89 
Carpinus caroliniana Walt. 
Be tula lenta L. 
B. lutea Michx* f. 
AcTLlaufti ft X: 
tUU. i. 
U.£_. i; /5v(; j:|. 
B. populifol^ tersh , ^ is ^ >■ 
B, pendula Roth. 
B* caerulea Blanchard. (P.E.I., e; Me.) 
B. alba L. (B. pubescens) 
^ / 
B. papyrifera ilarsh ^ ^ 
%ui, a ii. ,*tz, /9W, ^ 
B. pap., var. (pendulous) 
B. pap., ,var. cordifoli^fRee-el) Fernald 
B. pap., var. elobata (Fernald) Sargent. 
B. minor (Tuckerm.) 
/ 
(Saspe 
«: 
;d; 
