Latest Articles from MycoKeys Latest 34 Articles from MycoKeys https://mycokeys.pensoft.net/ Fri, 29 Mar 2024 11:39:50 +0200 Pensoft FeedCreator https://mycokeys.pensoft.net/i/logo.jpg Latest Articles from MycoKeys https://mycokeys.pensoft.net/ Rostrupomyces, a new genus to accommodate Xerocomus sisongkhramensis, and a new Hemileccinum species (Xerocomoideae, Boletaceae) from Thailand https://mycokeys.pensoft.net/article/107935/ MycoKeys 103: 129-165

DOI: 10.3897/mycokeys.103.107935

Authors: Santhiti Vadthanarat, Bhavesh Raghoonundon, Saisamorn Lumyong, Olivier Raspé

Abstract: A new genus, Rostrupomyces is established to accommodate Xerocomus sisongkhramensis based on multiple protein-coding genes (atp6, cox3, tef1, and rpb2) analyses of a wide taxon sampling of Boletaceae. In our phylogeny, the new genus was sister to Rubinosporus in subfamily Xerocomoideae, phylogenetically distant from Xerocomus, which was highly supported as sister to Phylloporus in the same subfamily Xerocomoideae. Rostrupomyces is different from other genera in Boletaceae by the following combination of characters: rugulose to subrugulose pileus surface, white pores when young becoming pale yellow in age, subscabrous stipe surface scattered with granulose squamules, white basal mycelium, unchanging color in any parts, yellowish brown spore print, and broadly ellipsoid to ellipsoid, smooth basidiospores. In addition, Hemileccinum inferius, also from subfamily Xerocomoideae, is newly described. Detailed descriptions and illustrations of the new genus and new species are presented.

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Research Article Thu, 28 Mar 2024 18:08:02 +0200
Multiple evidence reveals two new species and new distributions of Calocybe species (Lyophyllaceae) from northeastern China https://mycokeys.pensoft.net/article/116605/ MycoKeys 103: 37-55

DOI: 10.3897/mycokeys.103.116605

Authors: Ao Ma, Jia-Jun Hu, Yue-Qu Chen, Xin Wang, Yong-Lan Tuo, Lei Yue, Xue-Fei Li, Dan Dai, Yun-Hui Wei, Bo Zhang, Yu Li

Abstract: The Calocybe species possess notable economic and medicinal value, demonstrating substantial potential for resource utilization. The taxonomic studies of Calocybe are lacking in quality and depth. Based on the specimens collected from northeast China, this study provides a detailed description of two newly discovered species, namely Calocybe betulicola and Calocybe cystidiosa, as well as two commonly found species, Calocybe decolorata and Calocybe ionides. Additionally, a previously unrecorded species, C. decolorata, has recently been discovered in Jilin Province, China. The two newly discovered species can be accurately distinguished from other species within the genus Calocybe based on their distinct morphological characteristics. The primary distinguishing features of C. betulicola include its grayish-purple pileus, grayish-brown to dark purple stipe, smaller basidiomata, absence of cellular pileipellis, and its habitat on leaf litter within birch forests. Calocybe cystidiosa is distinguished by its growth on the leaf litter of coniferous forests, a flesh-pink pileus, a fibrous stipe with a white tomentose covering at the base, non-cellular pileipellis, larger basidiospores, and the presence of cheilocystidia. The reconstruction of phylogenetic trees using combined ITS, nLSU, and tef1-α sequences, employing maximum likelihood and Bayesian inference analyses, showed that C. betulicola formed a cluster with C. decurrens, while C. cystidiosa clustered with C. vinacea. However, these two clusters formed separate branches themselves, which also supported the results obtained from our morphological studies. A key to the Calocybe species reported from northeast China is provided to facilitate future studies of the genus.

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Research Article Wed, 13 Mar 2024 10:55:40 +0200
Morphology and multigene phylogeny reveal three new species of Distoseptispora (Distoseptisporales, Distoseptisporaceae) on palms (Arecaceae) from peatswamp areas in southern Thailand https://mycokeys.pensoft.net/article/112815/ MycoKeys 102: 55-81

DOI: 10.3897/mycokeys.102.112815

Authors: Omid Karimi, K. W. Thilini Chethana, Antonio R. G. de Farias, Raheleh Asghari, Saithong Kaewchai, Kevin D. Hyde, Qirui Li

Abstract: Peatswamp forest is a unique habitat that supports high biodiversity, particularly fungal diversity. The current study collected submerged and dead plant parts from Eleiodoxa conferta, Eugeissona tristis and Licuala paludosa from a peatswamp forest in Narathiwat Province, Thailand. Morphological features coupled with multigene phylogenetic analyses of ITS, LSU, rpb2 and tef1-α sequence data identified our isolates as new Distoseptispora species (viz. D. arecacearum sp. nov., D. eleiodoxae sp. nov. and D. narathiwatensis sp. nov.). Morphological descriptions, illustrations and notes are provided.

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Research Article Fri, 9 Feb 2024 13:33:22 +0200
Three novel species and new records of Kirschsteiniothelia (Kirschsteiniotheliales) from northern Thailand https://mycokeys.pensoft.net/article/115286/ MycoKeys 101: 347-370

DOI: 10.3897/mycokeys.101.115286

Authors: Antonio Roberto Gomes de Farias, Naghmeh Afshari, Veenavee S. Hittanadurage Silva, Johnny Louangphan, Omid Karimi, Saranyaphat Boonmee

Abstract: Kirschsteiniothelia (Kirschsteiniotheliales, Pleosporomycetidae) includes 39 saprobic species recorded from dead or decaying wood in terrestrial and freshwater habitats. This study focuses on exploring Kirschsteiniothelia diversity in woody litter in Thailand. Wood samples were collected from forest areas in Chiang Rai and Chiang Mai Provinces in Thailand and examined for fungal fructifications. Fungal isolates were obtained and their morphological and sequence data were characterised. Micromorphology associated with multilocus phylogeny of ITS, LSU and SSU sequence data identified three isolates as novel species (Kirschsteiniothelia inthanonensis, K. saprophytica and K. zizyphifolii) besides new host records for K. tectonae and K. xishuangbannaensis. The placement of the new taxa and records are supported by morphological illustrations, descriptions and molecular phylogenies and the implications of these findings are discussed. Our findings provide information for understanding Kirschsteiniothelia diversity and ecology.

