You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place North America Remove constraint Place: North America Place Port Huron St. Game Area. Ca. 43º01'29"N 082º37'34"W. Remove constraint Place: Port Huron St. Game Area. Ca. 43º01'29"N 082º37'34"W. Place St. Clair Remove constraint Place: St. Clair Topic Osmundales Remove constraint Topic: Osmundales Topic Polypodiopsida Remove constraint Topic: Polypodiopsida Type still image Remove constraint Type: still image