PLATE XXXIII. LARGE-TOOTHED ASPEN. 



1 A staminate flowering branch, x J. 

 A staminate flower, enlarged. 

 A pistillate flowering branch, x J. 

 A pistillate flower, enlarged. 

 A fruiting catkin with capsules, x J. 

 A seed with hairs, enlarged. 

 A branch with mature foliage, x J. 

 A winter twig, x J. 

 Section of a winter twig, enlarged. 



