You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Cheboygan Remove constraint Place: Cheboygan Place Douglas Lake, at the "dropoff" near Faculty Row, U. M. B. S. Remove constraint Place: Douglas Lake, at the "dropoff" near Faculty Row, U. M. B. S. Place North America Remove constraint Place: North America Topic Plantae Remove constraint Topic: Plantae Topic Potamogeton Remove constraint Topic: Potamogeton