Boxelder. Ash-leaved Maple 



1. Winter twig, x I, 



2. Leaf, x y 2 . 



3. Staminate flowering branchlet, x 



4. Staminate flower, enlarged. 



5. Pistillate flowering branchlet, x 



6. Pistillate flower, enlarged. 



7. Fruit, x i. 



192 



