Uredo populina var. betulina Pers. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Basidiomycota class Pucciniomycetes order Pucciniales family Pucciniastraceae genus Melampsoridium species Melampsoridium betulinum Name Homonyms Uredo populina subsp. betulina Pers. Uredo populina var. betulina Pers.