You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Cheboygan or Emmet Remove constraint Place: Cheboygan or Emmet Place Vicinity of Burt and Douglass Lakes, Emmet and Cheboygan Counties, Reese's Bog Remove constraint Place: Vicinity of Burt and Douglass Lakes, Emmet and Cheboygan Counties, Reese's Bog Topic Heterodermia Remove constraint Topic: Heterodermia Topic Lichens Remove constraint Topic: Lichens