Cosmarium pseudopyramidatum subsp. stenonotum Nordst., 1876 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium pyramidatum Name Homonyms Cosmarium pseudopyramidatum var. stenonotum Nordst. Cosmarium pseudopyramidatum subsp. stenonotum Nordst., 1876 Cosmarium pseudopyramidatum var. stenonotum (Nordst.) West & G.S.West, 1905