Lichens of Belgium, Luxembourg and northern France

Distribution map of Rhizocarpon polycarpum (Hepp) Th. Fr.  by Paul Diederich   Rhizocarpon polycarpum (Hepp) Th. Fr.
« Rhizocarpon petraeumRhizocarpon reductum »

On siliceous rocks, either in natural conditions or on slate debris in disused quarries.

Belgium: Ard.: RR.

Luxembourg: - .

France: - .

Lit.: Mü1: 144, NL87: 23, Sé: 139.

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