Lichens of Belgium, Luxembourg and northern France
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Parmelia ernstiae Feuerer & A. Thell |
Corticolous, usually on roadside trees, also in forests, rarely on natural siliceous rocks.
Belgium: Mosan: AR, Ard.: AR, Lorr.: RR.
Luxembourg: Ard.: RRR, Lorr.: AR.
France: Mosan: RRR.
Lit.: L9: 20-22.