Parmelia lichen?

Parmelia lichen?

Observation - Parmelia lichen? - UK and Ireland. Description: Foliose lichen with large flat greyish lobes, brown under and numerous white spots over whole surface. On sloping east-facing wooden fence rail. Was hiding under ?Evernia lichen.

Foliose lichen with large flat greyish lobes, brown under and numerous white spots over whole surface. On sloping east-facing wooden fence rail. Was hiding under ?Evernia lichen.