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Research Article Fri, 2 Feb 2024 17:51:26 +0200
Two new Trichoderma species (Hypocreales, Hypocreaceae) isolated from decaying tubers of Gastrodia elate https://mycokeys.pensoft.net/article/109404/ MycoKeys 99: 187-207

DOI: 10.3897/mycokeys.99.109404

Authors: Chuwen Ye, Tingting Jing, Yuru Sha, Minghe Mo, Zefen Yu

Abstract: Species of Trichoderma are widely distributed around the world. In this study, two new species in Trichoderma, named as T. albidum and T. variegatum, were introduced and illustrated. These species were isolated from diseased tubers of Gastrodia elata in China and identified based on morphological characteristics and multi-gene sequence analyses of three loci that is the internal transcribed spacer regions of the ribosomal DNA (ITS), the translation elongation factor 1-α encoding gene (tef1-α) and the gene encoding the second largest nuclear RNA polymerase subunit (rpb2). Distinctions between the new species and their close relatives were discussed. According to results of the phylogenetic analyses, T. albidum belonged to the Harzianum clade and T. variegatum are grouped with species of the Spirale clade. The expansion of two clades provided research foundations for the prevention and control of tuber diseases in G. elata.

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Research Article Fri, 8 Sep 2023 08:30:42 +0300
Diversity of Cladosporium (Cladosporiales, Cladosporiaceae) species in marine environments and report on five new species https://mycokeys.pensoft.net/article/101918/ MycoKeys 98: 87-111

DOI: 10.3897/mycokeys.98.101918

Authors: Wonjun Lee, Ji Seon Kim, Chang Wan Seo, Jun Won Lee, Sung Hyun Kim, Yoonhee Cho, Young Woon Lim

Abstract: Cladosporium species are cosmopolitan fungi, characterized by olivaceous or dark colonies with coronate conidiogenous loci and conidial hila with a central convex dome surrounded by a raised periclinal rim. Cladosporium species have also been discovered in marine environments. Although many studies have been performed on the application of marine originated Cladosporium species, taxonomic studies on these species are scarce. We isolated Cladosporium species from three under-studied habitats (sediment, seawater, and seaweed) in two districts including an intertidal zone in the Republic of Korea and the open sea in the Western Pacific Ocean. Based on multigenetic marker analyses (for the internal transcribed spacer, actin, and translation elongation factor 1), we identified fourteen species, of which five were found to represent new species. These five species were C. lagenariiforme sp. nov., C. maltirimosum sp. nov., C. marinum sp. nov. in the C. cladosporioides species complex, C. snafimbriatum sp. nov. in the C. herbarum species complex, and C. marinisedimentum sp. nov. in the C. sphaerospermum species complex. Morphological characteristics of the new species and aspects of differences with the already known species are described herein together with molecular data.

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Research Article Fri, 2 Jun 2023 16:13:54 +0300
Ceriporiopsis tianshanensis (Polyporales, Agaricomycetes) and Sidera tianshanensis (Hymenochaetales, Agaricomycetes), two new species of wood-inhabiting fungi from Xinjiang, Northwest China https://mycokeys.pensoft.net/article/102552/ MycoKeys 98: 1-18

DOI: 10.3897/mycokeys.98.102552

Authors: Tai-Min Xu, Yi-Fei Sun, Shun Liu, Chang-Ge Song, Neng Gao, Dong-Mei Wu, Bao-Kai Cui

Abstract: Wood-inhabiting fungi are abundant in China, but their distribution is uneven, with more fungi in southwest China and fewer fungi in northwest China. During the investigation of wood-inhabiting fungi in Xinjiang, we collected a large number of specimens. Eight specimens growing on Picea schrenkiana were collected from Tianshan Mountains, and they were described as two new species in Ceriporiopsis and Sidera based on morphological characters and molecular evidence. Ceriporiopsis tianshanensis is characterized by a cream to salmon-buff pore surface, larger pores measuring 1–3 per mm, and broadly ellipsoid basidiospores 5–6.5 × 3–4 μm. Sidera tianshanensis is characterized by annual to perennial basidiocarps, measuring 15 mm thick, pores 5–7 per mm, cream to rosy buff pore surface, and allantoid basidiospores 3–3.5 × 1–1.4 µm. Detailed illustrations and descriptions of the novel species are provided.

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Research Article Mon, 29 May 2023 17:55:08 +0300
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
 Pseudosperma arenarium (Inocybaceae), a new poisonous species from Eurasia, based on morphological, ecological, molecular and biochemical evidence https://mycokeys.pensoft.net/article/86277/ MycoKeys 92: 79-93

DOI: 10.3897/mycokeys.92.86277

Authors: Ya-Ya Yan, Yi-Zhe Zhang, Jukka Vauras, Li-Na Zhao, Yu-Guang Fan, Hai-Jiao Li, Fei Xu

Abstract: In this study, Pseudosperma arenarium is proposed as a new species, based on morphological, ecological, molecular and biochemical evidence. The new species grows on sandy ground under Populus and Pinus sylvestris in north-western China and northern Europe, respectively. It is characterised by the combination of the robust habit, nearly glabrous pileus, large cylindrical basidiospores, thin-walled cheilocystidia and ecological associations with Populus alba × P. berolinensis and Pinus sylvestris and unique phylogenetic placement. Additionally, a comprehensive toxin determination of the new species using ultra-high performance liquid chromatography-tandem mass spectrometry was conducted. Results showed that it was a muscarine-positive species. The content were approximately five times higher in the pilei [4012.2 ± 803.1–4302.3 ± 863.2 mg/kg (k = 2, p = 95%)] than in the stipes [850.4 ± 171.1–929.1 ± 184.2 mg/kg (k = 2, p = 95%)], demonstrating the severity of mushroom poisoning when patients consumed different parts of the poisonous mushroom. Amatoxins, phallotoxins, ibotenic acid, muscimol, psilocybin and psilocin were not detected.

