You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Canada Remove constraint Place: Canada Place Essa Twp; lot 19, conc. 9; 6 mi. SW of Barrie Remove constraint Place: Essa Twp; lot 19, conc. 9; 6 mi. SW of Barrie Place Ontario Remove constraint Place: Ontario Topic Diphasiastrum Remove constraint Topic: Diphasiastrum Topic Lycopodiopsida Remove constraint Topic: Lycopodiopsida