10 



MASS. EXPERIMENT STATION BULLETIN 418 



Mailing I. 

 Leaf rather large and broad, somewhat folded and waved, with rather sharp serrations; 

 petiole stout, usually with large stipules. 

 Growth rather tall and stout. Bark dark with moderately conspicuous lenticels. 



Mailing II. 

 Leaf medium sized, with rather dull, shallow serrations, short distinct tip, slender petiole, and 

 small or no stipules. 



Growth stout. Bark with whitish, conspicuous lenticels. 



