Brown circular foliose lichen

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A circular brown foliose lichen with folds growing on a pinkish rock.  The lichen has numerous black circles (probably apothecia) on its thallus.  My best guess is that this is _Umbilicaria phaea_.  This lichen was found in Vasquez Rocks County Park in Los Angeles County.  The scale bar is 5mm (contact me if you want a version of the image without the scale bar).
A circular brown foliose lichen with folds growing on a pinkish rock. The lichen has numerous black circles (probably apothecia) on its thallus. My best guess is that this is _Umbilicaria phaea_. This lichen was found in Vasquez Rocks County Park in Los Angeles County. The scale bar is 5mm (contact me if you want a version of the image without the scale bar).
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Lichen, Best of 2011, Personal Favorites, Vasquez Rocks
Keywords:
  • 60mm efs
  • California
  • Los Angeles County
  • Vasquez Rocks
  • apothecia
  • closeup
  • foliose
  • fungus
  • lichen
  • macro
  • multiple exposure
  • rock