Paper Birch 





h 



a. Winter twig, x 1. 



b. Portion of twig, enlarged. 



c. Leaf, X 1. 



d. Flowering branchlet, x I/2. 



e. Staminate flower, enlarged. 



f. Bract with pistillate flowers, 

 enlarged. 



g. Fruiting branchlet, x i/^. 

 h. Nutlet, X 5. 



[148] 



