You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Arizona Remove constraint Place: Arizona Place Dripping Springs, Head of Hermit Creek Canyon, 1200 ft below rim. Remove constraint Place: Dripping Springs, Head of Hermit Creek Canyon, 1200 ft below rim. Place North America Remove constraint Place: North America Topic Bryophyta Remove constraint Topic: Bryophyta Topic Pottiaceae Remove constraint Topic: Pottiaceae Topic Tortula Remove constraint Topic: Tortula