Syn.: ?C. chlorina var. cyanolepra (Nyl.) Kickx, incl. C. isidiigera Vězda

Corticolous, mainly at the base of old Tilia and Ulmus, and saxicolous, on walls of calcareous or siliceous stones, usually in nitrophilous conditions.

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

Luxembourg: Ard.: RR, Lorr.: R.

France: Lorr.: RR.

The material referred to this species is heterogeneous and includes those specimens previously published from the study area as C. virescens.

Lit.: Ma: 241-244 (sub C. cf. virescens), NL92: 150, NL97: 45, Purvis et al. (1992: 159, sub C. virescens), Van den Broeck et al. (2008).