Syn.: Opegrapha vulgata var. subsiderella Nyl., O. subsiderella (Nyl.) Arnold, O. dubia Arnold

Corticolous, in humid forests, mainly on Carpinus and Quercus.

Belgium: Mar.: R, Brab.: RR, Mosan: RR, Ard.: RR.

Luxembourg: Ard.: RR, Lorr.: R.

France: Mar.: RRR, Boul.: R, Pic.: RR, Lorr.: RRR.

Lit.: Boul.: 71, DG: 18, Di: 177-178, DSL: 232, Ho: 168, 218, 595, L5: 33, NL84: 16, NL97: 52, Barkman (1990: 14-15).