Lichens of Belgium, Luxembourg and northern France

Distribution map of Lecanora muralis (Schreb.) Rabenh.  by Paul Diederich   Lecanora muralis (Schreb.) Rabenh.
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Lecanora muralis – Luxembourg (Lorr.), Lorentzweiler – © 2009 by P. Diederich

Syn.: L. muralis var. versicolor (Pers.) Tuck., Protoparmeliopsis muralis (Schreb.) M. Choisy, Placodium saxicolum (Pollich) Körb.

Saxicolous, on calcareous, natural outcrops in nitrophilous conditions, but most common on walls, roofs and concrete, rarely on lignum or at the base of trees covered by dust, incl. in highly polluted areas.

Belgium: CC.

Luxembourg: CC.

France: CC.

Lit.: Ca: 105, Di: 127-128, Ho: 154, Qu: 91-92, VGH: 114, Sansen & Deronde (1990).

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