Lichens of Belgium, Luxembourg and northern France
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Porpidia cinereoatra (Ach.) Hertel & Knoph |
Syn.: Lecidea cinereoatra Ach., Porpidia musiva (Körb.) Hertel & Knoph.
On siliceous rocks, mainly in natural habitats.
Belgium: Ard.: AR.
Luxembourg: Ard.: RRR.
France: Mosan: RRR, Ard.: RRR.
Lit.: L8: 71, Mü1: 143, Mü4: 109, Sé: 138.