Two new Gymnopus species from the Island of Andros (Kiklades, C. Aegean, Greece)

Abstract

Two new species of Gymnopus from the island of Andros (Kiklades, C. Aegean, Greece) are described and discussed. Gymnopus dysosmus is a uniformly coloured dark brown species with unpleasant garlic smell, similar to that of G. impudicus but differing by the dark basidiocarps, long and slender, almost cylindrical spores and a greenish brown reaction of the pileipellis hyphae with alkali. Gymnopus amygdalisporus shows also a similar but clearer green reaction with alkali, especially of the trama hyphae and it is therefore placed in the sect. Levipedes subsect. Alcalivirentes where it takes a unique position with its dark date-brown to olivaceous pileus, yellowish-brown distant lamellae and broadly ellipsoid to amygdaliform spores.