Black Walnut 



1. Winter twig, x i. 



2. Leaf,, x i/e. 



3. Leaflet, x 54 



4. Flowering branch-let, x l / 2 . 



5. Staminate flower, back view, enlarged. 



6. Pistillate flower, enlarged. 



7. Fruit, x y 2 . 



64 



