You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Mackinaw Twp. Ca. 2½ mi. S. of Mackinaw City. Remove constraint Place: Mackinaw Twp. Ca. 2½ mi. S. of Mackinaw City. Topic Cannabaceae Remove constraint Topic: Cannabaceae Topic Magnoliopsida Remove constraint Topic: Magnoliopsida Topic Rosales Remove constraint Topic: Rosales Type still image Remove constraint Type: still image