Claviceps virens M.Sakurai Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Sordariomycetes order Hypocreales family Clavicipitaceae genus Ustilaginoidea species Ustilaginoidea virens Name Homonyms Claviceps virens M.Sakurai ex Nakata Claviceps virens M.Sakurai