Lichens of Belgium, Luxembourg and northern France
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Arthonia calcarea (Sm.) Ertz & Diederich |
Syn.: Opegrapha calcarea Sm., O. chevallieri Leight.
On maritime sandstone rocks and walls, and on calcareous, natural outcrops.
Belgium: Mar.: R, Fl.: R, Camp.: RR, Mosan: RR.
Luxembourg: - .
France: Mar.: R.
Lit.: Boul.: 63, DG: 18, La69: 100, NL77: 22, Van den Broeck et al. (2008).