Polyphysa pusilla (M.A.Howe) E.Sosa, 1985 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Chlorophyta class Ulvophyceae order Dasycladales family Polyphysaceae genus Parvocaulis species Parvocaulis pusillus Name Homonyms Polyphysa pusilla (M.Howe) S.Berger & Kaever, 1992 Polyphysa pusilla (M.A.Howe) E.Sosa, 1985