Fungi (Jahn & Jahn, 1959) Class Gymnocarpi Order Hymenothecii Agarici Genus Agaricvs L. (1753), nom. sanct., nom. cons. Section Omphalia Pers. (1801) Maiores, pileo carnoso aut carnoso-membranaceo, margine laeui. Color nigrescens, fuliginosus, cinereus, liuidus, aut subuiolaceus.