PLATE XXXV. COTTONWOOD. 



1. A slaraiuate flowering branch, s I. 



2. A staminate flower, enlarged. 



3. A pistillate flowering branch, x *. 



4. A pistillate flower, enlarged. 



5. Section of a branch with a fruiting catkin and capsules, 



6. A seed with hairs, enlarged. 



7. Section of a branch with mature foliage, x J. 

 S. A winter twig, x h 



3. Section of a winter twig, enlarged. 



X J. 



