Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 2024
             Kingdom Bacillatiᵀ (Gibbons and Murray 1978) Oren and Göker 2024
               [Phylum Cyanobacteria Garcia-Pichel et al. (2020)] see Phylum Cyanobacteriota Oren et al. 2022
                 [Class Cyanophyceae Hauck (1885)] see Class Chroococcophyceae Hollerbach et al. 1953
                   [Order Nostocales Borzì (1914)] see Order Nostocales corrig. Borzì 1914
                     [Family Stigonemataceae Borzì (1892), nom. cons.] see Family Stigonemataceae corrig. (Agardh ex Bornet and Flahault 1886) Borzì 1892 nom. cons.
                       [Genus Camptylonema W. Schmidle (1900), nom. illeg.] see Genus Schmidleinema G.De Toni (1936)
                       1 ?[Genus Cyanobotrys L. Hoffmann (1991), nom. illeg.] see Genus Cyanobotrys Hoffmann 1991 nom. illeg.
                       2 ?[Genus Doliocatella Geitler (1933)] see Genus Doliocatella Geitler 1933
                       3 ?[Genus Homoeoptyche H. Skuja (1944)] see Genus Homoeoptyche Skuja 1944
                       4 ?[Genus Pulvinularia Borzì (1916)] see Genus Pulvinularia Borzì 1916
                       5 [Genus Stigonemaᵀ C.Agardh ex Bornet & Flahault (1886)] see Genus Stigonema Agardh ex Bornet and Flahault 1886