Cronartium asclepiadeum var. quercuum Cooke Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Basidiomycota class Pucciniomycetes order Pucciniales family Cronartiaceae genus Cronartium species Cronartium quercuum Name Homonyms Cronartium asclepiadeum var. quercuum Berk. Cronartium asclepiadeum subsp. quercuum Berk., 1874