The Yrees of Texas 85 
Delaware, Florida, west to the Colorado River, Texas. 
The wood is heavy, hard, close grained and strong. It is 
used for fuel. 
24. Quercus Phellos L. Willow Oak. A forest tree 70°- 
80° high, with trunk diameter of 2°-4°. The branches are 
small and form a rather narrew, open rounded crown. The 
bark is thin, %’-%’ thick, light reddish brown, smooth on 
young branches, shallowly fissured on old trunks. Leaves 

Fig. 21. Quercuz Phellos. 
linear oblong, ovate lanceolate or sometimes lanceolate-obo- 
vate, acute at both ends often faleate, entire or undulate mar- 
gin, 214’-5’ long, 1%4’-1’ wide, borne on short petioles, thick, 
smooth and shining above, paler and somewhat hairy beneath. 
Acorns borne usually solitary, sessile or very short-stalked ; 
nut subglobose or hemispherical, covered with pale pubescence, 
