New Species for Regional Mycobiotas of Russia. 8. Report 2023

A total of 83 fungal species including one ascomycete (Helvella macropus) and 82 basidiomycete species have been recorded for the first time from 18 administrative regions of Russia: Republic of Buryatia (2), Republic of Dagestan (7), Republic of Mordovia (30), Republic of Tyva (6), Primorsky Krai (1), Zabaykalsky Krai (3), Arkhangelsk Oblast (5), Irkutsk Oblast (4), Kaluga Oblast (1), Leningrad Oblast (1), Murmansk Oblast (7), Nizhny Novgorod Oblast (1), Novgorod Oblast (3), Novosibirsk Oblast (2), Pskov Oblast (1), Tyumen Oblast (10), Saint Petersburg Federal City (1), and Khanty-Mansi Autonomous Okrug (1 species). An annotated species list containing the data on locality, substrate, habitat type, date of collection, and voucher numbers is provided. Pluteus vellingae is reported as the first record in Russia. Aurantiporus priscus, Bolbitius sibiricus, and Mycopan scabripes are recorded in Russia for the second time. Hypsizygus marmoreus is reported for the third time. New data on little-collected fungal species such as Botryobasidium botryoideum, Fibrodontia gossypina, Lycoperdon rupicola, Neohypochnicium cremicolor, Postia luteocaesia, Psathyrella gordonii, and Xylodon pruinosus, is presented. Complete sequences of ITS1–5.8S–ITS2 nuclear ribosomal DNA for 16 species reported have been generated and submitted to the GenBank database.