Calycellina operta Svrek, 1993 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Leotiomycetes order Helotiales family Pezizellaceae genus Calycellina species Calycellina operta Name Homonyms Calycellina operta Svrček Calycellina operta Svrek, 1993