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Research Article Tue, 30 Aug 2022 09:38:37 +0300
Taxonomic study of Collybiopsis (Omphalotaceae, Agaricales) in the Republic of Korea with seven new species https://mycokeys.pensoft.net/article/79266/ MycoKeys 88: 79-108

DOI: 10.3897/mycokeys.88.79266

Authors: Ji Seon Kim, Yoonhee Cho, Ki Hyeong Park, Ji Hyun Park, Minkyeong Kim, Chang Sun Kim, Young Woon Lim

Abstract: Collybiopsis is a genus of the gymnopoid/marasmioid complex of the family Omphalotaceae. The classification system of Collybiopsis has recently undergone large changes through molecular approaches. The new classification system has not been applied for Collybiopsis in the Republic of Korea, and general research on this genus was also lacking. In this study, we analyzed the Collybiopsis species in the Republic of Korea by assessing all gymnopoid/marasmioid specimens collected nationwide for ten years by combining morphological approaches and multilocus (ITS + nrLSU) phylogenetic analysis. We thus confirmed that 16 species of Collybiopsis are present in the Republic of Korea, including two previously unreported species (Co. nonnulla and Co. dichroa) and seven new species (Co. albicantipes sp. nov., Co. clavicystidiata sp. nov., Co. fulva sp. nov., Co. orientisubnuda sp. nov., Co. subumbilicata sp. nov., Co. undulata sp. nov., and Co. vellerea sp. nov.). A thorough examination of the Collybiopsis suggested that it is difficult to distinguish or identify the species based on morphological characteristics only; a combined molecular approach is needed for accurate identification. The Collybiopsis database of the Republic of Korea is updated, and information on the new species is provided. Five new combinations from Marasmiellus to Collybiopsis are also proposed (Co. istanbulensis comb. nov., Co. koreana comb. nov., Co. omphalodes comb. nov., Co. pseudomphalodes comb. nov., and Co. ramuliciola comb. nov.).

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Research Article Wed, 30 Mar 2022 10:52:20 +0300
Redelimitation of Heteroradulum (Auriculariales, Basidiomycota) with H. australiense sp. nov. https://mycokeys.pensoft.net/article/76425/ MycoKeys 86: 87-101

DOI: 10.3897/mycokeys.86.76425

Authors: Qian-Zhu Li, Shi-Liang Liu, Xue-Wei Wang, Tom W. May, Li-Wei Zhou

Abstract: Auriculariales accommodates species with diverse basidiomes and hymenophores. From morphological and phylogenetic perspectives, we perform a taxonomic study on Heteroradulum, a recently validated genus within the Auriculariales. The genus Grammatus is merged into Heteroradulum, and thus its generic type G. labyrinthinus is combined with Heteroradulum and G. semis is reaccepted as a member of Heteroradulum. Heteroradulum australiense is newly described on the basis of three Australian specimens. Heteroradulum yunnanense is excluded from this genus and its taxonomic position at the generic level is considered uncertain. Accordingly, the circumscription of Heteroradulum is re-delimited and the concept of this genus is adjusted by including irpicoid to poroid hymenophores and a hyphal system with clamp connections or simple septa. A key to all nine accepted species of Heteroradulum is presented.

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Research Article Wed, 19 Jan 2022 16:51:08 +0200
Species diversity, molecular phylogeny and ecological habits of Cyanosporus (Polyporales, Basidiomycota) with an emphasis on Chinese collections https://mycokeys.pensoft.net/article/78305/ MycoKeys 86: 19-46

DOI: 10.3897/mycokeys.86.78305

Authors: Shun Liu, Tai-Min Xu, Chang-Ge Song, Chang-Lin Zhao, Dong-Mei Wu, Bao-Kai Cui

Abstract: Cyanosporus is a genus widely distributed in Asia, Europe, North America, South America and Oceania. It grows on different angiosperm and gymnosperm trees and can cause brown rot of wood. Blue-tinted basidiomata of Cyanosporus makes it easy to distinguish from other genera, but the similar morphological characters make it difficult to identify species within the genus. Phylogeny and taxonomy of Cyanosporus were carried out based on worldwide samples with an emphasis on Chinese collections, and the species diversity of the genus is updated. Four new species, C. flavus, C. rigidus, C. subungulatus and C. tenuicontextus, are described based on the evidence of morphological characters, distribution areas, host trees and molecular phylogenetic analyses inferred from the internal transcribed spacer (ITS) regions, the large subunit of nuclear ribosomal RNA gene (nLSU), the small subunit of nuclear ribosomal RNA gene (nSSU), the small subunit of mitochondrial rRNA gene (mtSSU), the largest subunit of RNA polymerase II (RPB1), the second largest subunit of RNA polymerase II (RPB2), and the translation elongation factor 1-α gene (TEF). Our study expanded the number of Cyanosporus species to 35 around the world including 23 species from China. Detailed descriptions of the four new species and the geographical locations of the Cyanosporus species in China are provided.

