Sycamore. Button-wood, liuttonlmll-trev 



-i. Winter twig, x I. 



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



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



4. Leaf, x Y*. 



5. Flowering bratichlet, x l /2. 



6. Staminate flower, enlarged. 



7. Pistillate flower, enlarged. 



8. Fruit, x 2i 



9. Adiene, enlarged. 



140 



