Lichen Islands

Lichen on a rock along the Highland Valley Trail, San Diego, California, December 2016.

Joe says:

2016/12/30 at 09:51

Has a Christmas look to it.

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1. Alexander S. Kunz says:
  
  2016/12/30 at 09:54
  
  Because of the “red nose” in the center? :-D
  
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