Physma byrsaeum f. hypomelaenum (Nyl.) Hue, 1906 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Peltigerales family Pannariaceae genus Physma species Physma byrsaeum Name Synonyms Collema byrsaeum f. hypomelaenum Nyl., 1859 Physma byrsinum f. hypomelaenum (Nyl.) Hue, 1906 Homonyms Physma byrsaeum f. hypomelaenum (Nyl.) Hue, 1906