PLATE LXXIII. HACKBERRY. 



1. Brancli with imimature leaves, staminate and pistillate flowers, x J. 



2. A staminate flower, enlarged. 



3. A pistillate flower, enlarged. 



4. A branch with mature leaves and mature fruit, x i. 



5. A winter twig, x i. 



6. Section of a winter twig showing chambered pith, enlarged. 



7. A leaf -scar with bundle-scars, enlarged. 



