SYCAMORE. BUTTON-BALL TREE 



1. Winter twig, x 1. 



2. Portion of twig, side view, x 1. 



3. Vertical section of twig, summer bud and leaf petiole, enlarged. 



4. Leaf, x %. 



5. Flowering branchlet, x V 2 . 



6. Staminate flower, enlarged. 



7. Pistillate flower, enlarged. 



8. Fruit, x %. 



9. Achene, enlarged. 



(From Otis: Mich. Trees) 



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