Syn.: Physcia nigricans (Flörke) Stizenb.

Saxicolous, mainly on artificial, at least slightly calcareous substrata (e.g. disused quarries, concrete posts, gravestones, walls), or corticolous, on old isolated trees with a dust-impregnated bark.

Belgium: Fl.: RR, Camp.: RR, Brab.: RR, Mosan: R, Ard.: AR, Lorr.: R.

Luxembourg: Ard.: R, Lorr.: AR.

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

Lit.: Boul.: 72, La66: 481-482, Mü1: 158, NL87: 22, NL93: 45, VGH: 114, WS: 45-46, 91.