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The authors describe ten new taxa for science using mostly both morphological and molecular data. In Ascomycota, descriptions are provided for Bambusistroma didymosporum gen. et spec. nov. (Pleosporales), Neodeightonia licuriensis sp. nov. (Botryosphaeriales) and Camposporium himalayanum sp. nov. (Fungi imperfecti). In Zygomycota, Gongronella guangdongensis sp. nov. (Mucorales) is described. Finally, in Basidiomycota descriptions are provided for Boidinia parva sp. nov. and Russula katarinae sp. nov. (Russsulales), Gloiocephala parvinelumbonifolia sp. nov. (Agaricales), Hypochnicium austrosinensis sp. nov. (Polyporales), Phallus ultraduplicatus sp. nov. (Phallales) and Suillus lariciphilus sp. nov. (Boletales).
Three new species of Hymenochaete from Russian Far East are described based on morphological and ITS rDNA data. Hymenochaete adhaerens sp. nov. is a resupinate species closely related to H. macrospora, from which it differs in having longer basidiospores and setae. The basidiocarps of H. cupulata sp. nov. are effused-reflexed, resembling those of the European H. ulmicola, from which it differs in having setae inflated at the basal part and shorter basidiospores. Both H. adhaerens and H. cupulata inhabit bark of living elm trees (Ulmus spp.). H. manshurica sp. nov. is resupinate and morphologically similar to the North American H. corticolor, from which it differs in having narrower setae and basidiospores; it has been collected from bark of living Tilia manshurica.
Eight species belonging to Bulbothrix Hale from NE Argentina were studied. Among them, Bulbothrix affixa (Hale & Kurok.) Hale is a new continental record, and five species, viz. B. cassa Jungbluth, Marcelli & Elix, B. coronata (Fée) Hale, B. isidiza (Nyl.) Hale, B. laeviuscula (Räsänen) Benatti & Marcelli, and B. tabacina (Mont. & Bosch) Hale, are new citations for the country. The specimens are described, commented, and illustrated. A key for species identification is also presented.
A short history to the study of Russula in the Western United States is provided and for the first time an exhaustive list of all 49 taxa described from this part of the country has been compiled. As a start to a revision of these species, a first series of four holotypes (one from California and three from the Pacific Northwest) have here been studied microscopically, resulting in some very substantial changes concerning species concept and consequent systematic placement. Russula flava var. pacifica appears unrelated to the type variety. It is therefore excluded as member of Integroidinae, subgen. Polychromidia, and deserves probably to be upgraded to species level within subgen. Russula. The Californian R. paxilloides is lectotypified and is a good member of subgen. Russula, but is closer to sect. Persicinae than to the white-spored Vinaceae as previously suggested. Russula maxima, widely accepted as a species of subsect. Subcompactinae (subgen. Heterophyllidia), certainly does not belong there and has to be moved to subgen. Polychromidia. Finally, R. inconstans is here maintained as member of subg. Polychromidia.
Three collections of coelomycetes producing brown spores have been subjected to morphological and molecular data analyses. Two of them have phragmosporous conidia and are morphologically similar to Camarosporium hederae which has the distinct morphology of Camarosporium sensu stricto. The other collection with muriform conidia is morphologically similar to Camarosporium sensu stricto but has paraphyses. Based on morphology and molecular data analyses of combined LSU and SSU rDNA sequences, two new genera are introduced viz. Phragmocamarosporium (in Lentitheciaceae) and Suttonomyces (in Massarinaceae).
An ophiosphaerella-like species was collected from dead stems of a grass (Poaceae) in Northern Thailand. Combined analysis of LSU, SSU and RPB2 gene data, showed that the species clusters with Lentithecium arundinaceum, Setoseptoria phragmitis and Stagonospora macropycnidia in the family Lentitheciaceae and is close to Katumotoa bambusicola and Ophiosphaerella sasicola. Therefore, a monotypic genus, Poaceascoma is introduced to accommodate the scolecosporous species Poaceascoma helicoides. The species has similar morphological characters to the genera Acanthophiobolus, Leptospora and Ophiosphaerella and these genera are compared.
Two cuboid-spored species of Entoloma (E. laccarioides and E. parvifructum) are described from S-China. Entoloma laccaroides is recognized by the umbilicate and whitish pileus, cuboid basidiospores, numerous conspicuous broadly fusoid to utriform pleurocystidia, cutis-like pileipellis with intracellular pigment, and presence of clamp connections. Entoloma parvifructum is characterized by the small, conico-convex and pale brown to brown pileus, comparatively large cuboid basidiospores, and cutis-like pileipellis with intracellular and encrusting pigment. The phylogenetic position and taxonomic relationships of E. laccaroides are compared and discussed with nrLSU sequences reported for various other cuboid-spored species kept in GenBank.
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