Phytophthora fagi R.Hartig, 1876 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Oomycota class Peronosporea order Peronosporales family Peronosporaceae genus Phytophthora species Phytophthora cactorum Name Homonyms Phytophthora fagi R.Hartig, 1876 Phytophthora fagi (R.Hartig) Magnus