152 



Bulletin 194 



Choke Cherry 



(Mich. Trees). 



1. Winter twig, x 1. 



2. Portion of twig, enlarged. 



3. Leaf, x 1. 



4. Margin of leaf, enlarged. 



5. Flowering branchlet, x %. 



6. Vertical section of flower, enlarged. 



7. Fruit, X %. 



