Lichens of Belgium, Luxembourg and northern France
Placopyrenium trachyticum (Hazsl.) Breuss |
Syn.: Dermatocarpon trachyticum (Hazsl.) Vain.
On a tufa rock, calcareous gravestones and old sandstone walls.
Belgium: Mar.: RR, Fl.: RR, Brab.: RR, Mosan: AR.
Luxembourg: Lorr.: RR.
France: Mar.: RRR; Boul.: RRR, Lorr.: RR.
Lit.: Boul.: 72, L8: 67, Mü4: 109.