y 



Texan Walnut 



219 



its specific gravity is about 0.61. It is vcrv (J'-rable, easily worked, takes a fine 

 polish, and is a very beautiful wood, 1. ght for furniture, cabinet and 



inside work, and gunstocks, and is the most valuable wood of the North American 

 forests. The nuts are used for food to a considerable extent. 



Fig. 178. 



Black Walnut, Xew Dorp, X. V. 



A handsome tree for shade or ornament, often planted, but disappointing on 

 account of the short duration of its foliage. It is now planted for lumber. 



Trees intermediate between the Butternut and the Black walnut, with elon- 

 gated fruit, possibly natural hybrids, occur in the Delaware valley, and trees 

 apparently crosses of the Black walnut with the European walnut occur in various 

 places in the eastern States. 



3. TEXAN WALNUT Jugli"" . rupestris Engelmann 



An inhabitant of the limestone regions of western Te.xas, where it occurs as a 

 tree with a maximum height of 9 meters, but is often only a large shrub. 



Its branches are mostly upright, forming a stitT, narrow tree. The bark is 

 about 8 mm. thick, furrowed and broken into close plates; on young stems it is 

 quite smooth and yellowish white. The twigs are slender, brown, finely densely 

 hairy, becoming smooth, nearly white, and marked with small triangular leaf 

 scars. The terminal winter buds are about 8 mm. long, verv hairv. The leaves 



