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Issue: Vol. 747 No. 1: 13 Mar. 2026
Type: Article
Published: 2026-03-13
DOI: 10.11646/phytotaxa.747.1.7
Page range: 108-120
Abstract views: 0
PDF downloaded: 0

A new peat-associated omphalinoid species from Europe: Arrhenia turficola sp. nov. (Agaricomycetes, Agaricales, Hygrophoraceae)

Univ. Lille, Univ. Artois, IMT Lille Douai, JUNIA, ULR 4515 – LGCgE, Laboratoire de Génie Civil et Géo-Environnement, 59000 Lille, France
Conservatoire botanique national des Pyrénées et de Midi-Pyrénées, Vallon de Salut. B.P. 315. 65203 Bagnères-de-Bigorre Cedex, France
Department of Botany, Faculty of Science, University of South Bohemia, Branišovská 1760, 37005 České Budějovice, Czech Republic
CEFE, CNRS, Univ Montpellier, EPHE, IRD, INSERM, 34000 Montpellier, France
Fungi Basidiomycota Omphalina Sphagnum Arrhenia griseopallida

Abstract

A new peat-associated species of Arrhenia, A. turficola sp. nov., is described. Hitherto known from continental Europe, the species is likely widespread, but uncommon. ITS and LSU nrDNA sequences reveal that it forms a clade distant from that containing all previously known hygrophilous species. Comparisons with ecologically and morphologically similar species are also discussed. In particular, although its distinct grey colour recalls the terricolous A. griseopallida, the striate pileus is inconsistent with Desmazières’ protologue, and its morphological, ecological, and molecular features do not match any of the diverse modern interpretations of that name.

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How to Cite

Moreau, P.-A., Corriol, G., Vašutová, M. & Bellanger, J.-M. (2026) A new peat-associated omphalinoid species from Europe: Arrhenia turficola sp. nov. (Agaricomycetes, Agaricales, Hygrophoraceae). Phytotaxa 747 (1): 108–120. https://doi.org/10.11646/phytotaxa.747.1.7