Synedra ulna var. genuina A.Mayer Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Fragilariales family Fragilariaceae genus Synedra species Synedra ulna Name Homonyms Synedra ulna var. genuina Kirchner, 1878 Synedra ulna f. genuina Grunow, 1862 Synedra ulna var. genuina A.Mayer Synedra ulna var. genuina Grunow, 1862 Synedra ulna f. genuina Schell, 1883