Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Rozellomycota Doweld (2013)
     Class Microsporidea Corliss & Levine, 1963
       Order Glugeida Issi, 1986
         Family Unikaryonidae Sprague, 1977
           Genus Larssoniella Weiser & David, 1997
             1 Larssoniella resinellaeᵀ Weiser & David, 1997
             2 Larssoniella duplicati J.Weiser, J.Holuša & Z.Žižka, 2006