PLATE LXX. WILLOW OAK. 



1 Flowering branch with immature leaves, (s) 

 staminate blossoms, (p) pistillate blossoms, 

 (i) immature acorns, x h. 



2. Branch with mature leaves, immature and 

 mature acorns, x J. 



3. An acorn cup, x h 



4. An acorn, x i. 



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

 mature acorns, x i. 

 G. Section of winter twig, enlarged, 

 7. Cross section of twig showing pentangular 

 pith, wood with conspicuous medullary, 

 rays, and bark, enlarged. 



