Latest Articles from MycoKeys Latest 4 Articles from MycoKeys https://mycokeys.pensoft.net/ Fri, 29 Mar 2024 11:48:33 +0200 Pensoft FeedCreator https://mycokeys.pensoft.net/i/logo.jpg Latest Articles from MycoKeys https://mycokeys.pensoft.net/ Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China https://mycokeys.pensoft.net/article/86580/ MycoKeys 93: 23-56

DOI: 10.3897/mycokeys.93.86580

Authors: Zewei Liu, Yupeng Ge, Hui Zeng, Xianhao Cheng, Qin Na

Abstract: Species of Mycena sect. Calodontes are representative of the Mycena genus as a whole and are easily recognised by the pinkish, reddish, purplish to brownish pileus and larger basidiomata. Furthermore, the colour of the pileus in the species of sect. Calodontes often has a transition or changes in different stages and the combination of the colour of the pileus with cystidia and basidiospores can be used to recognise taxa within this section. To date, 19 species of Mycena sect. Calodontes have been reported worldwide. Including our recent description of M. yuezhuoi, five species of sect. Calodontes have been recorded in China. During examination of specimens collected in coniferous forests or mixed broadleaf-conifer forests in temperate regions of China, additional taxa assigned to sect. Calodontes were identified. Four new species are recognised, based mostly on characters of the pileus and cystidia. Phylogenetic analysis of sequence data from multiple DNA regions (ITS + rpb1 + tef1) supported the morphological evidence. Here, we propose M. polycystidiata, M. rufobrunnea, M. shengshanensis and M. subulata as new species in Mycena sect. Calodontes. Morphological descriptions, line drawings, habitat photos and comparisons with closely-related taxa are provided. A key to the 23 known species of sect. Calodontes is presented.

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Research Article Tue, 27 Sep 2022 15:05:30 +0300
Taxonomic studies of bluish Mycena (Mycenaceae, Agaricales) with two new species from northern China https://mycokeys.pensoft.net/article/78880/ MycoKeys 90: 119-145

DOI: 10.3897/mycokeys.90.78880

Authors: Qin Na, Zewei Liu, Hui Zeng, Binrong Ke, Zhizhong Song, Xianhao Cheng, Yupeng Ge

Abstract: Bluish Mycena are rare, but constitute a taxonomically complex group. A total of eight bluish species in four sections have previously been reported from North America, Europe, Oceania and Asia. Two species with a blue pileus, collected in China during our taxonomic study of Mycena s.l., are described here as new to science: Mycena caeruleogrisea sp. nov. and M. caeruleomarginata sp. nov. Detailed descriptions, line drawings and a morphological comparison with closely-related species, especially herbarium specimens of M. subcaerulea from the USA, are provided. The results of Bayesian Inference and Maximum Likelihood phylogenetic analyses of a dataset of 96 nuclear rDNA ITS and 20 nLSU sequences of 43 Mycena species are also presented. The morphological data and the results of the phylogenetic analyses support the introduction of M. caeruleogrisea and M. caeruleomarginata as new species. A taxonomic key to bluish Mycena species of sections Amictae, Cyanocephalae, Sacchariferae and Viscipelles is provided.

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Research Article Fri, 17 Jun 2022 12:31:30 +0300
Updated description of Atheniella (Mycenaceae, Agaricales), including three new species with brightly coloured pilei from Yunnan Province, southwest China https://mycokeys.pensoft.net/article/67773/ MycoKeys 81: 139-164

DOI: 10.3897/mycokeys.81.67773

Authors: Yupeng Ge, Zewei Liu, Hui Zeng, Xianhao Cheng, Qin Na

Abstract: An updated description of the genus Atheniella, combining macro- and micromorphological characters that elaborate on the original generic characterisation, is presented. Atheniella is characterised by a brightly coloured pileus, all tissues inamyloid and pileipellis covered with simple to branched excrescences. Previously, nine Atheniella species were known globally, of which three species were accepted in China. Three newly-recognised species classified in the genus are here formally described from Yunnan Province: Atheniella flavida sp. nov., A. rutila sp. nov. and A. taoyao sp. nov. The new species are characterised by a yellow, orange, pink or red pileus, fusiform cheilocystidia and pleurocystidia, non-smooth pileipellis, stipitipellis smooth or with cylindrical ornamentation, caulocystidia fusiform or subglobose, if present and all tissues inamyloid. Morphological descriptions, photographs, line drawings and comparisons with closely-related taxa are presented for the new species. A phylogenetic analysis of sequence data for the rDNA internal transcribed spacer region and nuclear large ribosomal subunit (ITS + nLSU) supported that Atheniella is resolved as monophyletic and also supported the taxonomic recognition of the new species. A key to the 12 species of Atheniella is also provided.

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Research Article Wed, 14 Jul 2021 11:50:10 +0300
Recognition of Mycena sect. Amparoina sect. nov. (Mycenaceae, Agaricales), including four new species and revision of the limits of sect. Sacchariferae https://mycokeys.pensoft.net/article/34647/ MycoKeys 52: 103-124

DOI: 10.3897/mycokeys.52.34647

Authors: Qin Na, Tolgor Bau

Abstract: Phylogenetic reconstruction revealed that Mycena stirps Amparoina, which is traditionally classified in sect. Sacchariferae, should be treated at section level. Section Amparoina is characterised by the presence or absence of cherocytes, the presence of acanthocysts and spinulose caulocystidia. Eight species referred to Mycena sect. Amparoina sect. nov. are recognised in China. Of these taxa, four new species classified in the new section are formally described: M. bicystidiata sp. nov., M. griseotincta sp. nov., M. hygrophoroides sp. nov. and M. miscanthi sp. nov. The new species are characterised by the absence of both cherocytes and a basal disc, along with the presence of acanthocysts on the pileus, spinulose cheilocystidia and caulocystidia. Descriptions of the new species, accompanied by illustrations of morphological characters and comparisons with closely related taxa, are provided. A multi-locus analysis utilising the ITS + nLSU + SSU regions was carried out using maximum likelihood and Bayesian Inference. A key to the 12 species of sect. Amparoina sect. nov. and sect. Sacchariferae that are found in China is provided.

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Research Article Thu, 16 May 2019 10:44:54 +0300