PLATE LXVI. SPANISH 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 i. 



3. An acorn cup, x i. 



4. An acorn, x J. 



5. Winter twig with immature acorns, buds, and leaf-scars, x i. 



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



