You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Delta Remove constraint Place: Delta Place Michigan Remove constraint Place: Michigan Place North America Remove constraint Place: North America Place Summer Island, above Lake Michigan Remove constraint Place: Summer Island, above Lake Michigan Topic Polypodiopsida Remove constraint Topic: Polypodiopsida Topic Pteridaceae Remove constraint Topic: Pteridaceae