62 



Bulletin 194 



White Poplar. Silrer-leayed Poplar 



(Mich. Trees). 



1. Winter twig, x 1. 



2. Portion of twig, enlarged. 



3. Leaf, x 2. 



4. Staminate flowering branclilut, x '/l-, 



5. Staminate flower, enlarged. 



G. Pistillate flowering branchlct, x !,{.. 



7. Pistillate flower, enlarged. 



8. Fruit, X i/l.. 



