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 Plantae Haeckel (1866) - plants
                           Subkingdom Viridiplantae Caval.-Sm. (1981) - green plants
                             Phylum Chlorophyta Pascher (1914) [coordinate rank] - green algae
                               "core chlorophytes"
                                 Class Ulvophyceae K.R. Mattox & K.D. Stewart (1984) - ulvophytes
                                   Order Bryopsidales J.H.Schaffn. (1922)
                                     Family Udoteaceae J.Agardh
                                       Genus Penicillus J.B. de Lam. (1813)
                                         1 Penicillus capitatus Lam. (1813)
                                         2 Penicillus comosus P.L. Crouan & H.M. Crouan
                                         3 Penicillus dumentosus (J.V.F. Lamouroux, 1816) H.M.D. de Blainville (1830)
                                         4 Penicillus lamourouxii Decaisne
                                         5 Penicillus manaarensis V. Krishnamujrthy & Thomas
                                         6 Penicillus nodulosus (J.V.Lamour.) Blainville
                                         7 Penicillus pyriformis A.Gepp & E.S. Gepp
                                         8 Penicillus sibogae A.Gepp & E.S. Gepp