Grey or greeny-grey, powdery, crustose lichen. Typically has a ragged edge to the thallus due to mycelia growing outwards.
Grows on dry surfaces of rocks or dry walls of buildings.
All year round.
Widespread and fairly frequent in Britain.
Status in Leicestershire and Rutland not known.
Leicestershire & Rutland Map
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Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015