Psathyrella caespitosa (Peck) A.H.Sm. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Agaricales family Psathyrellaceae genus Psathyrella species Psathyrella caespitosa Name Homonyms Psathyrella caespitosa Weholt Psathyrella caespitosa (Peck) A.H.Sm.