Paper Birch. Canoe Birch. White Birch 



1. Winter twig, x i. 



2. Portion of twig, enlarged. 



3. Leaf, x i. 



4. Flowering branchlet, x y 2 . 



5. Staminate flower, enlarged. 



6. Pistillate flower, enlarged. 



7. Fruiting branchlet, x y 2 . 



8. Fruit, x 3J4. 



90 



