Mainly on twigs of Picea, also corticolous on Pinus, Populus and Salix, once at the base of Vaccinium shrubs.

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

Luxembourg: Ard.: RRR.

France: - .

Lit.: L9: 14, L12: 83, NL97: 23, Aptroot et al. (1998).