Leucostoma niveum (Hoffman) Défago, 1935 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Sordariomycetes order Diaporthales family Valsaceae genus Cytospora species Cytospora nivea Name Homonyms Leucostoma niveum (Hoffman) Défago, 1935 Leucostoma niveum (Hoffm.) Höhn.