58 



Bulletin 194 



Crack Willow 



(Mich. Trees). 



1. Winter twig, x 1. 



2. Portion of twig, enlarged. 



3. Leaf, x 1. 



4. Staminate flowering branchlet, x i{. 



5. Staminate flower, enlarged. 



6. Pistillate flowering branchlet, x 1/l>- 



7. Pistillate flower, enlarged. 



8. Fruiting branchlet, x 14. 



