AGARICA

Cuphophyllus monteverdae and C. hygrocyboides (Hygrophoraceae, Agaricales) in Norway and Sweden

Ellen Larsson — 2023-06-01

Two poorly known and relatively rare waxcaps Hygrocybe monteverdae and Cuphophyllus hygrocyboides are described, with
notes regarding their distribution and ecological preferences in Norway and Sweden. H. monteverdae is a whitish species originally described from the Canary Islands, characterized by the darkening lamella upon drying. It resembles a slender C. pratensis in
habitus but is whitish. C. hygrocyboides also resembles C. pratensis in both colour and habitus but can be separated based on morphology. C. hygrocyboides is found in calcareous semi-natural grasslands, especially pastures, and also in the low alpine zone and higher alpine vegetation. It is not found below the mid-boreal zone even if it has been found at sea level in the northern part of Norway. H. monteverdae seems to be a strict lowland species found in semi-natural grasslands, alvar vegetation, and open grazed forests on calcareous ground. Phylogenetic analysis shows that H. monteverdae belongs in Cuphophyllus, and the new combination to Cuphophyllus is here proposed.

Telamonioid species of Cortinarius, section Safranopedes in Norway with emphasis on species in calcareous Tilia forests

Tor Erik Brandrud — 2023-06-01

The Cortinarius (telamonioid) species of sect. Safranopedes (= sect. Rubricosi s. auct.) in Norway are presented, with emphasis on our calcareous Tilia forest species. Altogether 15 species from the section are now known from Norway. Most of these species must be regarded as so far little known, overlooked or misidentified. The species can be sorted in four groups in Norway; (i) more or less habitat-specific calcareous Tilia forest species (Cortinarius elaphinicolor, C. epipurrus, C. milvinicolor, C. parhonestus), (ii) small species in rich Corylus-Quercus-Tilia forests (C. russulaespermus, C. subexitiosus, C. sub-scotoides), (iii) small species mainly in conifer forests or with Betula (C. annae-maritae, C. comptulus, C. nigrocuspidatus, C. aff. pauper-culus, C. subobtusus) (iv) very small taxa associated mainly with Salix spp., including arctic-alpine populations (C. paululus, C. pauperculus, C. scotoides). The calcareous Tilia forests taxa include the core group of sect. Safranopedes; medium-sized taxa with violet KOH-reaction in context and often radicate, saffron yellow spotted stipe and context. This core group includes C. epipurrus (= C. pseudosafranopes) which seems not uncommon in Europe, and three apparently widespread but rare species, only known from a few localities outside SE Norway: C. milvinicolor is distinguished on its initially olivaceous grey brown colours, C. parhonestus on more vivid fulvous colours and C. elaphinicolor being more or less intermediate. A presentation and nomenclatural discussion on the type species of the section, C. safranopes is included, although this species is so far not confirmed from Norway.

Desarmillaria ectypa ny for Norge

Teppo Rämä — 2023-06-01

Honningsopparten Desarmillaria ectypa ble funnet ny for Norge på Kvaløya i Tromsø i 30. juli 2022. Denne sjeldne soppen vokser på mellomrike til rike myrer på den nordlige halvkulen. Den kan identifiseres basert på habitat, mellomstore fruktlegemer med gule–brune farger, mangel av ring rundt stilken, skjell på midten av hatten, skiver med rosa fargenyanser og hvite sporer. Artens økologi, distribusjon og rødlistestatus er diskutert samt myrhonningsopp foreslått å bli brukt som det norske navnet til soppen.

Arrhenia schistidicola (Hygrophoraceae, Agaricales) – a new species on the moss Schistidium crassipilum from western Norway

Dag Olav Øvstedal — 2023-06-01

The new species Arrhenia schistidicola Øvstedal & L.Lindblom is described from Western Norway, growing on the moss Schistidium crassipilum on vertical mortar walls. Arrhenia schistidicola is characterized by the lack of a stipe, molecular evidence, and its host moss. It is morphologically similar to A. retiruga, however, molecular analyses show that it is more closely related to A. spathulata.

