104 



Bulletin 194 



Paper Bireli. Canoe Birch. Wliite Birch 



(Mich. Trees). 

 Winter twig, x 1. 

 Portion of twig, enlarged. 

 Leaf, X 1. 



Flowering branchlet, x 1/4. 

 Staminate flower, enlarged. 

 Pistillate flower, enlarged. 

 Fruiting branchlet, x i/.. 



1. 



2. 

 3. 

 4. 

 5. 

 fi. 

 7. 

 8. FriiK, X :!i/o. 



