Unidentified Lichen

Unidentified Lichen

Observation - Unidentified Lichen - UK and Ireland. Description: On Oak. I think the left-hand lichen is Parmelia sulcata (though very, very possibly wrong!) and I have no idea about the right-hand one.

On Oak. I think the left-hand lichen is Parmelia sulcata (though very, very possibly wrong!) and I have no idea about the right-hand one.