YELLOW BIRCH. GRAY BIRCH. 



Betula luiea Michx. 



Fig. 143. Branchlet with leaves and fruit, i; cone scales, 2; seeds, 3; branchlet bearing leaves 

 and young staminate catkins for next season's flowering, 4 ; branchlets in winter, two bearing 

 young catkins, 5. 



144. Trunk of tree, Lewis Co., N. Y. 



