Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Lecanoromycetes O.E. Erikss. & Winka (1997)
       Subclass Ostropomycetidae V. Reeb, Lutzoni & Cl.Roux (2004)
         Order Hymeneliales S. Stenroos, Miądl. & Lutzoni (2014) [monotypic]
           Family Hymeneliaceae Körb. (1855)
             1 Genus Hymenelia Kremp. (1852)
             2 Genus Ionaspis Th.Fr. (1871)
             3 Genus Tremolecia M. Choisy (1953)