MYCOTAXON ISSN (print) 0093-4666 (online) 2154-8889 Mycotaxon, Ltd. ©2020 April–June 2020—Volume 135, pp. 245–274 https://doi.org/10.5248/135.245 Pluteus dianae and P. punctatus resurrected, with first records from eastern and northern Europe Hana Ševčíková1*, Ekaterina F. Malysheva2, Alfredo Justo3, Jacob Heilmann-Clausen4, Michal Tomšovský5 1* Department of Botany, Moravian Museum, Zelný trh 6, CZ-659 37 Brno, Czech Republic 2 Komarov Botanical Institute of the Russian Academy of Sciences, RUS-197376, Saint Petersburg, Russia 3 New Brunswick Museum, 277 Douglas Ave, Saint John, E2K 1E5-NB, Canada 4 Centre for Macroecology, Evolution & Climate, Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark 5 Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemědělská 1, CZ-613 00, Brno, Czech Republic * Correspondence to:
[email protected] Abstract—The type specimens of Pluteus dianae and P. punctatus from the Czech Republic were studied morphologically and molecularly. New collections identified by nrITS sequence analyses extend the distribution of P. dianae to Denmark, European Russia, and the Asian part of Turkey and of P. punctatus to Sweden. The application of these names is discussed; both belong in the P. pl autu s complex, and data on European and North American taxa in this complex are summarised and compared with P. dianae and P. punctatus. Pluteus aestivus is considered a nomen dubium. Key words—Agaricales, Czechia, Pluteaceae, Pluteus sect. Hispidoderma, taxonomy Introduction Pluteus Fr. (Pluteaceae, Agaricales) is an agaricoid genus forming basidiomata characterized by free lamellae, a pinkish spore print, smooth globose to ellipsoid (rarely oblong) basidiospores, an inverse hymenophoral trama, and the presence of cheilocystidia and (often) pleurocystidia (Singer 1986, Vellinga 1990).