You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Michigan Remove constraint Place: Michigan Place Porcupine Mt. State Park, Lake of the Clouds outlet at Mirror Lake trail crossing. Remove constraint Place: Porcupine Mt. State Park, Lake of the Clouds outlet at Mirror Lake trail crossing. Place USA Remove constraint Place: USA Topic Dryopteridaceae Remove constraint Topic: Dryopteridaceae Topic Dryopteris Remove constraint Topic: Dryopteris Topic Polypodiales Remove constraint Topic: Polypodiales Topic Polypodiopsida Remove constraint Topic: Polypodiopsida