Cladophora arcta Dillwyn Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Chlorophyta class Ulvophyceae order Ulotrichales family Ulotrichaceae genus Acrosiphonia species Acrosiphonia arcta Name Homonyms Cladophora arcta (Dillwyn) Kütz. Cladophora arcta Dillwyn