PLATE LXV. BLACK OAK. 



2' Armature leaf ^x l^ iminature leaves - < s ) staminate blossoms, (p) pistillate blossoms, x |. 



3. Branch with leaves and mature fruit, x J. 



4. An acorn cup, x 5. 



5. An acorn, x I. 



6. Winter twig with buds, leaf-scars, and immature acorns, x J. 



7. Section of twig with immature acorns, x j. 



8. Section of winter twig showing the large, angular and pubescent bud and leaf-scars with bundle- 



scars, enlarged. 



