Kingdom Plantae Haeckel (1866) - plants Subkingdom Rhodoplantae G.W.Saunders & Hommers. (2004) Phylum Cyanidiophyta Moehn ex Doweld (2001) [monotypic] see Subphylum Cyanidiophytina 1 Class Cyanidiophyceae Merola (1982) [monotypic]