Lichens of Belgium, Luxembourg and northern France

Distribution map of Lecanora umbrina (Ach.) A. Massal.  by Paul Diederich   Lecanora umbrina (Ach.) A. Massal.
« Lecanora symmictaLecanora varia »

Corticolous on eutrophicated bark, rarely in forest on Quercus, exceptionally on lignum.

Belgium: Mar.: RR, Fl.: RRR, Camp.: RR, Ard., Lorr.: AR.

Luxembourg: Lorr.: AR.

France: Lorr.: RR.

The differences between this species and the mainly saxicolous L. dispersa have to be studied further.

Lit.: Di: 138, DSL: 240, Ho: 139, 151, Mü1: 152.

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