Didymium melanopus var. clavus (Alb. & Schwein.) Fr., 1829 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Protozoa phylum Mycetozoa class Myxomycetes order Physarales family Didymiaceae genus Didymium species Didymium clavus Name Homonyms Didymium melanopus var. clavus (Alb. & Schwein.) Fr., 1829 Didymium melanopus var. clavus (Alb. & Schwein.) Wallr., 1833 Didymium melanopus clavus (Alb. & Schwein.) Fr., 1829