n4 Trees with Simple Leaves. [Am 



Acorn, nearly stemless. Cup, about five twelfths to seven 

 twelfths of an inch across ; rounded ; thin, with very 

 small, closely pressed scales. Nut, seven twelfths to 

 nine twelfths of an inch long; egg-shape or narrow 

 oval, light brown, about one third covered by cup ; 

 sweet. October. 



Found, from Massachusetts to Delaware, along the moun- 

 tains to Northern Alabama and westward. Very 

 common west of the Alleghany Mountains. 



A tree forty to sixty feet high, with strong and durable 

 wood. 



Fig- 59-— Black Jack, Jack Oak, Barren Oak. Q. nigra, L. 



Leaves, simple ; alternate ; edge slightly lobed at 

 the upper part (edge of the lobes entire). 



Outline, abruptly widening above. Base, heart-shape or 

 rounded. Apex of lobes, rounded or sometimes 

 slightly pointed, and bristle-tipped, at least until old. 



Leaf, three to four inches long (on vigorous shoots much 

 longer) ; dark green, smooth, and shining above ; 

 below rusty and roughish, thick and tough ; ribs 

 distinct above. Lobes, three (sometimes five), very 

 short, and above the middle of the leaf. 



Bark of trunk, rough and blackish. 



Acorn, nearly or quite stemless. Cup, top-shaped, coarsely 

 scaly. Nut, one half to two thirds of an inch long ; 

 rounded egg-shape ; darkish-brown when ripe ; nearly 

 one half covered by the cup. October. 



