Category Archives: Volume 57(1-2) 2017

Hymenochaete and Hymenochaetopsis (Basidiomycota) in Europe

Authors: Corfixen, Peer & Parmasto, Erast
Journal: Karstenia, Volume 57 (2017), Issue 1-2, pages 49-80.
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Key words: Hymenochaete, Hymenochaetopsis, mycogeography, host-variation

Abstract: Fourteen species of Hymenochaete and three species of Hymenochaetopsis from Europe are treated, including their distribution and host characteristics. Four new species are described, viz. Hymenochaete canescens, H. jaapii, H. pilatii and H. rhododendri. Two species are new for Europe, viz. Hymenochaete longispora and Hymenochaetopsis laricicola.

Aphyllophoroid fungi (Basidiomycota) in forests of the middle part of Luga River valley, Leningrad Oblast, Russia

Authors: Volobuev, Sergey & Arzhenenko, Alexandra
Journal: Karstenia, Volume 57 (2017), Issue 1-2, pages 37-47.
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Key words: poroid fungi, corticioid fungi, biodiversity, threatened species, indicator species, Leningrad Oblast, Europe, Russia

Abstract: An annotated list of 119 aphyllophoroid macromycetes is presented. The material was collected in different forests of the planned conservation area of Yashchera-Lemovzha in Luga and Volosova Districts (Leningrad Oblast, Russia). The rare species Odonticium septocystidia is recorded for the second time from Leningrad Oblast, and the findings of Crustomyces subabruptus and Intextomyces contiguus are the third ones, the two earlier records were made more than a decade earlier. Occurences of indicator species of coniferous old-growth forests (Amylocystis lapponica, Crustoderma dryinum, Dichostereum granulosum, Fomitopsis rosea, Junghuhnia collabens, Phellinus ferrugineofuscus, Phlebia centrifuga, and Pycnoporellus fulgens) and deciduous forests (Dentipellis fragilis, Gloeoporus pannocinctus, Granulobasidium vellereum, Junghuhnia pseudozilingiana, Hydnocristella himantia, and Rigidoporus crocatus) confirm a high conservation value of the study area. Eight red-listed species for Leningrad Region were noted. All of them are new for the study area.

Bryoscyphus hyalotectus (Helotiales), a new polytrichicolous ascomycete from North America

Authors: Huhtinen, Seppo & Döbbeler, Peter
Journal: Karstenia, Volume 57 (2017), Issue 1-2, pages 33-36.
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Key words: Bryophilous fungi, Canada, muscicolous, Polytrichum juniperinum

Abstract: Bryoscyphus hyalotectus (Helotiales, Ascomycota) is presented as a new species based on a single collection from Canada. It infects the moss Polytrichum juniperinum. Apothecia occuby a special microniche on the host plant. They develop between the leaf lamellae where the inflexed leaf margins meet. The parasite is distinguished by intracellular haustoria that arise directly from superficial hyphae without intervention of appressoria.

Greenhouse culture experiments on Kuehneromyces mutabilis

Authors: Issakainen, Jouni & Pihlaja, Kati & Smolander, Jenni
Journal: Karstenia, Volume 57 (2017), Issue 1-2, pages 17-32.
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Key words: Kuehneromyces mutabilis, Strophariaceae, mushroom cultivation, culture methods, edible, boreal, low-tech, wood decay

Abstract: The edible, wood-decaying mushroom Kuehneromyces mutabilis was studies in 3 years’ culture experiments in a climate-controlled greenhouse. Pre-incubated wood blocks and sawdust cylinders were buried in soil in test buckets. Tested variables included interstrain variation, inoculation methods, wood disinfectation, dimensions of wood blocks and mixtures of soil. K. mutabilis readily colonized various kinds of wood blocks and produced fruiting bodies regularly in unsterile culture conditions. It was found to be a promising species for low-tech culturing assuming further collection of efficient strains and refinement of methods. Sterilized sawdust bricks submerged in soil were most effective for strain testing. Blocks of young trees, including thin branches yielded well, suggesting that the species can be cultured on fractions of wood which have been considered less valuable in traditional forestry. Pasteurization of the wood blocks shortly in boiling water and adding the spawn as potato jelly were found to be useful, low-cost methods of inoculation. Too much acidic peat in the soil mixture was unfavorable for the production but its effects were compensated by adding CaCO3 in the soil.

Lophiotrema borealiforme, a new species close to L. boreale

Authors: Mathiassen, Geir & Granmo, Alfred & Stensrud, Øyvind
Journal: Karstenia, Volume 57 (2017), Issue 1-2, pages 11-15.
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Key words: Acomycota, Lophiotremataceae, Sweden, taxonomy

Abstract: Lophiotrema borealiforme (Ascomycota, Lophiotremataceae) is described as a new species. The description is based mainly on the holotype collection, but also on the eight other known specimens. Similarities and differences to the closest related species, Lophiotrema boreale, are descriped. Lophiotrema borealiforme is only known from southeastern, and the very southern part of Sweden.

Inocybe lemmi, a new species of section Marginatae from the alpine region of Sweden

Authors: Larsson, Ellen & Vauras, Jukka & Cripps, Cathy L.
Journal: Karstenia, Volume 57 (2017), Issue 1-2, pages 1-9.
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Abstract: A new species, Inocybe lemmi, is described from alpine areas of Sweden. It is closely related to I. candidipes, associated with Pinus ponderosa and described from the south-western United States. Both belong to the I. praetervisa group in section Marginatae, reserved for species characterized by a stipe with abundant caulocystidia in the upper half, which are sparce in lower half of the stipe. Other species in the I. pratervisa group have distinctly nodulose heterodiametric spores, while I. lemmi and I. candipes have basally nodulose to angular spores with an elongated apex. A single collection from the alpine zone in Colorado was identified as representing a third lineage, closely related to I. lemmi and I. candipes. The holotype of the recently descriped species, I. tundrae, was studies and is confirmed to be a later synomym of I. rivularis.