PLATE XXXII. 



1. A staminate flowering branch, x J. 



2. A staminate flower, enlarged. 



3. A pistillate flowering branch, x i. 



4. A pistillate flower, enlarged. 



5. Section of a fruiting branch, x i. 



AMERICAN ASPEN. 



6. A seed with hairs, enlarged. 



7. A branch with mature leaves, x J. 



8. A winter twig, x i. 



9. Section of a twig with a bud and a leaf- 



scar, enlarged. 



