You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Language UND Remove constraint Language: UND Place Algoma Remove constraint Place: Algoma Place On Leach Island Remove constraint Place: On Leach Island Place Ontario Remove constraint Place: Ontario Topic Equisetales Remove constraint Topic: Equisetales Topic Equisetum Remove constraint Topic: Equisetum Topic Polypodiopsida Remove constraint Topic: Polypodiopsida