Polyozosia semipallida (H. Magn.) S.Y. Kondr., Lökös & Farkas forme nitrophile sur ciment. = Myriolecis semipallida forme nitrophile sur ciment.

    This very nitrophilous taxon differs from the type by its very bright colored chemical reactions on the thallus and the apothecia: C+/- yellow, K+ yellow, KC+ yellow, P-. and its occuring on cement walls in areas highly polluted by ammonia derivatives (pigsties).