[Division] Thallophyta Endl. (1836)
   [Class] Myxomycetes Link (1833) see Class Myxomycetes Link, 1833
     1 Subclass Phytomyxinæ T. Macbr. (1899)
     2 Subclass Exosporeæ T. Macbr. (1899) see Subclass Exosporeae Rostafinski, 1873
     3 Subclass Myxogastres T. Macbr. (1899) - saprophytic slime-moulds see Subclass Myxogastria Fries, 1829