[Class] Cyanobacteria "Stanier (1974)", nom. inval. - cyanoprokaryotes see Class Cyanophyceae Hauck (1885)
   Order Nostocales Borzì (1914) see Order Nostocales corrig. Borzì 1914
     Family Hapalosiphonaceae Elenkin (1917), nom. cons. see Family Hapalosiphonaceae Elenkin 1917
       01 Genus Aetokthonos S.B.Wilde & J.R.Johans. (2014) see Genus Aetokthonos Wilde and Johansen 2014
       02 Genus Albrightia Copel. (1936) see Genus Albrightia Copeland 1936
       03 Genus Baradlaia P. Palik (1960) see Genus Baradlaia Palik 1960
       04 Genus Brachytrichiopsis Jao (1944) see Genus Brachytrichiopsis Jao 1944
       05 Genus Chondrogloea W. Schmidle (1901) see Genus Chondrogloea Schmidle 1901
       06 Genus Colteronema Copel. (1936) see Genus Colteronema Copeland 1936
       07 Genus Fischerella (Bornet & Flahault) Gomont (1895) see Genus Fischerella (Bornet and Flahault 1886) Gomont 1895
       08 Genus Fischerellopsis Fritsch (1932) see Genus Fischerella (Bornet and Flahault 1886) Gomont 1895
       09 Genus Geitleria Friedmann (1955) see Genus Geitleria Friedmann 1955
       10 Genus Handeliella Skuja (1937) see Genus Handeliella Skuja 1937
       11 Genus Hapalosiphon C. Nägeli ex Bornet & Flahault (1886) see Genus Hapalosiphon Nägeli ex Bornet and Flahault 1886
       12 Genus Hyphomorpha A. Borzì (1916) see Genus Hyphomorpha Borzì 1916
       13 Genus Leptopogon Borzì (1907) see Genus Leptopogon Borzì 1907
       14 Genus Letestuinema Frémy (1930) see Genus Letestuinema Frémy 1930
       15 Genus Loefgrenia Gomont (1896) see Genus Loefgrenia Gomont 1896
       16 Genus Loriella A. Borzì (1892) see Genus Loriella Borzì 1892
       17 Genus Mastigocladus F.J. Cohn ex O. Kirchner (1898) see Genus Mastigocladus Cohn ex Kirchner 1898
       18 Genus Mastigocoleopsis Geitler (1925) see Genus Mastigocoleopsis Geitler 1925
       19 Genus Mastigocoleus G. Lagerheim ex Bornet & Flahault (1886) see Genus Mastigocoleus Lagerheim ex Bornet and Flahault 1886
       20 Genus Matteia A. Borzì (1907) see Genus Matteia Borzì 1907
       21 Genus Nostochopsis Wood ex Bornet & Flahault (1886) see Genus Nostochopsis Wood ex Bornet and Flahault 1886
       22 Genus Schmidleinema G.De Toni (1936) see Genus Schmidleinema De Toni 1936
       23 Genus Spelaeopogon Borzì (1907) see Genus Spelaeopogon Borzì 1907
       24 Genus Thalpophila Borzì (1907) see Genus Thalpophila Borzì 1907
       25 Genus Westiella Borzì (1907) see Genus Westiella Borzì 1907
       26 Genus Westiellopsis Janet (1941) see Genus Westiellopsis Janet 1941