﻿Yellow Birch, Gray Birch 



Betula lutea Miehx. f. 



1. A twig showing pistillate and staminate 



aments x % 



2. Bract and bracteoles from staminate 



anient, distal view x 7V2 



3. Staminate flowers with subtending bracts 



and sepals, axile view x 7% 



4. Bract and bracteoles showing styles, 



abaxile view x 7% 



5. Pistillate flowers with subtending bracts, 

 axile view x 7% ■■ ^ •* 



G. A twig showing mature leaves and fruit- 

 ing strobiles x % 



7. Scale from fruiting strobile, abaxile view 

 X 2 



S. Winged nutlet x 4 



9. Winter twig with staminate aments x Va. 



