66 



BULI-ETIN 194 



Large-toothed Aspen 



(Mich. Trees). 



1. Winter twig, x 2. 



2. Leaf, x 1. 



3. Staminate flowering branchlet, x Vo. 



4. Staminate flower, enlarged. 



5. Pistillate flowering branchlet, x V^. 



6. Pistillate flower, enlarged. 



7. Fruit, X ij. 



