Physarum cinereum f. ecalcaratum L.F.Celak., 1893 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Protozoa phylum Mycetozoa class Myxomycetes order Physarales family Physaraceae genus Physarum species Physarum cinereum Name Homonyms Physarum cinereum f. ecalcaratum L.F.Celak., 1893 Physarum cinereum ecalcaratum L.F.Celak, 1893