You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Isle Royale. Siskiwit Lake, Ryan Island. Remove constraint Place: Isle Royale. Siskiwit Lake, Ryan Island. Place Keweenaw Remove constraint Place: Keweenaw Topic Cladina Remove constraint Topic: Cladina Topic Lichens Remove constraint Topic: Lichens Type still image Remove constraint Type: still image