Syn.: Leproplaca xantholyta (Nyl.) Harm.

On calcareous and sandstone rocks, always in shaded, natural habitats, usually on vertical surfaces.

Belgium: Mosan: AR, Lorr.: RRR.

Luxembourg: Lorr.: RR.

France: Lorr.: RRR.

Lit.: Ertz: 19, Ma: 252-254.