Helotium virgultorum var. flavescens Stev. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Ascomycota class Leotiomycetes order Helotiales family Helotiaceae genus Hymenoscyphus species Hymenoscyphus calyculus Name Homonyms Helotium virgultorum var. flavescens Stev. Helotium virgultorum var. flavescens (Holmsk.) Berk.