organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Eukaryota Chatton, 1925 - eukaryotes
     Kingdom Fungi R.T.Moore (1980) - fungi
       Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes
         Class Urediniomycetes D. Hawksw., B. Sutton & Ainsw. (1995), nom. inval. see Subphylum Pucciniomycotina R. Bauer, Begerow, J.P. Samp., M. Weiss & Oberw. (2006)
           Order Uredinales G.Winter (1880) - rust fungi see Order Pucciniales Clem. & Shear (1931)
             Family Phragmidiaceae Corda (1837)
               01 Genus Arthuriomyces Cummins & Y. Hirats. (1983)
               02 Genus Frommeëlla Cummins & Y. Hirats. (1983) see Genus Phragmidium Link (1816)
               03 Genus Gerwasia Racib. (1909)
               04 Genus Gymnoconia Lagerh. (1894)
               05 Genus Hamaspora Körn. (1877)
               06 Genus Joerstadia Gjaerum & Cummins (1982)
               07 Genus Kuehneola Magnus (1898)
               08 Genus Phragmidium Link (1816)
               09 Genus Trachyspora Fuckel (1861)
               10 Genus Xenodochus Schltdl. (1826)