Grey areolate lichen

Grey areolate lichen

Observation - Grey areolate lichen - UK and Ireland. Description: Grey crustose lichen growing on mountain limestone. Thallus made up of separated areoles each with black disc of immersed apothecium showing. Possibly Aspicilia contorta.

Grey crustose lichen growing on mountain limestone. Thallus made up of separated areoles each with black disc of immersed apothecium showing. Possibly Aspicilia contorta.