Physarum nutans robustum A.Lister Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Protozoa phylum Mycetozoa class Myxomycetes order Physarales family Physaraceae genus Physarum species Physarum robustum Name Homonyms Physarum nutans var. robustum Lister, 1894 Physarum nutans robustum A.Lister