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Research Article Tue, 11 Jan 2022 17:20:17 +0200
Two new Inosperma (Inocybaceae) species with unexpected muscarine contents from tropical China https://mycokeys.pensoft.net/article/71957/ MycoKeys 85: 87-108

DOI: 10.3897/mycokeys.85.71957

Authors: Lun-Sha Deng, Rui Kang, Nian-Kai Zeng, Wen-Jie Yu, Cheng Chang, Fei Xu, Wang-Qiu Deng, Liang-Liang Qi, Yu-Ling Zhou, Yu-Guang Fan

Abstract: An accurate identification of poisonous mushrooms and the confirmation of the toxins involved are both of great importance in the treatment of mushroom poisoning incidents. In recent years, cases of mushroom poisoning by Inosperma spp. have been repeatedly reported from tropical Asia. It is urgent to know the real species diversity of Inosperma in this region. In the present study, we proposed two new Inosperma species from tropical Asia, namely I. muscarium and I. hainanense. They were described based on morphology and multilocus phylogeny. Detailed descriptions, color photographs and the discussion with other closely related species of the two new taxa were provided. In addition, a comprehensive muscarine determination of these two new species using ultrahigh performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) approach has been performed. Results showed that these two species were muscarine positive, with a content of 16.03 ± 1.23 g/kg in I. muscarium and a content of 11.87 ± 3.02 g/kg in I. hainanense, much higher than the known species I. virosum. Recovery of muscarine ranged from 93.45% to 97.25%, and the average recovery is 95.56%.

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Research Article Wed, 15 Dec 2021 12:02:12 +0200
Two novel species and two new records of Distoseptispora from freshwater habitats in China and Thailand https://mycokeys.pensoft.net/article/71905/ MycoKeys 84: 79-101

DOI: 10.3897/mycokeys.84.71905

Authors: Hong-Wei Shen, Dan-Feng Bao, Kevin D. Hyde, Hong-Yan Su, Darbhe J. Bhat, Zong-Long Luo

Abstract: During investigations into freshwater fungi from the Great Mekong Subregion, four Distoseptispora taxa were collected from China and Thailand. Based on morphological characteristics, and phylogenetic analyses of combined LSU, ITS, SSU, TEF1-α, and RPB2 sequence data, two new species Distoseptispora bangkokensis and D. lancangjiangensis are introduced, and two known species D. clematidis and D. thysanolaenae were first reported in freshwater habitat. Illustrations and descriptions of these taxa are provided, along with comparisons with extant taxa in the genus.

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Research Article Mon, 8 Nov 2021 19:49:36 +0200
Phylogeny and diversity of Bjerkandera (Polyporales, Basidiomycota), including four new species from South America and Asia https://mycokeys.pensoft.net/article/63908/ MycoKeys 79: 149-172

DOI: 10.3897/mycokeys.79.63908

Authors: Chao-Ge Wang, Josef Vlasák, Yu-Cheng Dai

Abstract: Four new species of Bjerkandera, viz. B. ecuadorensis, B. fulgida, B. minispora, and B. resupinata spp. nov., are described from tropical America and Asia. B. ecuadorensis is characterised by dark grey to black pore surface, a monomitic hyphal system, hyaline to yellowish-brown generative hyphae, and ellipsoid basidiospores measuring 3.9–4.5 × 2.7–3 μm. B. fulgida is distinguished from the other species in the genus by clay buff to pale brown and shiny pore surface. B. minispora is characterised by white tomentose pore mouth and small basidiospores measuring 3.1–4.2 × 2–2.8 μm. B. resupinata is characterised by resupinate basidiomata, pinkish buff to pale brownish pore surface, and ellipsoid to broadly ellipsoid basidiospores measuring 4.5–6 × 3.2–4.1 µm. All these new species grow on angiosperm trunks or rotten wood, and cause a white rot. The closely related taxa to four new species are discussed. An identification key to the ten accepted species of Bjerkandera is provided, and a phylogeny comprising all known Bjerkandera species is provided.

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Research Article Mon, 26 Apr 2021 14:58:48 +0300
Morphological and molecular identification of two new Alternaria species (Ascomycota, Pleosporaceae) in section Radicina from China https://mycokeys.pensoft.net/article/64853/ MycoKeys 78: 187-198

DOI: 10.3897/mycokeys.78.64853

Authors: Lin He, Hong Cheng, Lin Zhao, Aye Aye Htun, Zhi He Yu, Jian Xin Deng, Qi Li Li

Abstract: The fungal genus Alternaria was distributed widely and found in different habitats such as plant or indoor environment. During an investigation into this genus in China, two new Alternaria species, Alternaria vulgarae and A. divaricatae were respectively isolated from diseased leaves of Foeniculum vulgare and Saposhnikovia divaricata, which both belonged to Umbelliferae. Phylogenetically, they were determined as new species belonging in the section Radicina of Alternaria based on the combined four gene fragments of ITS, TEF1, GAPDH and RPB2. Morphologically, the two species were illustrated and compared with other relevant Alternaria species in section Radicina.

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Research Article Fri, 9 Apr 2021 10:05:35 +0300
Hebeloma in the Malay Peninsula: Masquerading within Psathyrella https://mycokeys.pensoft.net/article/57394/ MycoKeys 77: 117-141

DOI: 10.3897/mycokeys.77.57394

Authors: Ursula Eberhardt, Nicole Schütz, Henry J. Beker, Su See Lee, Egon Horak

Abstract: In 1994 Corner published five new species within the genus Psathyrella, all having been collected on the Malay Peninsula between 1929 and 1930. Three of these species belong to the genus Hebeloma and with their vinaceous colored lamellae and spore print, when fresh, they belong to H. sect. Porphyrospora. Of these three species, only one, P. flavidifolia, was validly published and thus we herewith recombine it as H. flavidifolium. The other two species, P. splendens and P. verrucispora, are synonyms of H. parvisporum and H. lactariolens, respectively. We also describe a new Malayan species, H. radicans, which also belongs to H. sect. Porphyrospora. These findings confirm the western Pacific Rim as a diversity hotspot for H. sect. Porphyrospora. The records described within this paper, represent the first recognition that the genus Hebeloma, and indeed that members of the ectomycorrhizal Hymenogastraceae, are present on the Malay Peninsula.

