Scytosiphon intestinalis var. nematodes Wallroth, 1833 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Chlorophyta class Ulvophyceae order Ulvales family Ulvaceae genus Ulva species Ulva intestinalis Name Homonyms Scytosiphon intestinalis var. nematodes Wallroth, 1833