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 Gull Rock (~1 km west of west end of Manitou Island); on north side of lighthouse Remove constraint Place: Gull Rock (~1 km west of west end of Manitou Island); on north side of lighthouse Topic Magnoliopsida Remove constraint Topic: Magnoliopsida