Holarctic Species in the Pluteus romellii Clade. Five New Species Described and Old Names Reassessed

Hana Ševčíková; Ekaterina Malysheva; Giuliano Ferisin; Francesco Dovana; Egon Horak; Jacob Kalichman; Oğuzhan Kaygusuz; Renée Lebeuf; Guillermo Muñoz González; Andrew M Minnis; Stephen D Russell; Michal Sochor; Bálint Dima; Vladimír Antonín; Alfredo Justo

doi:10.3390/jof8080773

Holarctic Species in the Pluteus romellii Clade. Five New Species Described and Old Names Reassessed

J Fungi (Basel). 2022 Jul 25;8(8):773. doi: 10.3390/jof8080773.

Authors

Affiliations

¹ Department of Botany, Moravian Museum, Zelný trh 6, 659 37 Brno, Czech Republic.
² Shatelena Str, 20-75, 194021 St. Petersburg, Russia.
³ Associazione Micologica Bassa Friulana, via Vespucci 7, 33052 Cervignano del Friuli, Italy.
⁴ Via Quargnento, 17, 15029 Solero (AL), Italy.
⁵ Schlossfeld 17, AT-6020 Innsbruck, Austria.
⁶ Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, USA.
⁷ Department of Plant and Animal Production, Atabey Vocational School, Isparta University of Applied Sciences, Isparta 32670, Turkey.
⁸ Renée Lebeuf, 775 Rapide Nord, Saint-Casimir, QC G0A 3L0, Canada.
⁹ Guillermo Muñoz González, C/Tudela, 20, 50650 Gallur, Spain.
¹⁰ Andrew Minnis, USDA-APHIS-PPQ, Seattle Plant Inspection Station 835 S. 192nd St., Suite 1600, SeaTac, WA 98148, USA.
¹¹ The Hoosier Mushroom Society, 3912 S Carey St, Marion, IN 46953, USA.
¹² Centre of the Region Haná for Biotechnological and Agricultural Research, Crop Research Institute, Šlechtitelů 29, 78371 Olomouc, Czech Republic.
¹³ Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117 Budapest, Hungary.
¹⁴ New Brunswick Museum, 277 Douglas Ave., Saint John, NB E2K 1E5, Canada.

Abstract

We studied the taxonomy of Pluteus romellii, and morphologically similar Holarctic species in the /romellii clade of section Celluloderma, using morphological and molecular data (nrITS, TEF1-α). Pluteus romellii is lectotypified and epitypified and accepted as an exclusively Eurasian species. Pluteus lutescens and P. pallescens are considered synonyms of P. romellii. Pluteus fulvibadius is accepted as a related, but separate, North American species. Five species in the /romellii clade are described as new to science: two from North America (P. austrofulvus and P. parvisporus), one from Asia (P. parvicarpus), one from Europe (P. siccus), and one widely distributed across the Holarctic region (P. vellingae). Basidioma size, pileus color, lamellae color, basidiospore size, hymenial cystidia shape and size, habitat and geographical distribution help separate the species described here, but in some instances only molecular data allows for confident identification. The current status of P. californicus, P. melleipes, P. romellii var. luteoalbus, P. splendidus, P. sternbergii and P.sulphureus is discussed.

Keywords: Agaricales; Pluteaceae; phylogeny; sect. Celluloderma; taxonomy.

Grants and funding

The research of H. Ševčíková and V. Antonín receives institutional support of long-term conceptual development of research institutions provided by the Ministry of Culture (Moravian Museum, ref. MK000094862). The work of Bálint Dima was supported by the ELTE Institutional Excellence Program 2020 financed by the National Research, Development and Innovation Office of Hungary (TKP2020-IKA-05). Giuliano Ferisin was supported by the Regional Federation of Mycological Groups of Friuli Venezia Giulia. The research of Ekaterina Malysheva was supported by project No 122011900032-7 of BIN RAS, and all microscopic and molecular studies of specimens were carried out at the Center for collective use of scientific equipment “Cellular and molecular technology of studying plants and fungi”. The work of Oğuzhan Kaygusuz was supported by the project number No. 2021-ILK1-0155 of the Research Fund of the Isparta University of Applied Sciences. Michal Sochor was supported by grant No. RO0418 from the Ministry of Agriculture, the Czech Republic.