oxyphototroph prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 stat. inval.
   Class Cyanoprokaryota Komárek & Golubić 1990 nom. nud. - cyanoprokaryotes
     Order Stigonematales Geitler (1925) see Order Nostocales Borzì (1914)
       Family Mastigocladaceae Geitler (1925) see Family Hapalosiphonaceae Elenkin (1917), nom. cons.
         Subfamily Mastigocladoideae see Family Hapalosiphonaceae Elenkin (1917), nom. cons.
           1 Form genus Chondrogloea W. Schmidle (1901) see Genus Chondrogloea Schmidle 1901
           2 Genus Hapalosiphon C. Nägeli ex Bornet & Flahault (1886) see Genus Hapalosiphon Nägeli ex Bornet and Flahault 1886
           3 Genus Mastigocladus F.J. Cohn ex O. Kirchner (1898) see Genus Mastigocladus Cohn ex Kirchner 1898
           4 Form genus Thalpophila Borzì (1907) see Genus Thalpophila Borzì 1907
           5 Genus Umezakia M. Watanabe (1987) see Genus Umezakia Watanabe 1987
           6 Form genus Voukiella Ercegović (1925) see Genus Voukiella Ercegović 1925
           7 Form genus Westiella Borzì (1907) see Genus Westiella Borzì 1907