[Pflanzenreich] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phycobionta
     Division Chromophyta T.A.Chr. (1962), nom. nud. see Division Chromophyta T.A.Chr. (1990)
       1 Class Chrysophyceae Fritsch (1927)
       2 Class Xanthophyceae P. Allorge ex Fritsch (1935) - yellow-green algae
       3 Class Bacillariophyceae Haeckel (1878) - pennates
       4 Class Phaeophyceae Hansgirg (1886) - brown algae