140 WOOD AND FOREST. 



42 



BLACK OAK. YELLOW BARK OAK. 



Black refers to color of outer bark; yellow bark, refers to the inner 

 bark, which is orange yellow. 



Quercus velutina Lamarck. Quercus tinctoria Michaux. 



Quercus, the classical Latin name; velutina, refers to the velvety surface 

 of the young leaf; tinctoria, refers to dye obtained from inner bark. 



Habitat: (See map); 

 best in lower Ohio valley. 



Characteristics of the 

 Tree: Height, 70'-80', 

 even 150'; diameter 3'-4'; 

 branches, low; bark, dark 

 gray to black, deep fis- 

 sures, broad, rounded, 

 firm ridges, inner bark, 

 yellow, yielding dye ; 

 leaves, large, lustrous, 

 leathery, of varied forms; 

 acorns, small; kernel, yel- 

 low, bitter. 



Appearance of Wood: 



Color, reddish brown, sap- 

 wood lighter ; ring-por- 

 ous; rings, marked by 

 several rows of very large 

 open ducts ; grain, 

 crooked; rays, thin. 



Physical Qualities : 

 Heavy (17th in this list), 

 45 Ibs. per cu. ft. ; sp. gr. ? 



Habitat. 



Leaf. 



