Lichens of Belgium, Luxembourg and northern France
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Placopyrenium trachyticum var. subtrachyticum (B. de Lesd.) Breuss |
Syn.: Catapyrenium subtrachyticum B. de Lesd.
On calcareous stones of a wall.
Belgium: - .
Luxembourg: - .
France: Mar.: RRR (1902) (type locality).
Lit.: BDL1: 232, Breuss (1990: 144), Breuss (2009).