Authors: Mathiassen, Geir & Granmo, Alfred & Rämä, Teppo
Journal: Karstenia, Volume 51 (2011), Issue 1, pages 17-22.
Doi: https://doi.org/10.29203/ka.2011.444
Full text: PDF
Key words: Ascomycota, Xylariales, Hypoxylon macrosporum, Finland, distribution, ecology, host preference, taxonomy

Abstract: Hypoxylon macrosporum P. Karst. is recorded for the first time from Finland. It was found on different species of Salix in nine localities in the north of the country, in the biogeographical provinces of Enontekiön Lappi, Inarin Lappi and Kittilän Lappi in 1995, 1996 and 2002. We also report new finds in Norway representing the hitherto northernmost known limit for the species in Fennoscandia. Hypoxylon macrosporum has a wide distribution, but is infrequent outside Scandinavia. In addition to Norway and Sweden, the species is known from France, Switzerland, Russia (Kola Peninsula and eastern Siberia), Iceland, Greenland, western United States and western Canada.

Authors: Ruotsalainen, Juhani & Huhtinen, Seppo
Journal: Karstenia, Volume 51 (2011), Issue 1, pages 23-30.
Doi: https://doi.org/10.29203/ka.2011.445
Full text: PDF
Key words: Russulaceae, Russula, Atropurpurea, Russula pyriodora, Finland, taxonomy

Abstract: A new species, Russula pyriodora, is described based on Finnish material. It is characterized by an appearance of R. betularum, but has a distinctive odour of pears. Other differentiating features, both macroscopical and microscopical, are also discussed. The new species is also compared with the type of R. alborosea, which is a likely synonym of R. mairei.

Authors: Kunttu, Panu & Kulju, Matti & Kotiranta, Heikki
Journal: Karstenia, Volume 50 (2010), Issue 2, pages 35-44.
Doi: https://doi.org/10.29203/ka.2010.439
Full text: PDF
Key words: Basidiomycetes, Finland, Archipelago Sea, corticioid fungi, taxonomy

Abstract: Peniophorella tsugae, Phlebiella alnicola and Trechispora araneosa are reported as new to Finland. New records of Hastodontia halonata, Helicogloea lagerheimii and Peniophorella echinocystis are presented and notes of the habitats and substrates are given. Descriptions of the new species and H. halonata are given as well as microscopical drawings. The taxonomy of P. alnicola is briefly discussed and comparison between Peniophorella pallida and P. tsugae is made. Most new Finnish records derive from SW Finland, from forested islands of the Archipelago Sea and mainland coastline. Inventories were carried out during late summer and autumn 2008 and 2009. Hastodontia halonata is reported as new to Estonia.

Authors: Josefsson, Torbjörn & Spirin, Wjacheslav A.
Journal: Karstenia, Volume 50 (2010), Issue 2, pages 45-52.
Doi: https://doi.org/10.29203/ka.2010.440
Full text: PDF
Key words: Fennoscandia, fungi, coarce wood debris, red-listed species, Anomoporia, Antrodia, Gleophyllum, Phlebia, Postia

Abstract: Wood-inhabiting fungi on Pinus sylvestris were examined in three old-growth forests in northern Sweden. A total of 16 rare species of aphyllophoroid fungi are reported. Among the species discussed are Antrodiella pallasii and Skeletocutis kuehneri which are successors of Trichaptum species and previously known from only a few localities in Sweden, and Byssoporia terrestris and Hydnellum gracilipeswhich are mycorrhizal species with specific ecological preferences. Three corticioid species from genera Ceraceomyces and Sistotrema represent possible new taxa.

Authors: Zmitrovich, Ivan V & Ezhov, Oleg N & Ershov, Roman V.
Journal: Karstenia, Volume 50 (2010), Issue 2, pages 53-58.
Doi: https://doi.org/10.29203/ka.2010.441
Full text: PDF
Key words: European Russia, Polyporus, salicicolous, morphometry, taxonomy

Abstract: New records of Polyporus pseudobetulinus on willow species from Arkhangelsk Region (North of European Russia) were made. The differences between P. pseudobetulinus and the similar P. choseniae are generalized, highlighting spore variability and hyphal system. The two species are rather distant from each other. P. pseudobetulinus is characterized by dimitic hyphal system with a predominance of fibre hyphae, lack of clamps, and somewhat sigmoid spores, whereas P. choseniae has dimitic hyphal system with a predominance of skeleto-binding hyphae, clamps, and symmetrically fusoid basidiospores. The ecological preferences and distribution patterns of both species are discussed.

Authors: Marsh, Tarja & Döbbeler, Peter & Huhtinen, Seppo & Stenroos, Soili
Journal: Karstenia, Volume 50 (2010), Issue 2, pages 59-72.
Doi: https://doi.org/10.29203/ka.2010.442
Full text: PDF
Key words: Ascomycetes, bryicolous fungi, hepaticolous fungi, Plagiochila asplenioides, P. porelloides

Abstract: Over 400 Finnish herbarium specimens of the hepatics Plagiochila asplenioides and the closely related P. porelloides were screened for the presence of fungi. The screening yielded ca. 200 recordings of bryicolous species belonging to the ascomycete genera Bryomyces, Dactylospora, Epibryon, Lichenopeltella, Octosporella, Pleostigma, and the anamorphic genus Epicoccum. With the exception of Epibryon plagiochilae, the species are new to Finland. They are described and illustrated. Their morphology, taxonomy and ecology are discussed and their distribution in Finland is mapped. A key is given to all known bryicolous fungi found on P. asplenioides (incl. P. porelloides).

