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Justo, Alfredo [1], Ševčíková, Hana [2], Malysheva, Ekaterina [3], Bulyonkova, Tatiana [4], Vellinga, Else [5], Muñoz, Guillermo [6], Heilmann-Clausen, Jacob [7], Ferisin, Giuliano [8], Dovana, Francesco [9], Horak, Egon [10].

The Pluteus leoninus complex across the Holarctic region (Pluteaceae, Agaricales).

We studied the taxonomy of the Pluteus leoninus species complex across the Holarctic region, using a combination of morphological and molecular approaches. We analyzed c. 150 ITS sequences of collections that belong in this group, and selected a subset of c. 60 collections to generate TEF1 data. Pluteus leoninus has been commonly cited across Eurasia and North America, although in that later case the name Pluteus flavofuligineus has also been commonly used, and the synonymy between both species has been frequently proposed. The single-gene and combined analyses suggest that P. leoninus is indeed a species with Holarctic distribution, although some phylogeographic structure is apparent between collections from Eurasia, Eastern North America and Western North America. We also identified clades in the phylogeny that represent the best candidates to keep the names Pluteus roseipes and Pluteus favrei, both described from Europe. Four additional lineages, two Eurasian and two North American, can be recognized in the phylogenies and represent independent species. Based on the revision of type collections, we will discuss the application of the names P. flavofuligineus, P. glabrescens, P. longipes, P. pallidicervinus, and P. whiteae, for the clades recovered in the phylogenetic analyses.

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1 - New Brunswick Museum, Natural History, Saint John, NB, E2K 1E5, Canada
2 - Moravian Museum, Department of Botany, Brno, Czech Republic
3 - Komarov Botanical Institute, Saint Petersburg, Russia
4 - A. P. Ershov Institute, Novosibirsk, Russia
5 - University of California at Berkeley, Department of Plant and Microbial Biology, Berkeley , CA, USA
6 - University of Zaragoza, Zaragoza, Spain
7 - University of Copenhagen, Copenhagen, Denmark
8 - Mycology Assoc. Bassa Friulana, Cervignano del Friuli, Italy
9 - University of Torino, Torino, Italy
10 - Schlossfeld 17, Innsbruck, Austria


Presentation Type: Oral Paper
Session: MY6, Mycology: Systematics and Biodiversity
Location: /
Date: Thursday, July 22nd, 2021
Time: 10:30 AM(EDT)
Number: MY6003
Abstract ID:631
Candidate for Awards:None

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