Thallus is pale grey or brownish when dry but becomes greener when wet, usually coarsely pruinose. Fan-shaped, overlapping lobes, under surface whitish with pale, simple rhizines (only Physconia species with pale rhizines). Granular soralia may spread to cover the thallus centre. Apothecia are rare.
Found on nutrient-rich and often dusty, rocks, cement and trees.
All year round.
Widespread and fairly frequent in Britain.
Fairly frequent in Leicestershire and Rutland.
Leicestershire & Rutland Map
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