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Smooth Rock Tripe - Umbilicaria mammulata Large foliose lichen that was greenish brown on top and black underneath. They ranged in size from 5-10 cm. When weather conditions are dry, this lichen turns brown as you can see in this shot. When wet, it turns green.   The brown zigzags on this lichen are damage done by slugs. Fall,Geotagged,Smooth Rock Tripe,Umbilicaria,Umbilicaria mammulata,United States,lichen,tripe Click/tap to enlarge

Smooth Rock Tripe - Umbilicaria mammulata

Large foliose lichen that was greenish brown on top and black underneath. They ranged in size from 5-10 cm. When weather conditions are dry, this lichen turns brown as you can see in this shot. When wet, it turns green. The brown zigzags on this lichen are damage done by slugs.

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''Umbilicaria mammulata'', or Smooth Rock Tripe, is a foliose lichen found on boulders and rock walls.

Similar species: Umbilicariales
Species identified by Christine Young
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By Christine Young

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Uploaded Feb 7, 2018. Captured Dec 2, 2017 14:12 in 80 Main St, Sharon, CT 06069, USA.
  • Canon EOS 60D
  • f/5.0
  • 1/83s
  • ISO400
  • 100mm