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Horad Pinsk, Belarus

Yurchenko E.,Paleski State University | Wu S.-H.,CSIC - National Museum of Natural Sciences

Hyphoderma moniliforme and H. nemorale, saprobically growing on wood, are recorded as new for mycobiota of China. Both species were collected in mountains at the altitudes of 1850-3000 m, from Yunnan Province (southwestern China). Hyphoderma moniliforme is also a new record for Eurasia, and previously known only from South Africa. The collections of H. nemorale in this study represent the most eastern and the most southern localities for this species known for Eurasia. Both species bear moniliform cystidia. Bayesian inference of phylogeny based on ITS and partial 28S nuclear ribosomal DNA sequences indicated that H. moniliforme is united in one clade with H. litschaueri from North America. 28S-based phylogram demonstrated that Chinese H. nemorale belong to the same clade with the holotype of this species collected from Europe. Morphology descriptions and illustrations for these two species are provided. © 2015. Source

Coelho G.,Federal University of Santa Maria | Antoniolli Z.I.,Federal University of Santa Maria | Yurchenko E.,Paleski State University

Tropicoporus is a recently proposed genus that was segregated from Inonotus s.l. and includes species with important wood decay and medicinal functions. The description of T. stratificans sp. nov. is based on more than 10 specimens collected on fallen decayed wood in subtropical forests of Rio Grande do Sul State. The species is recognized by its resupinate, poroid, golden brown, perennial basidiomes that become multi-layered, dimitic hyphal system, abundant hymenial setae, and subglobose to ellipsoid, brownish-yellow to ferruginous-brown basidiospores. Based on nrDNA ITS sequences, Bayesian and maximum likelihood phylogenetic analyses of Tropicoporus nested the new taxon in the T. linteus clade. A description and illustrations of the new species are provided. © 2016 Magnolia Press. Source

Yurchenko E.,Paleski State University | Wu S.-H.,CSIC - National Museum of Natural Sciences

A dichotomous key to all currently accepted species of Hyphodontia in the broad sense is presented. It consists of a key to genera (Alutaceodontia, Botryodontia, Chaetoporellus, Deviodontia, Hastodontia, Hyphodontia s. str., Kneiffiella, Lagarobasidium, Lyomyces, Palifer, Rogersella, Schizopora, Xylodon) and detailed keys to species level within genera. The key also includes taxa which were published under preliminary names (such as 'Hyphodontia species A') and some taxa which require taxonomic clarification (like Hyphodontia macrescens). Some recently describes Hyphodontia species are placed in the keys to Palifer and Xylodon due to their morphology. Source

Yurchenko E.,Paleski State University | Wu S.-H.,CSIC - National Museum of Natural Sciences
Mycological Progress

Descriptions, illustrations and phylogenetic analyses for three new taxa of Hyphodontia (Basidiomycota) are provided. Hyphodontia astrocystidiata sp. nov. was collected from warm-temperate mountain forests of Taiwan; H. microfasciculata sp. nov. was found in subtropical Taiwan, southern China, and northern Vietnam; H. vietnamensis sp. nov. was described from northern Vietnam. All three species have sterile projecting peg-like structures, consisting of encrusted hyphae. Hyphodontia astrocystidiata is characterized by Resinicium-like astrocystidia on subicular hyphae and astrocystidia-like hyphal ends in hymenium. Hyphodontia microfasciculata is distinguished by its small-sized ellipsoid spores and fine emergent fascicles composed of thin-walled, flexuous hyphae. The features of H. vietnamensis are subulate cystidia, cylindrical spores, and projecting, densely arranged slender clusters of acuminate hyphae. The morphology of crystal deposits on projecting hyphae in these three species was studied by means of scanning electron microscopy. Molecular phylogeny analyses were performed by maximum parsimony and Bayesian methods, both based on sequences of the internal transcribed spacer region of nuclear ribosomal DNA. The phylograms from both analyses confirm independent specific status of H. microfasciculata and H. vietnamensis. The former species sits in a subclade with Hyphodontia sambuci, the latter species is in another subclade with H. crustosa. Hyphodontia astrocystidiata is placed close to Schizopora paradoxa, but the two species are distinct in terms of morphology. © 2013 German Mycological Society and Springer-Verlag Berlin Heidelberg. Source

Yurchenko E.,Paleski State University | Wu S.-H.,CSIC - National Museum of Natural Sciences

Fibrodontia alba sp. nov. is described from central Taiwan. Its major diagnostic features are white, minutely and densely aculeate hymenial surface, colorless generative hyphae, colorless, in mass pale colored, narrow, moderately encrusted skeletal-like hyphae in aculeal trama and ellipsoid basidiospores. Bayesian inference of the phylogeny based on internal transcribed spacer (ITS) and partial 28S nuclear ribosomal RNA gene sequences showed that phylogenetic distance between F. alba and F. gossypina is near equal to the distance between morphologically well-delimited species, F. gossypina and F. brevidens. Morphology description, basidiomata photographs, micromorphology drawings and scanning electron microscopic images of crystalline deposits on skeletal-like hyphae, are provided for the new species. A key to the all known species of Fibrodontia is provided. © 2013 The Mycological Society of Japan. Published by Elsevier B.V. All rights reserved. Source

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