PLATE XLI. PIGNUT HICKORY. 



1. Branch with immature leaves and flowers, x i. 



2. Branch with mature leaves and fruit with husk partly removed, x 



3. A nut with husk removed, x i. 



4. Cross-section of a nut, x I. 



5. A winter branch, x i. 



6. Terminal section of a winter branch, enlarged. 



7. A leaf -scar with bundle-scars, enlai-ged. 



