Crustose on Oak Tree Bark

Crustose on Oak Tree Bark

Observation - Crustose on Oak Tree Bark . Description: Another crustose lichen I found whilst undertaking the Opal air survey. This I found on the bark of an old Oak tree near a moat at the back of the chuchyard.

Another crustose lichen I found whilst undertaking the Opal air survey.
This I found on the bark of an old Oak tree near a moat at the back of the chuchyard.