Lichens - Parmelia sulcata/Evernia prunastri

Lichens - Parmelia sulcata/Evernia prunastri

Observation - Lichens - Parmelia sulcata/Evernia prunastri. Description: The patch was about 2 inches across - I'm not sure whether this is just one species.

The patch was about 2 inches across - I'm not sure whether this is just one species.