A revision of the generic limit between Clitocybe and Lepista

Authors: Harmaja, Harri
Journal: Karstenia, Volume 14 (1974), pages 82-92.
Doi: https://doi.org/10.29203/ka.1974.91
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Abstract:  On the basis of various spore characters, some already noted but partly neglected (e.g. cyanophilic spore wall) and some »new», it is concluded that Lepista (Fr.) W. G. Smith (Agaricales) is a valid genus, and independent of Clitocybe (Fr.) Staude. The current concept of Lepista is, however, somewhat altered, since the genus is considered to include species with smooth (under the light microcope) and deep yellow spores. The inclusion of the Clitocybe gilva group in Lepista is also considered justified. The essential characters of the amended genus Lepista are given, of which the strongly cyanophilic spore wall and the presence of a remarkable proportion of collapsed spores are emphasized. It seems that the type of Lepista, viz. Agaricus lepista Fr., can probably be appropriately typified, so that for the fungi concerned the generic name Lepista is thus indeed correct and available. Some other nomenclatural remarks are also made. Two new combinations are made in Lepista, the species in question having previously been referred to Clitocybe (the first of these even being one of the most famous species of that genus): Lepista nebularis (Fr.) Harmaja and Lepista subalpina (Big. & Smith) Harmaja.