Possible Lecidella on young oak

Possible Lecidella on young oak

Observation - Possible Lecidella on young oak - UK and Ireland. Description: Various degrees of enlargement of the same example. In the first image, the specimen is to the left, and the right hand lichen is probably a different species (Arthronia?)

Various degrees of enlargement of the same example. In the first image, the specimen is to the left, and the right hand lichen is probably a different species (Arthronia?)