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 "Aphanizomenonaceae" Elenkin (1938), orth. inval.] see Family Aphanizomenaceae corrig. Elenkin 1938 [Genus Trichormus (J. Ralfs ex Bornet & Flahault) Komárek & Anagn. (1989)] see Genus Trichormus (Ralfs ex Bornet and Flahault 1886) Komárek and Anagnostidis 1989 Trichormus azollae (E.A. Strasburger ex Wittrock et al.) J. Komárek and K. Anagnostidis 1989 Trichormus variabilis (F.T. Kützing ex E. Bornet and C. Flahault 1888) J. Komárek and K. Anagnostidis 1989