Syn.: Pannaria rubiginosa (Ach.) Bory var. lanuginosa auct., non (Hoffm.) Zahlbr.

Over saxicolous and corticolous mosses, in humid old forests.

Belgium: Brab.: RR (†<1898), Ard.: RR (†<1896), Lorr.: RRR (1990).

Luxembourg: Lorr.: RRR (†<1850).

France: - .

The only remaining population in the study area (Belgium: Lorr.) is made of three small thalli on two trees.

Lit.: L6: 143-144, Sérusiaux (1984: 84).