Calostoma fuscum

''Calostoma fuscum'' is a species of gasteroid fungus in the family Sclerodermataceae. Found in Australia, where it grows mainly in ''Eucalyptus'' forests, it was originally described by Miles Joseph Berkeley in 1839 as ''Mitremyces fuscus''. George Edward Massee transferred it to the genus ''Calostoma'' in 1888.