Notes on Heterobasidiomycetes from St. Helena

In total, 7 species of heterobasidiomycetes are reported for the first time from St. Helena. A new genus Dendrogloeon (Auricularilaes) is introduced for the new species D. helenae based on both DNA and morphological data. Saccoblastia media, sp. nova, is the sole representative of the Pucciniomycotina, so far found in the study area.Non peer reviewe

On six African species of Lyomyces and Xylodon

Peer reviewe

A new polypore Irpex cremicolor described from North Europe

Irpex cremicolor, a poroid basidiomycete, is described as new based on collections from old-growth forests in northern Finland and Norway. It is characterised by a resupinate habit, lacerate pores, and a dimitic hyphal system. Most of the septa are simple, but scattered clamps are present. The species reminds of the North American Oxyporus similis, which is re-described and compared to the closely reminiscent O. obducens. These two are often considered synonyms, but they are kept separate here on account of minor differences in their hyphal and spore characteristics.Irpex cremicolor, a poroid basidiomycete, is described as new based on collections from old-growth forests in northern Finland and Norway. It is characterised by a resupinate habit, lacerate pores, and a dimitic hyphal system. Most of the septa are simple, but scattered clamps are present. The species reminds of the North American Oxyporus similis, which is re-described and compared to the closely reminiscent O. obducens. These two are often considered synonyms, but they are kept separate here on account of minor differences in their hyphal and spore characteristics.Irpex cremicolor, a poroid basidiomycete, is described as new based on collections from old-growth forests in northern Finland and Norway. It is characterised by a resupinate habit, lacerate pores, and a dimitic hyphal system. Most of the septa are simple, but scattered clamps are present. The species reminds of the North American Oxyporus similis, which is re-described and compared to the closely reminiscent O. obducens. These two are often considered synonyms, but they are kept separate here on account of minor differences in their hyphal and spore characteristics.Peer reviewe

A phylogenetic analysis of Antrodia s.l. based on nrDNA ITS sequences, with emphasis on rhizomorphic European species

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On Protomerulius and Heterochaetella (Auriculariales, Basidiomycota)

The taxonomy of Protomerulius and Heterochaetella is revised based on DNA data and morphological evidence, and their type species, P. brasiliensis and H. dubia, are proved to be congeneric. As a consequence, H. dubia and related species, of which four are described as new, are placed in Protomerulius. Heterochaete microspora is also combined in Protomerulius, and the genus concept is redefined to encompass effused species with smooth or spiny hymenophore and monomitic hyphal structure. Psilochaete multifora, gen. and spec. nov. is a distant relative of Protomerulius spp. found in Norway. Heterochaetella cystidiophora is re-collected in Brazil and placed in the synonyms of Heterochaete sanctae-catharinae. This species does not belong to the Protomerulius-Heterochaetella lineage, and it is transferred to Metulochaete, gen. nov.Peer reviewe

Vedboende sopp: betydning, økologi og utbredelse

Dette kompendiet er skrevet for å gi en oversikt over våre viktigste råtesopper og deres betydning både i økosystemet og forvaltningen av våre skoger. Råtesoppene har bestemte livskrav, og deres forekomst eller fravær forteller derfor noe om skogens tilstand og histori

Vedboende sopp: betydning, økologi og utbredelse

Dette kompendiet er skrevet for å gi en oversikt over våre viktigste råtesopper og deres betydning både i økosystemet og forvaltningen av våre skoger. Råtesoppene har bestemte livskrav, og deres forekomst eller fravær forteller derfor noe om skogens tilstand og histori

Neotropical Perenniporia: a new species, Perenniporia subovoidea sp. nov., from Costa Rica, new records of little known species, and a key to the species with a resupinate basidiome

Background and aims – This study is a part of an ongoing survey of Perenniporia (Basidiomycota, Polyporales) in the Neotropics. Methods – Material is examined and described using morphology-based methods. Key results – Perenniporia subovoidea is proposed as new. New records of little known species are presented. A key to the Perenniporia species with resupinate basidiome is also presented. Conclusion – Perenniporia subovoidea is reported from Costa Rica. New records of P. aurantiaca, P. chromatica, P. parvispora, P. roseo-isabellina, and P. xantha are presented. All these species are endemic to the Neotropical areas

The genus Grammothelopsis (Aphyllophorales, Basidiomycota)

A synopsis of Grammothelopsis Jülich (Aphyllophorales, Basidiomycota) is provided and G. neotropica Robledo & Ryvarden is described as new.Fil: Robledo, Gerardo Lucio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Ryvarden, Leif. University of Oslo; Norueg