You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Michigan Remove constraint Place: Michigan Place NE of intersection of Helmer Lake Rd. and Mt. Tom. Remove constraint Place: NE of intersection of Helmer Lake Rd. and Mt. Tom. Place North America Remove constraint Place: North America Place Oscoda Remove constraint Place: Oscoda Topic Diphasiastrum Remove constraint Topic: Diphasiastrum Topic Lycopodiopsida Remove constraint Topic: Lycopodiopsida