Gayralia oxysperma f. wittrockii (Bornet) P.C.Silva, 1996 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Chlorophyta class Ulvophyceae order Ulvales family Gayraliaceae genus Gayralia species Gayralia oxysperma Name Homonyms Gayralia oxysperma f. wittrockii (Bornet) P.C.Silva, 1996 Gayralia oxysperma subsp. wittrockii (Bornet) P.C.Silva, 1996