Unidentified Lichen of Central Washington #4
possibly Rhizoplaca melanophtalma ?
Can you help verify the identity of this lichen?
An unidentified lichen (Rhizoplaca melanophtalma ?) on large boulders at the eastern base of Steamboat Rock, Steamboat Rock State Park............June 1, 2013. These boulders appear to be granitic, possibly glacial erratics dropped when icebergs became stranded at this location during one of the prehistoric Bretz floods.