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Research Article Thu, 28 Jan 2021 13:36:21 +0200
Morphological and phylogenetic characterisations reveal three new species of Samsoniella (Cordycipitaceae, Hypocreales) from Guizhou, China https://mycokeys.pensoft.net/article/56655/ MycoKeys 74: 1-15

DOI: 10.3897/mycokeys.74.56655

Authors: Wan-Hao Chen, Yan-Feng Han, Jian-Dong Liang, Wei-Yi Tian, Zong-Qi Liang

Abstract: Samsoniella species have been found on lepidopteran larvae or pupae buried in soil or leaf litter. Three new species, Samsoniella hymenopterorum, S. coleopterorum and S. lepidopterorum, parasitic on hymenopteran larvae, coleopteran larvae and lepidopteran pupae, respectively, are reported. Morphological comparisons with extant species and DNA-based phylogenies from analysis of a multigene (ITS, RPB1, RPB2 and TEF) dataset supported the establishment of the new species. Unusually, all three new species have mononematous conidiophores. The new species are clearly distinct from other species in Samsoniella occurring in separate subclades.

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Research Article Mon, 19 Oct 2020 16:42:34 +0300
The genus Clavariadelphus (Clavariadelphaceae, Gomphales) in China https://mycokeys.pensoft.net/article/54149/ MycoKeys 70: 89-121

DOI: 10.3897/mycokeys.70.54149

Authors: Hong-Yan Huang, Jie Zhao, Ping Zhang, Zai-Wei Ge, Xian Li, Li-Ping Tang

Abstract: Clavariadelphus species (Clavariadelphaceae, Gomphales) in China were examined using morphology, molecular phylogenetic analyses of ITS data and chemical reactions. Eleven taxa were identified in China, including four species known previously to occur in China (C. griseoclavus, C. ligula, C. sachalinensis and C. yunnanensis), two new record species from China (C. elongatus and C. himalayensis), four novel species (C. alpinus, C. amplus, C. gansuensis and C. khinganensis) and one species that could not be described due to the paucity of material. Finally, we also provided a taxonomic key for the identification of Clavariadelphus species in China.

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Research Article Wed, 29 Jul 2020 08:39:25 +0300
A new lichenized fungus, Lecanora baekdudaeganensis, from South Korea, with a taxonomic key for Korean Lecanora species https://mycokeys.pensoft.net/article/51569/ MycoKeys 70: 39-58

DOI: 10.3897/mycokeys.70.51569

Authors: Beeyoung Gun Lee, Jae-Seoun Hur

Abstract: Lecanora baekdudaeganensis Lee & Hur is described as a new lichenized fungus from Baekdudaegan Mountains, South Korea. The new species is classified into the Lecanora subfusca group – allophana type and distinguishable from Lecanora imshaugii Brodo by a darker thallus, brownish disc, K–insoluble granules on the surface of the epihymenium, shorter hypothecium, and the presence of oil droplets in the apothecial section. Molecular analyses employing internal transcribed spacer (ITS) and mitochondrial small subunit (mtSSU) sequences strongly support Lecanora baekdudaeganensis as a distinct species in the genus Lecanora. A surrogate key is provided to assist in the identification of all 52 taxa in the genus Lecanora of Korea.

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Research Article Fri, 24 Jul 2020 09:06:19 +0300
Three new species of Cortinarius subgenus Telamonia (Cortinariaceae, Agaricales) from China https://mycokeys.pensoft.net/article/49437/ MycoKeys 69: 91-109

DOI: 10.3897/mycokeys.69.49437

Authors: Meng-Le Xie, Tie-Zheng Wei, Yong-Ping Fu, Dan Li, Liang-Liang Qi, Peng-Jie Xing, Guo-Hui Cheng, Rui-Qing Ji, Yu Li

Abstract: Cortinarius is an important ectomycorrhizal genus that forms a symbiotic relationship with certain trees, shrubs and herbs. Recently, we began studying Cortinarius in China and here we describe three new species of Cortinarius subg. Telamonia based on morphological and ecological characteristics, together with phylogenetic analyses. Cortinarius laccariphyllus sp. nov. (section Colymbadini) is associated with broadleaf trees, with strongly hygrophanous basidiomata, special Laccaria-like lamellae and white and extremely sparse universal veil. Cortinarius neotorvus sp. nov. (section Telamonia) is associated with broadleaf trees and is easily confused with C. torvus, but can be distinguished by the colour of the fresh basidiomes and the stipe usually somewhat tapering towards the base. Cortinarius subfuscoperonatus sp. nov. (section Fuscoperonati) is associated with coniferous trees, with subglobose to broadly ellipsoid spores and is closely related to C. fuscoperonatus. A key to the new species and similar species in sections Colymbadini, Telamonia and Fuscoperonati is provided.

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Research Article Tue, 14 Jul 2020 16:37:26 +0300
Taxonomy and phylogeny of the Leptographium olivaceum complex (Ophiostomatales, Ascomycota), including descriptions of six new species from China and Europe https://mycokeys.pensoft.net/article/39069/ MycoKeys 60: 93-123

DOI: 10.3897/mycokeys.60.39069

Authors: Mingliang Yin, Michael J. Wingfield, Xudong Zhou, Riikka Linnakoski, Z. Wilhelm de Beer

Abstract: The Leptographium olivacea complex encompasses species in the broadly defined genus Leptographium (Ophiostomatales, Ascomycota) that are generally characterized by synnematous conidiophores. Most species of the complex are associates of conifer-infesting bark beetles in Europe and North America. The aims of this study were to reconsider the delineation of known species, and to confirm the identity of several additional isolates resembling L. olivacea that have emerged from recent surveys in China, Finland, Poland, Russia, and Spain. Phylogenetic analyses of sequence data for five loci (ACT, TUB, CAL, ITS2-LSU, and TEF-1α) distinguished 14 species within the complex. These included eight known species (L. cucullatum, L. davidsonii, L. erubescens, L. francke-grosmanniae, L. olivaceum, L. olivaceapini, L. sagmatosporum, and L. vescum) and six new species (herein described as L. breviuscapum, L. conplurium, L. pseudoalbum, L. rhizoidum, L. sylvestris, and L. xiningense). New combinations are provided for L. cucullatum, L. davidsonii, L. erubescens, L. olivaceum, L. olivaceapini, L. sagmatosporum and L. vescum. New Typifications: Lectotypes are designated for L. olivaceum, L. erubescens and L. sagmatosporum. Epitypes were designated for L. olivaceapini and L. sagmatosporum. In addition to phylogenetic separation, the synnematous asexual states and ascomata with almost cylindrical necks and prominent ostiolar hyphae, distinguish the L. olivaceum complex from others in Leptographium.

