Lichens of Belgium, Luxembourg and northern France

Distribution map of Porpidia contraponenda (Arnold) Knoph & Hertel  by Paul Diederich   Porpidia contraponenda (Arnold) Knoph & Hertel
« Porpidia cinereoatraPorpidia crustulata »

On natural, siliceous outcrops or on slate debris in disused quarries.

Belgium: Ard.: AR.

Luxembourg: - .

France: - .

Lit.: L8: 70.

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