-nut Hickory (30) 



Hull not contracted into a 

 neck at the base. 

 Hull of nut thick, shell 



thin N. C. Scaly-bark (28) 



Hull of nut thin, shell thin Small-fruited Hickory (29) 

 Bark not flaky. 



Leaflets smooth, broad ; nut with 

 a persistent hull and usually 



with a neck at the base Pig-nut Hickory (30) 



Leaflets hairy, broad ; nut with 



- thick shell White-heart Hickory (32) 



Leaflets with minute silvery or 

 brownish scales below, nar- 

 row ; hull of nut yellow with 



minute particles Pale Hickory (31) 



Leaves hairy, leaflets narrow to 



broad ; nut bitter Bitternut (33) 



Leaflets smooth, narrow and 

 numerous ; nut bitter, flatten- 

 ed, rough Water Hickory (34) 



Fruit a nut with a green hull that 

 does not split away. 



Hull of nut with sticky hairs Butternut (25) 



Hull of nut without sticky hairs. .Black Walnut (26) 

 B. Leaves compound, opposite on the twig. 



Leaflets clustered at the end of the leaf- 

 stalk (palmately compound) Buckeye (133) 



Leaflets not clustered at the end of the leaf- 

 stalk (pinnately compound). 

 Leaflets not lobed ; fruit simple with an 

 apical wing. 

 Fruit averaging 2 inches or more long ; 



a tree of the coastal swamps Pumpkin Ash (156) 



Fruit less than 2 inches long. 



Wing narrow, linear, extending about 



half way down the narrow seed. . . Darlington's Ash (157) 

 Wing spatulate, broad, extending 

 about half way down the long nar- 

 row seed. 



Twigs and leaf-stalks velvety Red Ash (155) 



Twigs and leaf-stalks smooth Green Ash (155) 



