Coprinellus mitrinodulisporus, a new species from chamois dung

The genus Coprinellus is re-examined from its establishment, through demotion as a synonym of Coprinus, and up through its current reinstatement. An agaric with a setulose pileus, sphaerocystic veil, and mitriform, nodulose spores has been isolated from chamois dung and, based on morphological data, is regarded as a new species in Coprinellus. The new taxon is compared with morphologically similar Coprinellus species, particularly with those having mitriform spores. Other taxa recently described in Coprinus are transferred to Coprinellus.