Lichens of Belgium, Luxembourg and northern France

Distribution map of Physcia dimidiata (Arnold) Nyl. © by Paul Diederich   Physcia dimidiata (Arnold) Nyl.
« Physcia clementeiPhyscia dubia var. dubia »
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Physcia dimidiata – Belgium (Ard.), La Roche-en-Ardenne, 1962, Lambinon 62/1544 (LG) – © 2004 by Paul Diederich

On exposed and nitrophilous siliceous rocks, also on artificial substrates, especially old walls.

Belgium: Brab.: RRR (1962), Mosan: RRR, Ard.: RR.

Luxembourg: Ard.: RR.

France: - .

Lit.: La66: 477, Diederich (1985a: 25), Kuborn & Diederich (2008).

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