Gomphonema tregestinum (Grunow) Fricke Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Cymbellales family Gomphonemataceae genus Gomphonema species Gomphonema tergestinum Name Homonyms Gomphonema tregestinum (Grunow) Fricke