Pflanzenreich Haeckel (1866) - plants
   Division Euthallophyta
     Subdivision Euphyceae
       Class Phaeophyceae Hansgirg (1886) - brown algae
         01 Family Ectocarpaceae C.Agardh (1828)
         02 Family Choristocarpaceae Kjellman (1891) see Family Sphacelariaceae Decaisne (1842)
         03 Family Sphacelariaceae Decaisne (1842)
         04 Family Encoeliaceae
         05 Family Striariaceae
         06 Family Desmarestiaceae (Thuret) Kjellman (1880)
         07 Family Dictyosiphonaceae
         08 Family Myriotrichiaceae
         09 Family Elachistaceae
         10 Family Chordariaceae Grev. (1830)
         11 Family Stilophoraceae
         12 Family Spermatochnaceae
         13 Family Sporochnaceae Grev. (1830)
         14 Family Ralfsiaceae Farlow (1881)
         15 Family Laminariaceae Bory (1827)
         16 Family Lithodermataceae
         17 Family Cutleriaceae Griffith & Henfr. (1856)
         18 Family Tilopteridaceae Kjellman (1890)
         19 Family Fucaceae Adans. (1763)