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Issue: Vol. 607 No. 1: 3 Aug. 2023
Type: Article
Published: 2023-08-03
DOI: 10.11646/phytotaxa.607.1.5
Page range: 57-71
Abstract views: 203
PDF downloaded: 10

Studies in Hygrocybe s.l. (Hygrocyboideae, Hygrophoraceae) in Brazil: New species of Humidicutis and Neohygrocybe

Divisão do Curso de Pós-graduação em Botânica, Instituto Nacional de Pesquisas da Amazônia (INPA), Av. André Araújo 2936, 69067-375, Manaus, AM, Brazil
Department of Ecology and Evolutionary Biology, University of Toronto, 25 Willcocks Street, Toronto, ON M5S 3B2, Canada; Department of Natural History, Royal Ontario Museum, 100 Queens Park, Toronto, ON M5S 2C6, Canada
Department of Plant Pathology and Odum School of Ecology, University of Georgia, Athens, GA 30602, United States
Department of Natural History, Royal Ontario Museum, 100 Queens Park, Toronto, ON M5S 2C6, Canada
Graduate Program in Biology of Fungi, Federal University of Santa Catarina (UFSC), Campus Universitário Reitor João David Ferreira Lima, s/n, 88040-900, Florianopolis, Brazil
Divisão do Curso de Pós-graduação em Botânica, Instituto Nacional de Pesquisas da Amazônia (INPA), Av. André Araújo 2936, 69067-375, Manaus, AM, Brazil
Fungi Agaricales Amazonia Atlantic Rainforest fungi phylogeny taxonomy

Abstract

Humidicutis and Neohygrocybe are genera of wax cap mushrooms closely related to Hygrocybe. This is the first study in Humidicutis and Neohygrocybe from Brazil. We describe two new species, H. pindorama and N. fumosa, based on morphology and ITS rDNA data, and propose a new combination, N. ovinoides. Maximum Likelihood and Bayesian analyses were conducted to reconstruct the phylogenetic relationships of the new species and related taxa. The resulting trees suggest that the new species are unique and show significant similarities to existing taxa in their respective genera. We also provide a key to the species of Humidicutis and Neohygrocybe known in the world.

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