Lichens of Belgium, Luxembourg and northern France
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Caloplaca cirrochroa (Ach.) Th. Fr. |
On hard calcareous rocks, usually in dry, non-nitrophilous and non-exposed conditions, always in natural habitats.
Belgium: Mosan: AC.
Luxembourg: - .
France: Mosan: RRR, Lorr.: RRR.
Lit.: Ertz: 19, Ma: 153-156.