Litosiphon pusillus Carmichael ex W J Hooker Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Ectocarpales family Chordariaceae genus Litosiphon species Litosiphon laminariae Name Homonyms Litosiphon pusillus (Carm.) Harv. Litosiphon pusillus Carmichael Litosiphon pusillus Carmichael ex W J Hooker