The Trees of Texas 75 



12. Quercus Emoryi Torrey. Black Oak. A small round- 

 toppcd tree ^0 to 40 high with short trunk, stout drooping 

 branches and slender reddish branchlets. Bark l'-2' thick, 

 deeply divided, dark brown. Leaves oblong, lanceolate, 

 pointed, entire or somewhat toothed, l'-2%'long, Va'-l' wide, 

 thick and glossy when mature, persistent until spring. Fruit 



Fig. 14. Quercus Emoryi. 



sessile or nearly so, ripening from July to September of the 

 first year; acorn oblong or oval %'-%' long, 1 // wide, enclosed 

 for about one-third its length in the cup-shaped cup. 



On mountain sides and in canyons. New Mexico, Arizona, 

 northern Mexico and Texas. In Texas it occurs in the Limpia 

 jind (Miisos mountains. 



Tlu> wood is soft, strong, brittle, close grained, dark brown. 

 The acorns are sweet and edible, being used as food by the 

 Mexicans. 



13. Quercus breviloba (Torrey) Sargent. Texan White 

 Oak. A shrub or small tree sometimes reaching a height of 

 2"> -:$0. The trunk divides near the base to form several 

 branches. The thin, silvery, gray bark separates from the 



