506 



TREES OF NORTH AMERICA 



A tree, occasionally 25 high, with a trunk often inclining, usually much contorted, 

 2'-10' in diameter and 6-8 long, stout wide-spreading branches, and stout branch- 

 lets, hoary-tomentose at first, marked by numerous small scattered lenticels, bright 



reddish brown during two or three years, ultimately dark gray-brown and conspicu- 

 ously roughened by the enlarged ring-like leaf-scars. Bark light gray, sometimes 

 slightly broken by shallow fissures and marked by irregular cream-colored blotches. 

 Distribution. Steep sides of a deep narrow arroyo on the south coast of Santa 

 Catalina Island, California. 



2. Cercocarpus parvifolius, Nutt. 



Leaves cuneate-obovate, rounded, obtuse or rarely acuminate, gradually con- 

 tracted at the base, coarsely glandular-serrate above the middle, or rarely almost 



entire, or slightly 3-toothed or apiculate at the apex, when they unfold coated with 

 pale pubescence, and at maturity subcoriaceous, dark yellow-green, puberulous or 

 glabrous on the upper surface, paler, slightly pubescent, and often nearly white or 



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