HACKBERRY. 



231 



Plate 38. Celtis occidentalis. Hackberry. 



1. Flowering branch, one-half natural size. 2. Staminate flower before 

 straightening of filaments, enlarged. 3. Staminate flower, expanded, enlarged. 

 4. Perfect flower, enlarged. 5. Longitudinal section of perfect flower, enlarged. 

 <>. Diagram of flower. 7. Fruiting branch, one-half natural size. 8. Longitudi- 

 nal section of fruit, natural size. 9. Transverse section of fruit, natural size. 

 10. Winter twig, one-half naturahsize. 



reddish or yellowish turning- a dark purple when fully matured, 

 remaining 1 on tree into the winter; peduncle twice the length 

 of the petioles. Generally a small but sometimes a large tree 

 over 100 feet high and 2 or 3 feet in diameter. The tree 

 resembles the White Elm, but the branches come out more at 

 right angles and the bark is rougher and more closely divided 

 than that of the White Elm. 



Distribution From Ontario west to Lake of the Woods, 

 Dakota, Colorado and Arkansas and south to Georgia and 



