Sphaerozosma laeve var. latum (West & G.S.West) Kurt Först. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Sphaerozosma species Sphaerozosma laeve Name Homonyms Sphaerozosma laeve var. latum (West & G.S.West) Kurt Först.