Lepraria rigidula?

Lepraria rigidula?

Observation - Lepraria rigidula? - UK and Ireland. Description: Not sure if my suggestion is correct so any comments will be great, thanks. Thallus, a pale-green seems to be growing over a Physcia sp. (I don't think it is actually part of the Physcia sp.), found growing on a wooden post.

Not sure if my suggestion is correct so any comments will be great, thanks. Thallus, a pale-green seems to be growing over a Physcia sp. (I don't think it is actually part of the Physcia sp.), found growing on a wooden post.