Cymbella ventricosa var. ovata (Grun.) Cleve Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Cymbellales family Cymbellaceae genus Encyonema species Encyonema caespitosum Name Homonyms Cymbella ventricosa var. ovata (Grun.) Cleve Cymbella ventricosa var. ovata Grunow Cymbella ventricosa var. ovata Prescott, 1976