Potamogeton amplifolius Tuck.

S OF ONTARIO, CANADA
HASTINGS COUNTY
Potamogetón amplifolius Tuckerm.
Marmora Township,, Crowe Lake and Crowe
River near the lake outlets 2 3 miles northwest
of Marmora, 44° 305N> 77°41!W.
In 3-5 feet of water. Common.
No. 6742 Coll. J. M. Gillett August 6, 1952
Division of Botany, Science Service
Department of Agriculture» Ottawa, Canada
03708614