PLATE LX. CHESTNUT OAK. 



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



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



3. An acorn cup, x J. 



4. An acorn, x I. 



5. A winter twig showing buds, lenticels, leaf-scars, fluted bark, and pentangular pith, x i. 



6. Section of a winter twig, enlarged. 



7. Cross section of a twig showing pentangular pith, wood with conspicuous medullary rays, inner- 



and outer bark, enlarged. 



8. A basal bud-scale with hairy margin, enlarged. 



9. An apical bud-scale with hairy margin, enlarged. 



