FOREST TREES OF THE PACIFIC SLOPE. 301 



.they remain on the branches about two years before falling (figs. 130, 137) 

 Margins of the leaves curled toward the under surface. Acorns, matured in 



Fio. 13C. — Qucrcus tomentella. 



autumn of the second year, are alwut la inches long and three-fourths of an 

 inch thick, the shallow chestnut-colored cups covered with a tawny or whitish 

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