The thallus is very thin to absent so the apothecia appear scattered on the substrate. The apothecia have thick, whitish margins which are often weakly crenulate and the discs within are pale brown.
Lecanora hagenii is very similar but this species grows on wood, not stone.
Occurs in urban and rural locations on a wide range of nutrient rich basic substrates, usually stone or concrete.
All year round
Widespread and common in Britain.
Common in Leicestershire and Rutland.
Leicestershire & Rutland Map
Enter a town or village to see local records
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015