Boletus albidus var. constrictus Bolton Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Boletales family Boletaceae genus Caloboletus species Caloboletus radicans Name Homonyms Boletus albidus var. constrictus Bolton ex Pers. Boletus albidus var. constrictus Bolton