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 Alger Remove constraint Place: Alger Place North America Remove constraint Place: North America Place Rock River Falls, below; ca 7 mi WSW of Au Train. Remove constraint Place: Rock River Falls, below; ca 7 mi WSW of Au Train. Place USA Remove constraint Place: USA Topic Polypodium Remove constraint Topic: Polypodium