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Research Article Fri, 29 Nov 2019 14:36:43 +0200
A new record of Ganoderma tropicum (Basidiomycota, Polyporales) for Thailand and first assessment of optimum conditions for mycelia production https://mycokeys.pensoft.net/article/33513/ MycoKeys 51: 65-83

DOI: 10.3897/mycokeys.51.33513

Authors: Thatsanee Luangharn, Samantha C. Karunarathna, Peter E. Mortimer, Kevin D. Hyde, Naritsada Thongklang, Jianchu Xu

Abstract: In this study a new record of Ganoderma tropicum is described as from Chiang Rai Province, Thailand. The fruiting body was collected on the base of a living Dipterocarpus tree. The sample is described on the basis of morphological characteristics and phylogenetic analyses, and compared with closely related taxa. Multigene phylogenetic analyses of LSU, ITS, and RPB2 highly support the placement of the G. tropicum group with isolates from China and Taiwan (Maximum likelihood 100%, Maximum parsimony 100%, and Bayesian posterior probabilities 1.00). The optimal media, pH, and temperature for mycelial growth of the G. tropicum strain KUMCC18-0046 was also investigated and is reported as: PDA, MEA, and YPD, at pH 7–8 and 25–28 °C, respectively. This is the first report on the successful growing conditions for mycelial production, but unfortunately fruiting could not be achieved.

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Research Article Tue, 7 May 2019 10:25:47 +0300
Type studies of Rossbeevera bispora, and a new species of Rossbeevera from south China https://mycokeys.pensoft.net/article/32775/ MycoKeys 51: 15-28

DOI: 10.3897/mycokeys.51.32775

Authors: Md. Iqbal Hosen, Xiang-Jing Zhong, Genevieve Gates, Takamichi Orihara, Tai-Hui Li

Abstract: The type of Rossbeevera bispora and additional collections from the type location and adjacent areas were studied. Molecular data for R. bispora derived from the new collections are provided. In addition, R. griseobrunnea, a new species of Rossbeevera, is described from Xiangtoushan National Nature Reserve, Guangdong Province of China. The new species is characterized by its globose to subglobose sequestrate basidiomata with grayish white to grayish brown pileus, pale bluish discoloration in some parts of the hymenophore when injured becoming rusty brown to dark brown after being exposed to the air, fusoid (star-shaped in cross section) basidiospores 17–20 × 9–12 μm, and subcutis elements in the pileus. Based on multi-locus (ITS+nrLSU+tef1-α+rpb2) molecular phylogenetic analyses, both species appear as sister to R. paracyanea. We present color photos, macro- and micro-description, SEM basidiospores, molecular affinities of the species and compare them with morphologically similar taxa within the genus. A key to the species known from northern and southern hemispheres is provided.

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Research Article Mon, 15 Apr 2019 13:48:09 +0300
New and noteworthy boletes from subtropical and tropical China https://mycokeys.pensoft.net/article/31470/ MycoKeys 46: 55-96

DOI: 10.3897/mycokeys.46.31470

Authors: Hui Chai, Zhi-Qun Liang, Rou Xue, Shuai Jiang, Shi-Hong Luo, Yong Wang, Lu-Ling Wu, Li-Ping Tang, Yun Chen, Deng Hong, Nian-Kai Zeng

Abstract: The morphology, ecology, and phylogenetic relationships of specimens of the family Boletaceae from subtropical and tropical China were investigated. Four species, Butyriboletus huangnianlaii, Lanmaoa macrocarpa, Neoboletus multipunctatus, and Sutorius subrufus, are new to science. Chalciporus radiatus and Caloboletus xiangtoushanensis are redescribed. Caloboletus guanyui is proposed to replace Boletus quercinus Hongo, an illegitimate later homonym. The recently described Tylopilus callainus is synonymized with the Japanese Boletus virescens, and the new combination T. virescens (Har. Takah. & Taneyama) N.K. Zeng et al. is proposed. Moreover, Neoboletus is treated as an independent genus based on evidence from morphology and molecular phylogenetic data in the present study, and many previously described taxa of Sutorius are recombined into Neoboletus: N. ferrugineus (G. Wu et al.) N.K. Zeng et al., N. flavidus (G. Wu & Zhu L. Yang) N.K. Zeng et al., N. hainanensis (T.H. Li & M. Zang) N.K. Zeng et al., N. obscureumbrinus (Hongo) N.K. Zeng et al., N. rubriporus (G. Wu & Zhu L. Yang) N.K. Zeng et al., N. sanguineoides (G. Wu & Zhu L. Yang) N.K. Zeng et al. , N. sanguineus (G. Wu & Zhu L. Yang) N.K. Zeng et al., and N. tomentulosus (M. Zang et al.) N.K. Zeng et al.

