Lichens of Belgium, Luxembourg and northern France
Parmelia omphalodes (L.) Ach. subsp. omphalodes |
On siliceous, natural outcrops, usually in exposed and well-lit conditions.
Belgium: Mosan: RRR, Ard.: RR.
Luxembourg: - .
France: Ard.: RR.
Lit.: La66: 440, NL77: 22.