Studies were undertaken to investigate the mycoflora of two peatbogs of the Białystok Province. In Ihe water of Gorbacz peatbog 20 species were identified and in the Ostrówki-17. Only two, species i.e. <i>Aphanomyces irregularis</i> and <i>Achlya dcbaryana</i>, occurred in both peatbogs.