120 Trees with Simple Leaves. [Am 



Fig. 62, a and b — Black Oak, Yellow-Bark Oak, Quercitron, 

 Yellow Oak. Q. cocanea, var. tinctbria, Gray. Q. tinctbria, Bar. 



Leaves, simple ; alternate ; edge lobed (edge of the 

 lobes mostly entire, but oftenest with a few teeth 

 toward the end). 



Outline, reverse egg-shape or oval. Base, usually rounded. 

 Ends of the lobes and of the few teeth, sharp and 

 bristle-pointed, especially when young. 



Leaf, five to eight inches long ; three to five inches wide ; 

 very variable. The two types, a and b, are often 

 found on the same tree ; b is a variation toward the 

 leaf of the Scarlet Oak. The upper surface is rough- 

 ish, becoming smoother when mature ; the under 

 surface, rusty-downy until mid-summer, when the 

 down mostly disappears, except from the angles of 

 the ribs. 



Bark of trunk, blackish and deeply and roughly furrowed, 

 with an inner bark that is very thick and yellow and 

 bitter. 



Acorns, variable ; usually small ; on short stems. Cup, 

 thick ; somewhat top-shaped ; scales distinct and 

 rather large. Nut, one half to two thirds of an inch 

 long ; rounded ; nearly one third covered by the cup. 

 Kernel, bright yellow or orange and bitter. October. 



Found, from Southern Maine southward and westward. 

 Very common, especially in the Atlantic forests. 



A tree fifty to a hundred feet high, with wood that is 

 inferior to that of the White Oak. The yellow inner ^ark 

 (quercitron of the shops) is a valuable dye, and is rich n*. 

 tannin. Late in the autumn the leaves turn to a rich 

 yellowish-brown or russet: 



