? Diplotomma alboatrum

? Diplotomma alboatrum

Observation - ? Diplotomma alboatrum. Description: grey crustose lichen, multiple black apothecia domed shape without rims, variable sizes but very obvious, ones in this picture estimate 1-2mm

grey crustose lichen, multiple black apothecia domed shape without rims, variable sizes but very obvious, ones in this picture estimate 1-2mm