[Class] Cyanobacteria "Stanier (1974)", nom. inval. - cyanoprokaryotes see Class Cyanophyceae Hauck (1885)
   Order Chroococcales Ardissone (1887) [paraphyletic] see Order Chroococcales corrig. Ardissone 1887
     Family Microcystaceae Elenkin (1933) see Family Microcystaceae Elenkin 1933
       Genus Microcystis Lemmerm. (1907), nom. cons. see Genus Microcystis Kützing ex Lemmermann 1907 nom. cons.