Not Physcia, which has a green photobiont. I assume this is wet, because it's so dark blue-grey; hopefully it's light blue-gray when dry. Lobe size is pretty big, and I'm assuming the medulla is P+, so probably not Fuscopannaria. Plus I was there a couple weeks ago; end of the Radio Tower Road?
Ken-ichi Ueda
2014-11-29
2014-11-29 14:56:33
United States of America, California, San Bruno Mountain County Park, San Mateo, California, United States