Dothidea ulmi Schleich. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Dothideomycetes family Polystomellaceae genus Dothidella species Dothidella ulmi Name Homonyms Dothidea ulmi (C.-J.Duval) Fr. Dothidea ulmi Schleich.