Opegrapha calcarea
Description
Very variable, thallus thin, white or grey to pale pink or rust, usually more or less immersed in the substrate surface; fruit bodies irregularly nodular to slit-like, branched or stellate, lirellate apothecia. Part of a difficult group commonly requiring microscopic examination of the spores for accurate identification.
Identification difficulty

Habitat
Often on limestone rocks or mortar, but can be found on other types of rock.
When to see it
All year round.
UK Status
Widespread in Britain, particularly common in coastal areas.
VC55 Status
Status in Leicestershire and Rutland not known.
Leicestershire & Rutland Map
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MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015