Syn.: L. subfuscata H. Magn., L. subfusca auct., non (L.) Ach., incl. L. subrugosa Nyl.

Corticolous, in forests (on Carpinus, Fagus, Quercus), and on isolated trees (Acer, Fraxinus, Populus).

Belgium: Mar.: AR, Fl.: RRR, Brab.: R, Mosan: AR, Ard.: AR, Lorr.: AR.

Luxembourg: Ard.: AR, Lorr.: AC.

France: Boul.: AR, Pic.: R, Lorr.: R.

The specimens called L. subrugosa mainly occur on the bark of Quercus; following Lumbsch & Feige (1996: 261), they represent an extreme morphological variant of L. argentata caused by the substrate.

Lit.: Boul.: 69, Di: 120, 136, Ho: 117, 155, 157, 590, NL84: 14, 15.