Natura - nature
actualia - actual entities
Mundus Plinius - physical world
naturalia - natural bodies
[crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Clade neomura Cavalier-Smith, 1987
Domain Eukaryota Chatton, 1925 - eukaryotes
Clade discaria Cavalier-Smith, 2021
Clade natates Cavalier-Smith, 2021
Clade photaria Cavalier-Smith, 2021
Clade eucorta Cavalier-Smith, 2021
Superkingdom Corticata Lankester, 1878 - corticates
Kingdom Plantae Haeckel (1866) - plants
Subkingdom Viridiplantae Caval.-Sm. (1981) - green plants
Infrakingdom Streptophyta Caval.-Sm. (1993)
[crown] Clade Phragmoplastophyta Lecointre & Le Guyader 2006 [Hall, McCourt, Delwiche, Mishler & Karol 2020]
Phylum Charophytaᵀ Migula (1889) [monotypic]
Order Zygnematales [paraphyletic] - filamentous conjugates and saccoderm desmids
Family Zygnemataceaeᵀ (Meneghini) Kützing (1843) [polyphyletic]
Genus Spirogyra Link (1820), nom. cons.
Spirogyra aequinoctialis
Spirogyra affinis (Hassall) P. Petit
Spirogyra borgeanna
Spirogyra borysthenica Kasanowsky & Smirnov
Spirogyra catenaeformis (Hassall) Kützing
Spirogyra circumlineata
Spirogyra collinsii
Spirogyra communis (Hassall) Kützing
Spirogyra condensata (Vaucher) Kützing
Spirogyra crassa (Kützing) Kützing
Spirogyra daedaleoides
Spirogyra decimina (O.Müll.) Kützing
Spirogyra dubia Kützing
Spirogyra ellipsospora Transeau
Spirogyra fallax
Spirogyra farlowii Transeau
Spirogyra flavescens (Hassall) Kützing
Spirogyra fluviatilis Hilse ex Rabenh.
Spirogyra fuellebornei
Spirogyra gracilis (Hassall) Kützing
Spirogyra gratiana
Spirogyra grevilleana (Hassall) Kützing
Spirogyra inconstans
Spirogyra inflata (Vaucher) Kützing
Spirogyra juergensii Kützing
Spirogyra jugalis Kützing
Spirogyra laxa
Spirogyra longata (Vaucher) Wittrock
Spirogyra majuscula Kützing
Spirogyra maxima (Hassall) Wittrock
Spirogyra micropunctata
Spirogyra mirabilis (Hassall) Kützing
Spirogyra nitida (Dillwyn) Link
Spirogyra novae-angliae
Spirogyra orientalis
Spirogyra porangabae
Spirogyra pratensis
Spirogyra protecta H.C. Wood
Spirogyra pseudofloridana
Spirogyra reflexa
Spirogyra rhizobrachialis
Spirogyra rivularis (Hassall) Rabenh.
Spirogyra scrobiculata
Spirogyra singularis Nordst.
Spirogyra spreeiana Rabenh.
Spirogyra stictica (Engl. Bot.) Wille
Spirogyra subsalsa
Spirogyra suecica Transeau
Spirogyra sulcata
Spirogyra tenuissima (Hassall) Kützing
Spirogyra teodoresci Transeau
Spirogyra triplicata
Spirogyra varians (Hassall) Kützing
Spirogyra weberi
1 Spirogyra porticalisᵀ (O.F.Müll.) Cleve