You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Dawson Township, Mississagi Lighthouse, extreme western end of Manitoulin Island. Remove constraint Place: Dawson Township, Mississagi Lighthouse, extreme western end of Manitoulin Island. Place Manitoulin Remove constraint Place: Manitoulin Place Ontario Remove constraint Place: Ontario Topic Poales Remove constraint Topic: Poales