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]
           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 Chromista Caval.-Sm. (1981) - chromists
                           Subkingdom Harosa Cavalier-Smith, 2010
                             Clade Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
                               Infrakingdom Halvaria Cavalier-Smith, 2010
                                 Superphylum Heterokonta Caval.-Sm. (1986)
                                   Phylum Ochrophyta Caval.-Sm. (1995)
                                     Subphylum Phaeista Caval.-Sm. (1995)
                                       Infraphylum Marista Caval.-Sm. (2006)
                                         Superclass Fucistia Caval.-Sm. (1995)
                                           Class Phaeophyceae Hansgirg (1886) - brown algae
                                             Order Sphacelariales Migula (1908)
                                               Family Sphacelariaceaeᵀ Decaisne (1842)
                                                 Genus Sphacelariaᵀ H.C. Lyngbye (1819)
                                                   Sphacelaria brachygonia Mont. (1843)
                                                   Sphacelaria mirabilis (Reinke ex Batters) Prud'homme van Reine (1982)
                                                   Sphacelaria plumula Zanardini (1865)
                                                   Sphacelaria reticulata Lyngbye (1818)
                                                   Sphacelaria rigidula Kütz. (1843)
                                                   Sphacelaria solitaria Kylin (1947)
                                                   Sphacelaria tsengii S.G.A. Draisma, Y.-S. Keum, W.F. Prud'homme van Reine & G.M. Lokhorst (1998)
                                                   1.1.1 Sphacelaria fusca (Huds.) Gray (1821)
                                                   1.1.2 Sphacelaria didichotoma Saunders
                                                   1.2 Sphacelaria californica Sauvageau
                                                   1.3.1 Sphacelaria yamadae Segawa
                                                   1.3.2 Sphacelaria tribuloides Meneghini (1840)
                                                   2 Sphacelaria cirrosaᵀ (Roth) C.Agardh (1824)
                                                   n.0 [Subgenus Sphacelaria subg. Propagulifera] see Genus Sphacelaria H.C. Lyngbye (1819)
                                                   n.1.1 [Sphacelaria pulvinata Hook.f. & Harvey] see Herpodiscus pulvinatus (Hook.f. & Harvey) S.G.A. Draisma et al. (2010)
                                                   n.1.2 [Sphacelaria spuria Sauvageau] see Herpodiscus spurius (Sauvageau) S.G.A. Draisma et al. (2010)
                                                   n.1.3 [Sphacelaria bracteata (Reinke) Sauvageau] see Herpodiscus bracteatus (Reinke) S.G.A. Draisma et al. (2010)
                                                   n.2 [Sphacelaria plumosa Lyngbye (1819)] see Chaetopteris plumosa (Lyngbye) Kützing
                                                   n.3.1 [Sphacelaria racemosa Grev. (1824)] see Battersia racemosa (Grev.) S.G.A. Draisma et al. (2010)
                                                   n.3.2 [Sphacelaria arctica Harvey (1858)] see Battersia arctica (Harvey) S.G.A. Draisma et al. (2010)
                                                   n.3.3 [Sphacelaria plumigera Holmes ex Hauck (1884)] see Battersia plumigera (Holmes ex Hauck) S.G.A. Draisma et al. (2010)
                                                   n.4 [Sphacelaria nana Nägeli ex Kützing (1855)] see Sphacelorbus nanus (Nägeli ex Kützing) S.G.A. Draisma et al. (2010)
                                                   n.5 [Sphacelaria disticha Vahl ex Lyngbye] see Halopteris filicina (Grateloup, 1806) F.T. Kützing (1843)
                                                   n.6 [Sphacelaria radicans (Dillwyn, 1809) C.Agardh (1824)] see Protohalopteris radicans (Dillwyn, 1809) S.G.A. Draisma et al. (2010)
                                                   n.7 [Sphacelaria caespitula Lyngbye (1819)] see Sphaceloderma caespitula (Lyngbye, 1819) S.G.A. Draisma et al. (2010)