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Abstract

Taxonomy of the Postia caesia complex is revised based on morphology and two genetic markers, ITS and tef1. In total, we recognize 24 species, multiplying the known species diversity in the complex. We provide descriptions for 20 temperate Northern Hemisphere taxa. Identity of the core species, P. caesia, is re-established, and a neotype from the type locality is selected. Four new combinations are proposed, and 10 new species are described: P. arbuti, P. auricoma, P. bifaria, P. comata, P. cyanescens, P. glauca, P. livens, P. magna, P. populi, and P. yanae.
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... Then, the subgenus Cyanosporus (McGinty) V. Papp was proposed for the species of P. caesia complex (Papp 2014). Miettinen et al. (2018) revised the species concept of the P. caesia complex based on morphology and two gene markers (ITS and TEF) and raised the species number of the complex to 24, including six species from China. ...
... Micro-morphological data were obtained from the dried specimens and observed under a light microscope following Cui et al. (2019) and Liu et al. (2021b). Sections were studied at a magnification up to × 1000 using a Nikon Eclipse 80i microscope and phase contrast Miettinen et al. 2018 illumination (Nikon, Tokyo, Japan). Drawings were made with the aid of a drawing tube. ...
... Morphologically, C. submicroporus share similar pores and basidiospores with C. rigidus, but C. submicroporus differs by having cream to pinkish buff pileal surface and white to smoke grey pore surface when fresh, buff to buff-yellow pileal surface and buff to olivaceous buff pore surface when dry. Cyanosporus auricomus and C. luteocaesius resemble C. rigidus in morphology by producing yellow-colored basidiomata, but C. auricomus differs from C. rigidus by having a hirsute pileal surface and larger basidiospores (4.4-5.6 × 1.5-1.8 μm; Miettinen et al. 2018); C. luteocaesius differs from C. rigidus by having larger pores (3-5 per mm) and basidiospores (4.3-6.1 × 1.5-1.9 μm; Miettinen et al. 2018). ...
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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.
... Morphological routine of this study follows Miettinen et al. (2018). In all cases, 20 tramal hyphae and 30 basidiospores per specimen were measured. ...
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Article
Taxonomy of Spongipellis sensu stricto is revised based on morphological studies and DNA data. Here, the genus is accepted as a member of Meripilaceae, and it contains five species. Of them, S. spumea, the generic type, occurs in Europe, two species, S. ambiens (= Tyromyces sibiricus) and S. variispora sp. nov., are found in East Asia, and S. profissilis comb. nov., is reported from Central Europe, Siberia and Far East Asia. The North-American species, S. occidentalis, is reinstated as a separate species and redescribed here based on historical material.
... Morphological routine of this study follows Miettinen et al. (2018). In all cases, 20 tramal hyphae and 30 basidiospores per specimen were measured. ...
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Article
Taxonomy of Spongipellis sensu stricto is revised based on morphological studies and DNA data. Here, the genus is accepted as a member of Meripilaceae, and it contains five species. Of them, S. spumea, the generic type, occurs in Europe, two species, S. ambiens (= Tyromyces sibiricus) and S. variispora sp. nov., are found in East Asia, and S. profissilis comb. nov., is reported from Central Europe, Siberia and Far East Asia. The North-American species, S. occidentalis, is reinstated as a separate species and redescribed here based on historical material.
... Fr. (McGinty 1909), but it was not accepted in subsequent studies (Donk 1960;Jahn 1963;Lowe 1975). Then the Postia caesia complex was mentioned based on recent molecular phylogenetic studies (Ţura et al. 2008;Miettinen et al. 2018). Papp (2014) proposed the combination Postia subg. ...
