88 



AMERICAN MUSEUM GUIDE LEAFLETS 



from the gray birch by the fact that the 

 white shining bark of the trunk continually 

 splits into thin layers and i- frayed in the 

 wind. The white birch grows to great size. 

 Black Birch {Betvla lenta L.) has twigs 

 of golden brown color and aromatic flavor, 



FIG 59. GRAY BIRCH IN WINTER 



FIG. 60. YELLOW BIRCH 



Hie bark may be frayed into a tangle of ribbons 



differing from those of the gray birch in 

 being brittle instead of tough. The tree 

 can l>e distinguished also by the bark of 



the trunk, which is likely to be s ih 



and reddish brown like thai of the cherry, 

 but lacks the horizontal lenticels of the 

 cherry; it never trays into strips when old. 



