Physarum caespitosum Schwein., 1832 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Protozoa phylum Mycetozoa class Myxomycetes order Physarales family Physaraceae genus Physarum species Physarum virescens Name Homonyms Physarum caespitosum Peck, 1874 Physarum caespitosum Schwein., 1832