Crustose lichen

Crustose lichen

Observation - Crustose lichen - UK and Ireland. Description: mainly grey with some green areas. there was large areas of it on the pavements, especially where privet hedges edged the pavements, don't know if this is relevent. i believe it to be Lecanora muralis

mainly grey with some green areas. there was large areas of it on the pavements, especially where privet hedges edged the pavements, don't know if this is relevent. i believe it to be Lecanora muralis