You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Chippewa Remove constraint Place: Chippewa Place North America Remove constraint Place: North America Place South of Vermillion, in Shelldrake River bottoms. Remove constraint Place: South of Vermillion, in Shelldrake River bottoms. Topic Dryopteris Remove constraint Topic: Dryopteris Topic Polypodiales Remove constraint Topic: Polypodiales Topic Polypodiopsida Remove constraint Topic: Polypodiopsida