STATISTICS OF METASPERMAE. 
633 
Genera Represented in the Minnesota Valley.—Continued. 
NORTHERN 
EXTRATROPICAL. 
WESTERN HEMISPHERE 
NORTH AMERICA, 
aoe y jd See asd 
Potentilla............ ot 
Geum 
Staphyled.......0ce0e000- 
Acer 
Rhamnus 
