BLACK WALNUT. 



Juglans nigra L. 



Fig. 56. Branchlet with leaves and fruit, i ; fruit in cross-section, 2; nuts with epicarps re- 

 moved, 3 : a vigorous leaf, 4 ; branchlet in winter, 5. 



57. Trunk of tree in Genesee valley, N. Y. 



58. Wood structure magnified 15 diameters. 



