Yellow crustose ascomycete lichen

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A crustose yellow ascomycete lichen growing on a rock.  Multiple apothecia are visible.   I believe this may be _Acarospora_ (_Acarospora socialis_?) or _Pleopsidium_, but I'm not sure.   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 crustose yellow ascomycete lichen growing on a rock. Multiple apothecia are visible. I believe this may be _Acarospora_ (_Acarospora socialis_?) or _Pleopsidium_, but I'm not sure. 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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Vasquez Rocks, Lichen
Keywords:
  • 60mm efs
  • California
  • Los Angeles County
  • Vasquez Rocks
  • apothecia
  • closeup
  • crustose
  • fungus
  • lichen
  • macro
  • multiple exposure
  • rock