Lichens of Belgium, Luxembourg and northern France
|Caloplaca pyracea (Ach.) Th. Fr.|
Corticolous, mainly on old stems and branches of Populus, more rarely on Sambucus or Tilia, one on a calcareous wall.
Belgium: Fl.: RRR, Camp.: RRR, Mosan: RR.
Luxembourg: Lorr.: RR.
France: - .
Lit.: L12: 81.
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