Authors: Davey, Marie L.
Journal: Karstenia, Volume 50 (2010), Issue 1, pages 1-10.
Doi: https://doi.org/10.29203/ka.2010.436
Full text: PDF
Key words: Daldinia, conidiogenesis, pleomorphism, Nodulisporium, Xylariaceae

Abstract: During a survey of fungi occurring in soil from swift fox dens in a zoo enclosure in Alberta, Canada, a free-living xylariaceous mitosporic fungus was repeatedly isolated and is herein described as Annellosporium nemorosum gen. et sp. nov. The fungus is characterized by mononematous, dichotomously branched conidiophores with termini bearing groups of 1–3 cylindric, smooth to minutely roughened, enteroblastic, percurrently proliferating, annellated conidiogenous cells that produce sub-globose to obovate conidia with attenuated, flattened basal ends. Phylogenetic analysis of the ?-tubulin region indicates A. nemorosum has strong phylogenetic affinities to the teleomorphic genus Daldinia (Xylariaceae, Xylariales), and is included in a clade with those Daldinia species known to produce Nodulisporium-like anamorphs with enteroblastic conidiogenesis, rather than the holoblastic conidiogenesis typical of true Nodulisporium species. A teleomorphic state was not observed, but is expected to be Daldinia loculata-like, given the close affiliation between this species and A. nemorosum that was revealed by phylogenetic analyses of the internal transcribed spacer (ITS) region of rDNA.

Authors: Döbbeler, Peter
Journal: Karstenia, Volume 50 (2010), Issue 1, pages 11-23.
Doi: https://doi.org/10.29203/ka.2010.437
Full text: PDF
Key words: hepaticolous, hyperepiphyllous, necrotrophic parasitism, Hypocreales, taxonomy

Abstract: The bryophilous genus Bryocentria (Hypocreales, Ascomycetes), with three known species, is augmented by four new taxa. These are B. aequinoctialis, B. manubriataand B. merospora on epiphyllous Lejeuneaceae (Hepaticae) from Costa Rica, and B. septinensis on Sanionia uncinata (Musci) from Finland. Some new records of B. brongniartii and B. metzgeriae are also presented. Characters important at the generic level are the possession of small, lightly coloured, almost glabrous perithecia, a cellular cyanophilous excipulum often loosely covered by adjacent hyphae, numerous, eight-spored asci with delicate walls, tiny, two-celled ascospores of differing shapes with a cyanophilous septum or band-like structure in most species, and an obligate occurrence on bryophytes. All species, apart from the biotrophic B. brongniartii, are necrotrophic parasites that cause discoloured islet-like infections. Several species perforate the leaves of hepatics with their developing perithecia. Host species belong to different systematic and ecological groups of bryophytes, predominantly hepatics. Bryocentria merospora features a novel type of ascospore. After disarticulating, the globose partial spores concentrate in the ascus apex. The three hyperepiphyllous Bryocentria species demonstrate the wealth of nectrioid fungi in the phyllosphere of tropical rain forests.

Authors: Carbone, Matteo & Campo, Emanuele & Vauras, Jukka
Journal: Karstenia, Volume 50 (2010), Issue 1, pages 25-34.
Doi: https://doi.org/10.29203/ka.2010.438
Full text: PDF
Key words: Ascomycetes, Finland, Otidea, Pezizales, taxonomy

Abstract: Otidea mirabilis and O. tuomikoskii are described from Finnish material deposited in the main herbaria of Finland. Colour photographs, microdrawings and the known Finnish distribution of both species are given. O. mirabilis, originally described from Italy, is a new record for the mycoflora of North Europe.

Authors: Korhonen, Mauri & Liimatainen, Kare & Niskanen, Tuula
Journal: Karstenia, Volume 49 (2009), Issue 2, pages 41-60.
Doi: https://doi.org/10.29203/ka.2009.433
Full text: PDF
Key words: taxonomy, Boletales, Boletus, IGS, ITS

Abstract: A detailed study of morphological characters of the species in the Boletus sect.Boletus occurring in Finland was carried out. Consequently six species were separated: B. pinophilus, B. reticulatus, and four species in the B. edulis group: B. edulis, B. betulicola, B. aff. reticulatus and B. pinetorum M. Korhonen spec. nov. In addition, the identity of B. edulis var. arcticus is discussed. The species presented in this study have good distinguishing macro- and especially microscopical characters as well as differences in their ecological requirements. The most useful microscopical characters used for distinguishing the species are: shape of the spores, caulocystidia, and characters of pileipellis hyphae. A phylogenetic study of the species was also undertaken using the molecular markers ITS1 and ITS2. In addition, the IGS1 region of B. edulis coll. and B. pinophilus was studied. A total of 46 sequences were generated. The IGS1 region was shorter than ITS1-5.8S-ITS2 region and interestingly contained less intraspecifi c variation than ITS1 and ITS2. In our analysis Boletus pinophilus, B. reticulatus, and B. edulis s. lato formed well supported lineages but as in previous studies, relationships inside the B. edulis group remained unresolved. Based on their distinct macro- and microscopical characters, however, we consider the taxa within B. edulis groups as separate species.