Pediastrum tetras subsp. tetrapedia (Kirchner) Playfair Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Chlorophyta class Trebouxiophyceae genus Crucigenia species Lemmermannia spec Name Homonyms Pediastrum tetras var. tetrapedia (Kirchner) Playfair Pediastrum tetras subsp. tetrapedia (Kirchner) Playfair