Lichens of Belgium, Luxembourg and northern France

Distribution map of Placynthium tremniacum (A. Massal.) Jatta  by Paul Diederich   Placynthium tremniacum (A. Massal.) Jatta
« Placynthium subradiatum
see legend below picture
Placynthium tremniacum – Belgium (Mosan), Ranzinelle, 2002, Ertz 706 (LG) – © 2004 by Paul Diederich

On hard calcareous rocks, mainly on surfaces submitted to periodic flushing.

Belgium: Mosan: R.

Luxembourg: - .

France: - .

The identity of the material reported to this species is problematic and requires future studies.

Lit.: Ertz: 20, L8: 69.

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