ALBERT

Description: Inocybe mixtilis constitutes a complex of species characterized by nodulose-angulose spores, absence \nof cortina and a more or less bulbous marginate stipe that is not darkening when desiccated. In order to elucidate \nspecies limits within the I. mixtilis complex, an ITS-RPB2 phylogeny was performed and interpreted using morphological and ecological characters. Six supported clades were obtained in our analyses that correspond to I. mixtilis, \nI. subtrivialis, and four new species to science: I. ceskae, I. johannis-stanglii, I. nothomixtilis and I. occulta. Species \nwithin this complex can be morphologically recognized through a unique combination of morphological characters, \nsuch as the spore shape, cystidial length and shape, presence and development of the velipellis and pileus colour \nand viscidity. Nevertheless, those characters overlap, especially among I. mixtilis, I. ceskae and I. occulta, and \nintermediate collections are therefore more reliably identified through ITS-sequencing. Two species, I. ceskae and \nI. occulta are present in both North America and Europe, while the rest are so far only known in Europe, or Europe \nand Asia (I. mixtilis). All species, except I. johannis-stanglii, seem to be able to establish ectomycorrhizal association both with conifers and ang

Description: Marasmiellus phaeomarasmioides, a new species growing on bark of Juniperus thurifera trees in Spain, is described and illustrated. Besides, it is compared with other related species of subsect. Sphaerosporini Singer, viz. M. guzmanii Singer and M. parlatorei Singer.

Description: Novel species of fungi described in this study include those from various countries as follows: Australia: Banksiophoma australiensis (incl. Banksiophoma gen. nov.) on Banksia coccinea, Davidiellomyces australiensis (incl. Davidiellomyces gen. nov.) on Cyperaceae, Didymocyrtis banksiae on Banksia sessilis var. cygnorum, Disculoides calophyllae on Corymbia calophylla, Harknessia banksiae on Banksia sessilis, Harknessia banksiae-repens on Banksia repens, Harknessia banksiigena on Banksia sessilis var. cygnorum, Harknessia communis on Podocarpus sp., Harknessia platyphyllae on Eucalyptus platyphylla, Myrtacremonium eucalypti (incl. Myrtacremonium gen. nov.) on Eucalyptus globulus, Myrtapenidiella balenae on Eucalyptus sp., Myrtapenidiella eucalyptigena on Eucalyptus sp., Myrtapenidiella pleurocarpae on Eucalyptus pleurocarpa, Paraconiothyrium hakeae on Hakea sp., Paraphaeosphaeria xanthorrhoeae on Xanthorrhoea sp., Parateratosphaeria stirlingiae on Stirlingia sp., Perthomyces podocarpi (incl. Perthomyces gen. nov.) on Podocarpus sp., Readeriella ellipsoidea on Eucalyptus sp., Rosellinia australiensis on Banksia grandis, Tiarosporella corymbiae on Corymbia calophylla, Verrucoconiothyrium eucalyptigenum on Eucalyptus sp., Zasmidium commune on Xanthorrhoea sp., and Zasmidium podocarpi on Podocarpus sp. Brazil: Cyathus aurantogriseocarpus on decaying wood, Perenniporia brasiliensis on decayed wood, Perenniporia paraguyanensis on decayed wood, and Pseudocercospora leandrae-fragilis on Leandra fragilis. Chile: Phialocephala cladophialophoroides on human toe nail. Costa Rica: Psathyrella striatoannulata from soil. Czech Republic: Myotisia cremea (incl. Myotisia gen. nov.) on bat droppings. Ecuador: Humidicutis dictiocephala from soil, Hygrocybe macrosiparia from soil, Hygrocybe sangayensis from soil, and Polycephalomyces onorei on stem of Etlingera sp. France: Westerdykella centenaria from soil. Hungary: Tuber magentipunctatum from soil. India: Ganoderma mizoramense on decaying wood, Hodophilus indicus from soil, Keratinophyton turgidum in soil, and Russula arunii on Pterigota alata. Italy: Rhodocybe matesina from soil. Malaysia: Apoharknessia eucalyptorum, Harknessia malayensis, Harknessia pellitae, and Peyronellaea eucalypti on Eucalyptus pellita, Lectera capsici on Capsicum annuum, and Wallrothiella gmelinae on Gmelina arborea. Morocco: Neocordana musigena on Musa sp. New Zealand: Candida rongomai-pounamu on agaric mushroom surface, Candida vespimorsuum on cup fungus surface, Cylindrocladiella vitis on Vitis vinifera, Foliocryphia eucalyptorum on Eucalyptus sp., Ramularia vacciniicola on Vaccinium sp., and Rhodotorula ngohengohe on bird feather surface. Poland: Tolypocladium fumosum on a caterpillar case of unidentified Lepidoptera. Russia: Pholiotina longistipitata among moss. Spain: Coprinopsis pseudomarcescibilis from soil, Eremiomyces innocentii from soil, Gyroporus pseudocyanescens in humus, Inocybe parvicystis in humus, and Penicillium parvofructum from soil. Unknown origin: Paraphoma rhaphiolepidis on Rhaphiolepsis indica. USA: Acidiella americana from wall of a cooling tower, Neodactylaria obpyriformis (incl. Neodactylaria gen. nov.) from human bronchoalveolar lavage, and Saksenaea loutrophoriformis from human eye. Vietnam: Phytophthora mekongensis from Citrus grandis, and Phytophthora prodigiosa from Citrus grandis. Morphological and culture characteristics along with DNA barcodes are provided.