Article
The brown-rot fungi play an important role in forest ecosystems; they can degrade celluloses and hemicelluloses of wood and maintain nutrient cycling. Some of the brown-rot fungi also have important economic value as medicinal or edible mushrooms. Recent studies showed that the ability to produce brown rot has evolved independently at least five times. Nevertheless, the Polyporales contains the vast majority of the species of the brown-rot fungi. In this study, the classification system of the brown-rot fungi within the Polyporales is revised. Furthermore, the phylogenetic relationships of brown-rot fungi within the Polyporales are analysed based on DNA sequences of multiple loci including the internal transcribed spacer (ITS) regions, the large subunit nuclear ribosomal RNA gene (nLSU), the small subunit nuclear ribosomal RNA gene (nSSU), the small subunit mitochondrial rRNA gene sequences (mtSSU), the translation elongation factor 1-α gene (TEF1), the RNA polymerase II largest subunit (RPB1) and the second subunit of RNA polymerase II (RPB2). The study showed that the brown-rot fungi within the Polyporales formed fourteen lineages, which are assigned at family level, including four new families: Auriporiaceae, Piptoporellaceae, Postiaceae, Taiwanofungaceae, and ten existing families: Adustoporiaceae, Dacryobolaceae, Fibroporiaceae, Fomitopsidaceae, Laetiporaceae, Laricifomitaceae, Phaeolaceae, Pycnoporellaceae, Sarcoporiaceae, and Sparassidaceae. Meanwhile, eleven new genera, viz., Austroporia, Aurantipostia, Austropostia, Daedalella, Nothofagiporus, Pseudoantrodia, Pseudofomitopsis, Rhodoantrodia, Tenuipostia, Wolfiporiella and Wolfiporiopsis are proposed; eighteen new species, viz., Amyloporia nivea, Antrodia subheteromorpha, Aurantipostia macrospora, Austropostia hirsuta, A. plumbea, A. subpunctata, Cystidiopostia subhibernica, Daedalella micropora, Fuscopostia subfragilis, Lentoporia subcarbonica, Melanoporia tropica, Neolentiporus tropicus, Phaeolus fragilis, Postia crassicontexta, Pseudoantrodia monomitica, Pseudofomitopsis microcarpa, Resinoporia luteola and Rhodonia subrancida are described; and twelve new combinations, viz., Austroporia stratosa, Austropostia brunnea, A. pelliculosa, A. punctata, Nothofagiporus venatus, Rhodoantrodia tropica, R. yunnanensis, Tenuipostia dissecta, Wolfiporiella cartilaginea, W. curvispora, W. dilatohypha and Wolfiporiopsis castanopsidis, are proposed. Illustrated descriptions of the new species are provided. Notes on the genera of brown-rot fungi within the Polyporales are provided.
... Екатеринбурге, характеризуются широким распространением в Евразии и мире. Cyanosporus populi -недавно описанный вид с голарктическим распространением, встречается от лесотундры до смешанных и широколиственных лесов, формируя плодовые тела преимущественно на Populus, реже на Acer, Alnus, Betula, Salix (Miettinen et al., 2018). Другой вид, Ganoderma resinaceum, в России встречается в европейской части и на Дальнем Востоке, тогда как на Урале известен только в широколиственных лесах Оренбургской обл. ...
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In Ekaterinburg City (Russia, the Urals), a total of 40 new and rare for Sverdlovsk Region species of Agaricomycetes were collected on alien woody plants. One of them, Botryobasidium rubiginosum, is first reported in Russia. For the first time, 22 species of Agaricomycetes were identified for Sverdlovsk Region (Ceriporia bresadolae, Coprinopsis romagnesiana, Crepidotus caspari, Cyanosporus populi, Daedalea dickinsii, Ganoderma pfeifferi, G. resinaceum, Geastrum lageniforme, Hymenochaete intricata, Hypochnicium wakefieldiae, Inonotus cuticularis, Laetiporus cremeiporus, Lyomyces juniperi, Melzericium udicola, Metuloidea fragrans, Microporus xanthopus, Phellinus rhamni, Pholiota lucifera, Radulomyces copelandii, Sanghuangporus lonicerinus, Steccherinum fimbriatellum).
... Polypores (Basidiomycota, Agaricomycetes) are wood-inhabiting macrofungi with a poroid hymenophore growing on living trees, dead standing trees, fallen trunks, rotten wood, stumps, roots of trees, and even soil but closely associated with trees (Gibertoni et al., 2016;Shen et al., 2019;Wu et al., 2022). They are the major group of wood-decomposing fungi playing a key role in the wood decomposition process, releasing carbon and nutrients from woody tissues (Palviainen et al., 2010;Berglund et al., 2011;Stokland and Larsson, 2011;Miettinen et al., 2016Miettinen et al., , 2018Huang et al., 2022). ...