How long and how frequent is sufficient? Long time study (2003-2022) of variation in occurrence, species richness and fructification of grassland-fungi in a semi-natural grassland in South-Western Norway

Per Fadnes — 2023-06-01

The semi natural grassland described in this paper, Hovaneset in Stord municipality, South-Western Norway, has been examined for grassland fungi for 20 years, from 2003 until today (2022). This has resulted in the discovery of 92 different species after a total of 180 visits to the locality. Change in the frequency of survey to approximately a weekly visit during the seasons from 2010 resulted in a large increase in species diversity, also of red-listed species. During these last 13 years of survey, the total number of species more than doubled, and the number of red-listed species more than tripled, which clearly shows the huge effect in changing the frequency of visits to a visit once a week during the season. The survey also clearly shows that the number of finds during a visit varies greatly from year to year and from week to week. In an optimal year for grassland fungi, around 70% of the species that grow there can be found in a weekly survey throughout the season, while a less good year gives a maximum of 40% finds. The survey also shows that the time of
visit in a particular year is decisive for how many species are found in one visit. In an optimal year for grassland fungi, at the best possible match with time of survey, you can find up to 50% of the species growing there in one visit, but more likely it will be around 35%. It therefore shows very clearly that visits during the whole season is necessary to get hold on all fungi growing here. The survey also shows that many grassland fungi have very irregular fructification from one year to the other, which particularly applies to species within the genera Clavaria and Entoloma. Only ten species were found each year during the survey, most of which
were waxcaps (Hygrocybe s.l.), while 14 species were only found in one of the years of survey. The time of fruiting also seems to have changed during the 20 years the survey has been ongoing. The week with the highest number of species recorded in 2021/22 is approximately 3-4 weeks later than it was in 2013/14. This is particularly clear for the genus Entoloma, which normally has an early and limited fruiting period.

Entoloma species of subgenus Cyanula (Tricholomatinae, Basidiomycota) in Norway, with emphasis on habitat preferences and distribution

Tor Erik Brandrud — 2023-06-01

This is the third paper with results from the Norwegian Entoloma project 2015-2017. An overview is given of the species of Entoloma
subgenus Cyanula in Norway. Cyanula includes, among other elements, many grassland fungi. This paper is part of a larger study
concerning the European species of the subgenus Cyanula, including a multigene phylogeny that will be published in due course.
Furthermore, a monograph with updated taxonomic revision is recently issued. This paper focuses mainly on the species recorded from Norway with help of ITS DNA barcoding, with reference to recent collections also from Northern Sweden, with extensive notes of their habitat requirements and distribution. Altogether 53 Cyanula species are presented here, with an updated circumscription and naming. More than half of these are reported new to Norway since the start of the Norwegian Entoloma project. Of these, 18 have been described as new during the last three years, largely based on Norwegian material. Four of these are known exclusively from Scandinavia.

The Inocybe-Conocybe workshops at Dombås 2021-2022

Tor Erik Brandrud — 2023-06-01

Some results from the Inocybe(-Conocybe) workshops at Dombås 2021-2022 are presented, with emphasis on the 2021 Inocybe
results, based on extensive ITS-DNA sequencing and phylogenetic analyses. Among the 60 Inocybe s. lat. species sequence-verified in 2021, 30 were new to Norway. Most species were found in subalpine tall-herb Betula forests and calcareous low alpine Betula
nana-Salix thickets, and more than half of the species are believed to be preferentially alpine-subalpine taxa.

Bartlett P., Eberhardt U. & Beker H.J. Demystifying Hebeloma: introducing hebeloma.org and its database

Peter Bartlett — 2023-06-01

Introduksjon av hebeloma.org dens database.

The diversity and seasonality of the indoor mycobiome

Eva Lena Fjeld Estensmo — 2023-06-01

The importance of invertebrates on fungi in dead wood

Lisa Fagerli Lunde — 2023-06-01

Myxomycetes. Biology, Systematics, Biogeography and Ecology 2nd Edition – 2021

Edvin Johannesen — 2023-06-01

The Myxomycetes of Great Britain and Ireland. An Identification Handbook. Bruce Ing. New enlarged edition. 2020.

Edvin Johannesen — 2023-06-01

Two new richly illustrated Cortinarius books (fungas), and some thoughts about the new species of Cortinarius lacking in funga books

Tor Erik Brandrud — 2023-06-01

Redaksjonelt

Anders K. Wollan — 2023-06-01