You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Chihuahua Remove constraint Place: Chihuahua Place Mexico Remove constraint Place: Mexico Place Vicinity of Areponapuchic; slopes of Barranca de Urique. Remove constraint Place: Vicinity of Areponapuchic; slopes of Barranca de Urique. Topic Lycopodiopsida Remove constraint Topic: Lycopodiopsida