Dendrology 



57 



the leaves are out and their seed is ripe in early summer. 

 The sugar maple and box elder bloom after the leaves 



Fio. 8. Box elder (Acer Negundo). 



are out and ripen their seed in the fall. The sugar maple 

 is the most valuable species for wood as well as fur itfl 

 good qualities as a shade tree. It is an excellent fuel 



