Lichens of Belgium, Luxembourg and northern France
Muellerella erratica (A. Massal.) Hafellner & V. John |
Syn.: Muellerella pygmaea var. athallina (Müll. Arg.) Triebel.
Lichenicolous, on the thallus of Aspicilia calcarea, Caloplaca variabilis, Lecanora albescens, L. campestris, Lecidella stigmatea, Porpidia macrocarpa, P. sp. and Protoblastenia rupestris.
Belgium: Mar.: RRR, Mosan: RR, Ard.: RRR.
Luxembourg: Lorr.: RR.
France: Pic.: RRR, Mosan: RRR, Lorr.: RRR.
Lit.: L8: 52-53.