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 Topic Calypogeia Remove constraint Topic: Calypogeia Topic Jungermanniales Remove constraint Topic: Jungermanniales Topic Marchantiophyta Remove constraint Topic: Marchantiophyta Topic Plantae Remove constraint Topic: Plantae