You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Laurel Hill Summit, 1½ miles from Jennerstown Remove constraint Place: Laurel Hill Summit, 1½ miles from Jennerstown Place Pennsylvania Remove constraint Place: Pennsylvania Place USA Remove constraint Place: USA Topic Geocalycaceae Remove constraint Topic: Geocalycaceae Topic Jungermanniopsida Remove constraint Topic: Jungermanniopsida Topic Marchantiophyta Remove constraint Topic: Marchantiophyta