Paper Birch. Canoe Birch. White Birch 



1. Winter twig, x i. 



2. Portion of twig, enlarged. 



3. Leaf, x i. 



4. Flowering branchlet, x l / 2 . 



5. Staminate flower, enlarged. 



6. Pistillate flower, enlarged. 



7. Fruiting branoh'let, x l /2. 



8. Fruit, x 3 l / 2 . 



90 



