PLATE LIX. YELLOW OAK. 



1. Flowering branch with immature leaves, (s) staminate blossoms, (p) pistillate blossoms, x 

 2. Branch with mature leaves and mature acorns, x J. 

 25. An acorn, x J. 



4. An acorn cup, x 5. 



5. Terminal section of winter twig, x J. 



6. Section of winter twig showing buds lenticels. and leaf-scars with bundle-scars, enlarged. 



