You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Keweenaw Remove constraint Place: Keweenaw Place Passage Island, SW end of, Isle Royale National Park Remove constraint Place: Passage Island, SW end of, Isle Royale National Park Topic Plantae Remove constraint Topic: Plantae Topic Sphagnaceae Remove constraint Topic: Sphagnaceae Topic Sphagnopsida Remove constraint Topic: Sphagnopsida