You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Alger Remove constraint Place: Alger Place Cusino and vicinity [i.e., vicinity of Shingleton, Alger Co.] Remove constraint Place: Cusino and vicinity [i.e., vicinity of Shingleton, Alger Co.] Place Michigan Remove constraint Place: Michigan Topic Equisetaceae Remove constraint Topic: Equisetaceae Topic Equisetum Remove constraint Topic: Equisetum Topic Polypodiopsida Remove constraint Topic: Polypodiopsida