Lecanora muralis Lecanoraceae
Lecanora muralis

Growth type crustose, placodioid.
Chemical results: K-, C-, P- or P+ yellowish

Very common in urban areas on roof-tiles, concrete, asphalt, pavements and walls. Also found on nutrient-rich bird-perching rocks.

The pale greenish-grey to yellow-grey lobular thallus has clearly lobed outer margins. Numerous apothecia with brown or creamy-brown discs, their margins +/- crenulate when mature.

Similar: Lecanora pruinosa, C+ orange, UV+ orange


Lecanora muralis


Lecanora muralis


Lecanora muralis
Lecanora muralis
Dorset. March 2012, February and April 2013

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