You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Sharon Twp.; Sharon Hollow; sect. 29. Remove constraint Place: Sharon Twp.; Sharon Hollow; sect. 29. Place USA Remove constraint Place: USA Topic Dryopteris Remove constraint Topic: Dryopteris Topic Plantae Remove constraint Topic: Plantae Topic Polypodiopsida Remove constraint Topic: Polypodiopsida