Article
Background Polypores as components of forest ecosystems are an important group of wood-inhabiting fungi playing a key role in forest regeneration. Previously, studies on polypore funga and diversity were focused on limited areas within one land mass only. What are the polypore funga and species composition for large-scale of China, North America and Europe? The funga and species composition of polypores in the three land masses will supply an important source of reference for the distribution patterns of polypores at species level or higher taxa. In the present study the diversity and species composition of polypores in China, North America and Europe are compared based on published data. Methods The species diversity, species composition, major genera and nutritional modes of polypores in the three land masses are comparatively analyzed. Results A grand total of 1,337 polypore species, belonging to 11 orders, 43 families and 168 genera, have been recorded in these three land masses of the Northern Hemisphere, of which 854 species occur in China, 547 species in North America, and 432 species in Europe. Polyporales, Hymenochaetales and Russulales are the three major orders, and Hymenochaetaceae, Polyporaceae, and Fomitopsidaceae are the three major families. The brown rot fungi Antrodia and Postia have highest number of species at generic level in the three land masses. The proportionally highest number of white rot polypore species is in China (78.81%), followed by North America (73.86%) and then Europe (67.82%); conversely, the proportion of brown rot polypores is highest in Europe (28.47%) then North America (21.39%) and then China (15.57%). Conclusions China had the highest polypore diversity followed by North America, and then Europe although North America is around twice as big as China and Europe. White rot is the major nutritional mode of all the polypores in China, North America and Europe accounting for 77.04% of all polypore species. The white rot species as a proportion of all polypores in each of the three land masses are highest in China, followed by North America and then Europe. The polypore diversity patterns are probably due to tree species diversity and the distribution patterns of angiosperm and gymnosperm trees in the three land masses. More tree species and diverse forest types are in China than those in North America and Europe, and these factors may correspond polypore funga and species composition in the three land masses.
... Morphological descriptions are based on eld notes and herbarium specimens. The microscopic analysis follows Miettinen et al. (2018). Sections were studied at a magni cation of up to 1000× using a Nikon Eclipse 80i microscope and phase contrast illumination. ...
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Phylogenetic and morphological analyses on Spongipellis and its micromorphological similar genera, Irpiciporus , Pseudospongipellis and Radulodon , were carried out. Phylogenies on Spongipellis are reconstructed with multiple loci DNA sequences including the internal transcribed spacer regions (ITS), the large subunit (nLSU) and the small subunit (nSSU) of nuclear ribosomal RNA gene and the translation elongation factor 1-α gene ( TEF1 ). The results demonstrate the polyphyly of Spongipellis , including two genera belong to different families, Pseudospongipellis gen. nov. is established including three new combinations. Three new species, Irpiciporus sinuosus , Radulodon yunnanensis and Spongipellis quercicola spp. nov., are described and illustrated.
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Phylogenetic and morphological analyses on Spongipellis and its micromorphological similar genera, Irpiciporus, Pseudospongipellis, and Radulodon, were carried out. Phylogenies on Spongipellis are reconstructed with multiple loci DNA sequences including the internal transcribed spacer (ITS) regions, the large subunit (nLSU), and the small subunit (nSSU) of nuclear ribosomal RNA gene and the translation elongation factor 1-α gene (TEF1). The results demonstrate the polyphyly of Spongipellis, including two genera nested in the different family clades. Pseudospongipellis gen. nov. is established including three new combinations. Three new species, Irpiciporus sinuosus, Radulodon yunnanensis, and Spongipellis quercicola spp. nov., are described and illustrated. A key to the Spongipellis and its micromorphological similar genera is provided.
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To date, the results of studying the species diversity of fungi – basidial macromycetes for five protected areas of the Khabarovsk Territory have been published. 711 species have been recorded in the Bolshekhekhtsirsky Reserve, 245 – in Botchinsky, 133 – in Bureinsky, 367 – in Komsomolsky, and 390 – in Anyui National Park. Rare (protected) species were noted in each of the studied protected areas. An assessment of the degree of knowledge of mycobiots using various approaches showed that if mycological research is continued in any large protected area of the Khabarovsk Territory, there is a significant potential for replenishing the species list and interesting finds, including at the regional and macro regional levels.
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A new polypore, Postia duplicata, collected in Yunnan and Zhejiang provinces, is described and illustrated on the basis of morphological and molecular characters. Postia duplicata is characterized by pileate basidiomata with pale brownish to brown pore surface when bruised, duplex context, a monomitic hyphal system with clamped generative hyphae, presence of gloeocystidia in the hymenium, and cylindrical basidiospores (3.8-5.8 × 1.8-2.5 μm). Both morphological and molecular evidence confirmed the placement of the new species in Postia and showed its phylogenetic relationships.