Ustilago urceolorum var. scirpi Kühn Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Basidiomycota class Ustilaginomycetes order Ustilaginales family Anthracoideaceae genus Anthracoidea species Anthracoidea scirpi Name Homonyms Ustilago urceolorum f. scirpi J.G.Kühn Ustilago urceolorum var. scirpi Kühn