Bacillariophyceae (33)

WkJtr. bUG™,
ov\ sfÿ^L.
VÎT- ^S.%
Determined by Francis Drouet
THE NEW YORK BOTANICAL GARDEN
DARIUS OGDEN MILLS FUND
FRESHWATER ALGAE OF PORTO RICO
COLLECTED BY PROFESSOR N. WILLE
PONCE MARCH 12, 1915
N O.U7-t
02112922