PLATE LXX. WILLOW OAK. 



1. Flowering branch with immature leaves, (s) 



staminate blossoms, (p) pistillate blossoms, 

 (i) immature acorns, x J. 



2. Branch with mature leaves, immature and 



mature acorns, x ft. 



3. An acorn cup, x i. 



4. An acorn, x i. 



o. Winter twig with buds, lenticels, and im- 

 mature acorns, x i. 



G. Section of winter twig, enlarged. 



J. Cross section of twig showing pentangular 

 pith, wood with conspicuous medullary 

 rays, and bark, enlarged. 



