Lichens of Belgium, Luxembourg and northern France
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Heteroplacidium compactum (A. Massal.) Gueidan & Cl. Roux |
Syn.: Verrucaria compacta (A. Massal.) Jatta
On well-lit, exposed, calcareous, natural outcrops.
Belgium: Mosan: AR.
Luxembourg: - .
France: - .
Lit.: Ertz: 41, NL87: 23, NL97: 57.