Aspicilia leprosescens?

Aspicilia leprosescens?

Observation - Aspicilia leprosescens?. Description: A grey crustose lichen testing C- K-; growing on the south-facing side of an acid rock on the seashore. As you can see it is interspersed with Caloplaca marina. With a hand lens the thallus appears granular with minute, sparsely scattered black-centred ‘j

A grey crustose lichen testing C- K-; growing on the south-facing side of an acid rock on the seashore. As you can see it is interspersed with Caloplaca marina. With a hand lens the thallus appears granular with minute, sparsely scattered black-centred ‘jam tart’ apothecia (approximately 0.5mm) with thin white edging.

Picture 1 is the best detail I can get. I’ve tried to get better, but it is just too small for my camera to pick up. Picture 2 shows it on another part of the rock.

I think this might perhaps be Aspicilia leprosescens, but I don’t know for sure.