Asteroma ulmi Grev. Dataset GBIF Backbone Taxonomy Rank SPECIES Published in (1824). Fl. Edin.: 368. Classification kingdom Fungi phylum Ascomycota class Dothideomycetes order Pleosporales family Didymellaceae genus Piggotia species Piggotia ulmi Name Homonyms Asteroma ulmi Grev. Asteroma ulmi Klotzsch, 1836