You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Drummond Island. ¼ mi SE of Cornbeef Jct. (on Sheep Ranch Rd.). Remove constraint Place: Drummond Island. ¼ mi SE of Cornbeef Jct. (on Sheep Ranch Rd.). Topic Diphasiastrum Remove constraint Topic: Diphasiastrum