Lichens of Belgium, Luxembourg and northern France

Distribution map of Placynthium hungaricum Gyeln.  by Paul Diederich   Placynthium hungaricum Gyeln.
Placynthium nigrum »
see legend below picture
Placynthium hungaricum – Belgium (Mosan), Roche Lomme, 2002, Ertz 455 (LG) – © 2004 by Paul Diederich

On exposed, hard calcareous rocks, often along cracks remaining moistened during longer periods.

Belgium: Mosan: AR.

Luxembourg: - .

France: Mosan: RRR.

Lit.: Ertz: 20, L8: 68.

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