[Division] Thallophyta Endl. (1836)
   1 [Class] Myxomycetes Link (1833) see Class Myxomycetes Link, 1833
   2 [Family] Diatomaceæ Dumort. (1822) see Family Fragilariaceae Grev. (1833)
   3 [Subdivision] Schizophyta
   4 [Subdivision] Algæ see Subdivision Euphyceae
   5 [Subdivision] Fungi (Jahn & Jahn, 1959)