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Research Article Mon, 18 Feb 2019 15:08:41 +0200
Coryneum heveanum sp. nov. (Coryneaceae, Diaporthales) on twigs of Para rubber in Thailand https://mycokeys.pensoft.net/article/29365/ MycoKeys 43: 75-90

DOI: 10.3897/mycokeys.43.29365

Authors: Chanokned Senwanana, Kevin D. Hyde, Rungtiwa Phookamsak, E.B. Gareth Jones, Ratchadawan Cheewangkoon

Abstract: During studies of microfungi on para rubber in Thailand, we collected a new Coryneum species on twigs which we introduce herein as C. heveanum with support from phylogenetic analyses of LSU, ITS and TEF1 sequence data and morphological characters. Coryneum heveanum is distinct from other known taxa by its conidial measurements, number of pseudosepta and lack of a hyaline tip to the apical cell.

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Research Article Thu, 6 Dec 2018 09:02:18 +0200
Three new species of Krogia (Ramalinaceae, lichenised Ascomycota) from the Paleotropics https://mycokeys.pensoft.net/article/26025/ MycoKeys 40: 69-88

DOI: 10.3897/mycokeys.40.26025

Authors: Sonja Kistenich, Jouko K. Rikkinen, Holger Thüs, Charles S. Vairappan, Patricia A. Wolseley, Einar Timdal

Abstract: Krogia borneensis Kistenich & Timdal, K. isidiata Kistenich & Timdal and K. macrophylla Kistenich & Timdal are described as new species, the first from Borneo and the two latter from New Caledonia. The new species are supported by morphology, secondary chemistry and DNA sequence data. Krogia borneensis and K. isidiata contain sekikaic and homosekikaic acid, both compounds reported here for the first time from the genus. Krogia macrophylla contains an unknown compound apparently related to boninic acid as the major compound. DNA sequences (mtSSU and nrITS) are provided for the first time for Krogia and a phylogeny of the genus based on 15 accessions of five of the six accepted species is presented. Krogia antillarum is reported as new to Brazil, Guatemala and Mexico.

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Research Article Wed, 26 Sep 2018 13:26:58 +0300
A new section and species of Agaricus subgenus Pseudochitonia from Thailand https://mycokeys.pensoft.net/article/26918/ MycoKeys 40: 53-67

DOI: 10.3897/mycokeys.40.26918

Authors: Mao-Qiang He, Boontiya Chuankid, Kevin D. Hyde, Ratchadawan Cheewangkoon, Rui-Lin Zhao

Abstract: A large species diversity has recently been discovered in the genus Agaricus. Six subgenera and 23 sections are now recognised. In this study, three specimens collected from Thailand, formed a monophyletic clade in subgenus Pseudochitonia, based on analyses of ITS sequence data. Further analyses, based on multi-gene sequence data (ITS, LSU, tef1-α), using BEAST, revealed that this clade originated 26.7 Ma. According to their distinct morphological characteristics, phylogenetic position and relatively old divergence time, a new section Cymbiformes is proposed and this section is represented by a new species A. angusticystidiatus. This new section is characterised by the strong iodoform odour of basidiomes and cymbiform basidiospores. Descriptions, colour photographs and illustrations are presented.

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Research Article Thu, 20 Sep 2018 08:57:15 +0300
Molecular and morphological evidence reveal a new genus and species in Auriculariales from tropical China https://mycokeys.pensoft.net/article/25271/ MycoKeys 35: 27-39

DOI: 10.3897/mycokeys.35.25271

Authors: Hai-Sheng Yuan, Xu Lu, Cony Decock

Abstract: Grammatus labyrinthinus gen. et sp. nov. is proposed based on DNA sequences data and morphological characteristics. It is known so far from southern, tropical China. The new species is characterised by an annual, resupinate basidiocarp with a shallow, subporoid hymenophore, a hymenium restricted to the bottom of the tubes, a dimitic hyphal system, presence of encrusted skeletocystidia and dendrohyphidia, longitudinally septate basidia and smooth, oblong-ellipsoid to cylindrical, acyanophilous basidiospores. Phylogenetic analyses based on ITS + nLSU DNA sequences data indicate that G. labyrinthinus belongs to Auriculariaceae in which it has an isolated position. Phylogenetic inferences show G. labyrinthinus to be related to Heteroradulum. However, the ITS sequences similarity between G. labyrinthinus and H. kmetii, the type species of Heteroradulum, were 89.84% and support the establishment of the new genus. Inversely, Heteroradulum semis clustered with G. labyrinthinus with strong support and it is transferred to Grammatus.

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Research Article Wed, 20 Jun 2018 08:57:45 +0300
Two novel species of Neoaquastroma (Parabambusicolaceae, Pleosporales) with their phoma-like asexual morphs https://mycokeys.pensoft.net/article/25124/ MycoKeys 34: 47-62

DOI: 10.3897/mycokeys.34.25124

Authors: Chayanard Phukhamsakda, Darbhe J. Bhat, Sinang Hongsanan, Jian-Chu Xu, Marc Stadler, Kevin D. Hyde

Abstract: The monotypic genus Neoaquastroma (Parabambusicolaceae, Pleosporales) was introduced for a microfungus isolated from a collection of dried stems of a dicotyledonous plant in Thailand. In this paper, we introduce two novel species, N. bauhiniae and N. krabiense, in this genus. Their asexual morphs comprise conidiomata with aseptate and hyaline conidia. Neoaquastroma bauhiniae has ascomata, asci and ascospores that are smaller than those of N. krabiense. Descriptions and illustrations of N. bauhiniae and N. krabiense are provided and the two species compared with the type species of the genus, N. guttulatum. Evidence for the introduction of the new taxa is also provided from phylogenetic analysis of a combined dataset of partial LSU, SSU, ITS and tef1 sequence data. The phylogenetic analysis revealed a distinct lineage for N. bauhiniae and N. krabiense within the family Parabambusicolaceae.

