Syn.: P. nitens (Anders) Gyeln.

On mosses over calcareous or sandstone rocks, or more rarely at the base of trees, always in forest conditions.

Belgium: Brab.: RRR (†1886), Mosan: RR (†1968), Ard.: RR (†1965), Lorr.: RR (†1964).

Luxembourg: Lorr.: RR (†1979).

France: - .

Now extinct throughout the area of study.

Lit.: Diederich (1985a: 24), Ertz & Duvivier (2006: 54-55), Goffinet et al. (1995: 190-191).