Black Willow, Crack Willow 



Salix nigra Marsh. 



1. A twig showiiif? staminate aments x V2 



2. A staminate flower, axile view x 5 



3. A twig showing pistillate aments x % 



4. A pistillate flower, axile view x 5 



5. A vigorous twig showing leaves and stip- 



ules x % 



6. A branch showing leaves and fruitin; 



aments x % 



7. Mature capsule x 4 



8. Comose seed x 4 



9. Portion of leaf-margin, enlarged 

 10. Winter twig x Yn 