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Research Article Wed, 23 May 2018 10:08:03 +0300
Phylloporia lonicerae (Hymenochaetales, Basidiomycota), a new species on Lonicera japonica from Japan and an identification key to worldwide species of Phylloporia https://mycokeys.pensoft.net/article/23235/ MycoKeys 30: 17-30

DOI: 10.3897/mycokeys.30.23235

Authors: Wen-Min Qin, Xue-Wei Wang, Takuo Sawahata, Li-Wei Zhou

Abstract: Phylloporia, in the Hymenochaetaceae, is a polypore genus with a worldwide distribution. The new taxon Phylloporia lonicerae is introduced, which is the first Phylloporia species to originate from Japan. This species grows exclusively on living Lonicera japonica and is distinguished by annual, sessile basidiocarps that occur in clusters, pileal surface of narrow, concentrically sulcate zones, 6–8 pores per mm, duplex context separated by a black zone, dimitic hyphal system and broadly ellipsoid basidiospores, 3.2–4 × 2.3–3.1 µm. Phylogenetically, P. lonicerae is nested within the Phylloporia clade as a distinct terminal lineage with full statistical supports and sister to the clade of P. minutispora, P. cf. pulla and P. terrestris with weak supports. Besides Phylloporia bibulosa, P. chrysites and P. spathulata, P. lonicerae is the fourth species of Phylloporia recorded from Japan. An identification key to all accepted 48 species of Phylloporia is provided.

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Research Article Wed, 14 Feb 2018 08:50:45 +0200
A new checklist of lichenized fungi occurring in Thailand https://mycokeys.pensoft.net/article/12666/ MycoKeys 23: 1-91

DOI: 10.3897/mycokeys.23.12666

Authors: Kawinnat Buaruang, Kansri Boonpragob, Pachara Mongkolsuk, Ek Sangvichien, Kajohnsak Vongshewarat, Wetchasart Polyiam, Achariya Rangsiruji, Wanaruk Saipunkaew, Khwanruan Naksuwankul, Jutarat Kalb, Sittiporn Parnmen, Ekaphan Kraichak, Phimpisa Phraphuchamnong, Sanya Meesim, Theerapat Luangsuphabool, Phimpha Nirongbut, Vasun Poengsungnoen, Natwida Duangphui, Mattika Sodamuk, Supatra Phokaeo, Muthita Molsil, André Aptroot, Klaus Kalb, Robert Luecking, Thorsten Lumbsch

Abstract: A new revised checklist of lichenized fungi in Thailand is presented, including 1,292 species. Recent work on the taxonomy of these organisms in Thailand resulted in an enormous increase in our knowledge of the lichen biota of the country – the current checklist includes more than twice as many species as the previous catalogue published 15 years ago – and phylogenetic studies resulted in numerous changes in the generic classification of lichenized fungi. Hence, a new checklist is here presented summarizing the current knowledge of lichens in Thailand. Six new records are reported, viz. Acanthothecis salazinica, Bactrospora metabola, Buellia parastata, Diploschistes cinereocaesius, Rolfidium coccocarpioides, and Trapelia placodioides. Five previously recorded species, namely Lecanora carpinea, Platismatia glauca, P. lacunosa, P. tuckermanii and Roccella phycopsis are shown to be based on misidentifications and are excluded from the checklist. Three new combinations of species previously placed in Pertusaria to Lepra are proposed: L. bulolensis (A.W.Archer, Elix & Streimann) Schmitt & Lumbsch, L. patellifera (A.W.Archer) Schmitt & Lumbsch, and L. subventosa (Malme) Schmitt & Lumbsch. Asia, biodiversity, lichens, new records, taxonomy

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Checklist Fri, 9 Jun 2017 11:59:38 +0300
Rediscovery of Roesleria subterranea from Japan with a discussion of its infraspecific relationships detected using molecular analysis https://mycokeys.pensoft.net/article/4564/ MycoKeys 9: 1-9

DOI: 10.3897/mycokeys.9.6564

Authors: Yousuke Degawa, Tsuyoshi Hosoya, Kentaro Hosaka, Yumiko Hirayama, Yukiko Saito, Yan-Jie Zhao

Abstract: Roesleria subterranea, a distinctive hypogeous fungus, was collected from unidentified deciduous plant roots in red pine forests. The fungus had been documented several times in the past in Japan, but with no description. A description is given here based on specimens collected in Japan. The sequence of the D1-D2 region of the 28S rDNA obtained from the isolate was identical to those of the European and American specimens. Maximum parsimony analysis incorporating the present data and all other available ITS-5.8S sequences for R. subterranea showed that there are two infraspecific groups. One of them, composed of the isolates from Vitis spp. in Germany, Italy, and USA, was monophyletic. The other group, composed of isolates from deciduous trees in various countries, including Japan, was paraphyletic. The phylogenetic patterns indicate that the host may be more important than geographical distance for the genetic diversification of R. subterranea.

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Short Communication Wed, 21 Jan 2015 00:00:00 +0200
Cylindrocladiella hahajimaensis, a new species of Cylindrocladiella transferred from Verticillium https://mycokeys.pensoft.net/article/1189/ MycoKeys 4: 1-8

DOI: 10.3897/mycokeys.4.2619

Authors: Patrik Inderbitzin, Richard Bostock, Krishna Subbarao

Abstract: We used phylogenetic analyses based on ribosomal internal transcribed spacer (ITS) and beta-tubulin (TUB) sequences and determined that the correct name of ‘Verticillium hahajimaense’ was Cylindrocladiella hahajimaensis. A closest relative could not be determined, since C. hahajimaensis clustered within the C. infestans species complex, a poorly resolved group of taxa. Cylindrocladiella hahajimaensis differed from all other members of the C. infestans species complex by at least 18 substitutions at the two loci. Morphological characters supported the placement within Cylindrocladiella. In addition to the verticillate conidiophores mentioned in the type description, we found evidence for the presence of penicillate conidiophores. Other differences to the type description included the presence of yellow to brown-pigmented hyphae, and the hyaline instead of pigmented chlamydospores.

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Research Article Mon, 11 Jun 2012 00:00:00 +0300