116 WOOD AND FOREST. 



30 



Black Walnut. 

 Jnglans nigra Linnaeus. 

 Juglans niciins .Tore's nut; nigra refers to the dark wood. 





Habitat : ( See map) ; 

 liest in "western jSTorth 

 Carolina and Tennessee. 



Characteristics of the 

 Tree: Height, 90'-120', 

 even 150'; diameter, 3' 

 to even 8' ; clean of 

 branches for 50' to 60'; 

 bark, brownish, almost 

 ]>]ack, deep fissures, and 

 broad, rounded ridges; 

 leaves, l'-2' long, com- 

 pound pinnate, 15 to 2.3 

 leaflets, fall early: fruit, 

 nut. "with adherent husk, 

 and edible kernel. 



Appearance of Wood: 



Color, cliocolate brown, 

 sap-wood much lighter; 

 dilTuse-porous : rings, 



nmrked by slightly larger 

 pores : grain, straight ; 

 rays, numerous, tliin, not 

 conspicuous. 



Physical Qualities : 



^ycigllt, medium (31st 



