Gomphonema abbreviatum Ahardh Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Cymbellales family Gomphonemataceae genus Gomphonema species Gomphonema abbreviatum Name Homonyms Gomphonema abbreviatum (Agardh) Kützing, 1833 Gomphonema abbreviatum C.Agardh, 1831 Gomphonema abbreviatum Ahardh