Silva of North America. . Tab. CCCCLUI. 
Geou 
=F OSC}. 
REX ee 
Soe 
ye) 
ort 
5 ras; Ss : 
Tal OR SN ea ee 
SST, 
= 
Ta 
BSS 
0 
tes 
Be 
CE. Faxon det. Lebrun SL, 
BETULA OCCIDENTALIS, Hook. 
A.Riocreux direx? lip. J. Taneur, Paris. 
