Russula cyanoxantha var. cremeoalba Derbsch & Schmitt Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Russulales family Russulaceae genus Russula species Russula cyanoxantha Name Homonyms Russula cyanoxantha var. cremeoalba Derbsch & Schmitt