Navicula directa subsp. remota Grunow Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Naviculales family Naviculaceae genus Navicula species Navicula directa Name Homonyms Navicula directa var. remota Cleve Navicula directa subsp. remota Grunow Navicula directa var. remota Grunow, 1879