FOEEST TEEES OF THE PACIFIC SLOPE. 



291 



coated with very minute, short hairs, which later disappear. Mature leaves 

 (fig. 130), very distinctive, are thick, very deep hlue-green. and either smooth 

 or with a few star-shaped hairs on their top sides ; under surfaces and leaf 



Fig. 130. — Querent engelmanni. 



stems light yellowish-green, and mure or less coated with tawny minute hairs 

 (which are sometimes practically absent, however); exceedingly variable in 



form and size, larger leaves occurring on vigorous shoots (fig. 129). Acorns 