Description: Bolbitius elegans spec. nov., a new species with gasteroid habit, is described and illustrated. Its taxonomic relationships with other taxa of Bolbitius and members of presumably related secotioid-gasteroid genera are discussed.

Description: This short note directs the attention towards a new section and its type species, and two new species of section Fragilipedes (Fr.) Qu\xc3\xa9l. Hydropus flocculinus is transferred to the genus Mycena.

Description: Hydropus paradoxus var. xerophyticus, characterized by its long cystidia, broad spores and habitat in xerophytic basic pastures with communities of Thymus-Lavandula spp. is described as a new taxon from Spain. In addition, a key to 22 taxa known from Europe is given.

Description: Entoloma exiguum sp. nov. is described. It belongs to subgenus Claudopus and is characterized by the tiny size, very reduced stipe, white colours of the fruit-bodies, tapering pileus hairs and spores with 6-8 angles. A discussion about some other close taxa is given, as well as drawings of micromorphological characters.

Description: A new Tubulicium species from Mediterranean evergreen forests of southern Spain is described, viz. Tubulicium papillatosporum G. Moreno & Esteve-Rav. It is characterized by its papillate basidiospores and habitat on bark of living Quercus canariensis.\nA bibliographical revision of this genus is presented, and the new combination Tubulicium macrosporum is proposed.

Description: Nine rare species of gasteroid and secotioid fungi from Sonora, Mexico are treated here: Agaricus texensis (= Longula texensis), Araneosa columellata, Calvatia bicolor, C. craniiformis, C. pygmaea, Disciseda hyalothrix, D. verrucosa, Endoptychum arizonicum, and D. stuckertii (= Abstoma stuckertii), which is a new combination.\nSEM micrographs of all studied taxa are included.

Description: The new species Gymnopilus arenophilus A. Ortega & Esteve-Rav. is described. It is characterized by its particular habitat in sandy, sometimes burned, soils of thermophilous Pinus forests. Macroscopically G. arenophilus resembles G. penetrans, from which it differs in the larger spores and the scarcely bitter taste. Microscopically G. arenophilus reminds of G. fulgens, with which it has probably been mistaken in the past. The latter species has very different macroscopical features, spore ornamentation and a paludicolous habitat. A discussion of European and some non-European related species is also given.