Hormiscia subtilis var. variabilis (Kütz.) Kirchner Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Chlorophyta class Ulvophyceae order Ulotrichales family Ulotrichaceae genus Ulothrix species Ulothrix tenerrima Name Homonyms Hormiscia subtilis var. variabilis (Kütz.) Kirchner