Holarctic Species in the Pluteus podospileus Clade: Description of Six New Species and Reassessment of Old Names

Hana Ševčíková; Ekaterina F Malysheva; Vladimír Antonín; Jan Borovička; Francesco Dovana; Giuliano Ferisin; Guillaume Eyssartier; Django Grootmyers; Jacob Heilmann-Clausen; Jacob Kalichman; Oğuzhan Kaygusuz; Renée Lebeuf; Guillermo Muñoz González; Andrew M Minnis; Stephen D Russell; Irja Saar; Ida Broman Nielsen; Tobias Guldberg Frøslev; Alfredo Justo

doi:10.3390/jof9090898

Holarctic Species in the Pluteus podospileus Clade: Description of Six New Species and Reassessment of Old Names

J Fungi (Basel). 2023 Aug 31;9(9):898. doi: 10.3390/jof9090898.

Authors

Hana Ševčíková¹, Ekaterina F Malysheva², Vladimír Antonín¹, Jan Borovička³, Francesco Dovana⁴, Giuliano Ferisin⁵, Guillaume Eyssartier⁶, Django Grootmyers⁷, Jacob Heilmann-Clausen⁸, Jacob Kalichman⁹, Oğuzhan Kaygusuz¹⁰, Renée Lebeuf¹¹, Guillermo Muñoz González¹², Andrew M Minnis¹³, Stephen D Russell¹⁴, Irja Saar¹⁵, Ida Broman Nielsen¹⁶, Tobias Guldberg Frøslev¹⁷, Alfredo Justo¹⁸

Affiliations

¹ Department of Botany, Moravian Museum, Zelný trh 6, 659 37 Brno, Czech Republic.
² Shatelena Str. 20, 194021 St. Petersburg, Russia.
³ Institute of Geology of the Czech Academy of Sciences, Rozvojová 269, 165 00 Prague, Czech Republic.
⁴ Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale T. Michel 11, 15121 Alessandria, Italy.
⁵ Associazione Micologica Bassa Friulana, Via Vespucci 7, 33052 Cervignano del Friuli, Italy.
⁶ Institut de Systématique, Évolution, Biodiversité (UMR 7205-MNHN, CNRS, Sorbonne Université, EPHE, Université des Antilles), 45 rue Buffon, 75005 Paris, France.
⁷ Department of Ecology and Evolutionary Biology, University of Tennessee, 1416 Circle Dr, Knoxville, TN 37916, USA.
⁸ Center for Macroecology, Evolution and Climate, Globe Institute, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark.
⁹ Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, USA.
¹⁰ Department of Plant and Animal Production, Atabey Vocational School, Isparta University of Applied Sciences, 32670 Isparta, Turkey.
¹¹ 775, Rang du Rapide Nord, Saint-Casimir, QC G0A 3L0, Canada.
¹² Calle Tudela, 20, 50650 Gallur, Zaragoza, Spain.
¹³ USDA-APHIS-PPQ, Seattle Plant Inspection Station, 835 S. 192nd St., Suite 1600, SeaTac, WA 98148, USA.
¹⁴ The Hoosier Mushroom Society, 3912 S. Carey St., Marion, IN 46953, USA.
¹⁵ Institute of Ecology and Earth Sciences, University of Tartu, J. Liivi 2, 50409 Tartu, Estonia.
¹⁶ Center for Evolutionary Hologenomics, Globe Institute, University of Copenhagen, Øster Farimagsgade 5, 1014 Copenhagen, Denmark.
¹⁷ Section for Geogenetics, Globe Institute, University of Copenhagen, Øster Voldgade 5-7, 1350 Copenhagen, Denmark.
¹⁸ New Brunswick Museum, 277 Douglas Ave., Saint John, NB E2K 1E5, Canada.

Abstract

We studied the taxonomy of Pluteus podospileus and similar species using morphological and molecular (nrITS, TEF1-α) data, including a detailed study of the type collections of P. inflatus var. alneus, Pluteus minutissimus f. major, and P. granulatus var. tenellus. Within the P. podospileus complex, we phylogenetically confirmed six species in Europe, five in Asia, and eight in North America. Based on our results, we recognize P. seticeps as a separate species occurring in North America, while P. podospileus is limited to Eurasia. We describe six new species and a new variety: P. absconditus, P. fuscodiscus, P. gausapatus, P. inexpectatus, P. millsii, and P. notabilis and its variety, P. notabilis var. insignis. We elevate Pluteus seticeps var. cystidiosus to species rank as Pluteus cystidiosus. Based on the holotype of P. inflatus var. alneus, collections of P. inflatus identified by Velenovský, and several modern collections, we resurrect the name P. inflatus. Based on molecular analyses of syntypes of Pluteus minutissimus f. major and a holotype of Pluteus granulatus var. tenellus, we synonymize them under P. inflatus. We also increase our knowledge about the morphology and distribution of P. cutefractus.

Keywords: Celluloderma; agaricales; holarctic; new species; pluteaceae; type study.

Grants and funding

The research of H. Ševčíková and V. Antonín appears through the institutional support of the long-term conceptual development of research institutions provided by the Ministry of Culture (Moravian Museum, ref. MK000094862). Institutional support for the Institute of Geology of the Czech Academy of Sciences (Jan Borovička) was provided by the Long-term Development Project RVO67985831. Giuliano Ferisin was supported by the Associazione Micologica Bassa Friulana and the Federazione Gruppi Micologici FVG. The research of Django Grootmyers was supported by a National Science Foundation grant DEB 2030779. The work of Oğuzhan Kaygusuz was supported by project No. 2021-ILK1-0155 of the Research Fund of the Isparta University of Applied Sciences. The research of Ekaterina Malysheva was supported by project N 122011900033-4 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” of BIN RAS. Irja Saar was supported by an Estonian Research Council grant (PRG1170). The research of Ida Broman Nielsen and Tobias Guldberg Frøslev was supported by the Danish National Research Foundation grant DNRF143.