Gracilaria dura (C.Agardh) J.Agardh Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Gracilariales family Gracilariaceae genus Gracilaria species Gracilaria dura Name Synonyms Gigartina dura (C.Agardh) Desmazières Gracilaria dura var. lyra J.Agardh, 1842 Sphaerococcus durus C.Agardh, 1822 Sphaerococcus sonderii Kütz., 1849 Homonyms Gracilaria dura (C.Agardh) J.Agardh