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 Bruce Remove constraint Place: Bruce Place Frog Island No. 16 Remove constraint Place: Frog Island No. 16 Topic Polytrichaceae Remove constraint Topic: Polytrichaceae Topic Polytrichales Remove constraint Topic: Polytrichales Topic Polytrichopsida Remove constraint Topic: Polytrichopsida Topic Polytrichum Remove constraint Topic: Polytrichum