You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Alger Remove constraint Place: Alger 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 Polypodiales Remove constraint Topic: Polypodiales