You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Black River, in or near sec. 22, Benton Tp., ca. 1 1/2 3 1/2 mi. NW of Alverno. Remove constraint Place: Black River, in or near sec. 22, Benton Tp., ca. 1 1/2 3 1/2 mi. NW of Alverno. Place Cheboygan Remove constraint Place: Cheboygan Place Michigan Remove constraint Place: Michigan Topic Alismatales Remove constraint Topic: Alismatales Topic Plantae Remove constraint Topic: Plantae Topic Potamogetonaceae Remove constraint Topic: Potamogetonaceae Type still image Remove constraint Type: still image