Category Archives: Volume 49(2) 2009

A new boletoid fungus, Boletus pinetorum, in the Boletus section Boletus from Fennoscandia (Basidiomycota, Boletales)

Authors: Korhonen, Mauri & Liimatainen, Kare & Niskanen, Tuula
Journal: Karstenia, Volume 49 (2009), Issue 2, pages 41-60.
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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.

New and rare myxomycetes of Ukraine. 1. East Forest-Steppe

Authors: Leontyev, Dmitry & Eliasson, Uno & Kochergina, Anastasia & Morozova, Irina
Journal: Karstenia, Volume 49 (2009), Issue 2, pages 61-67.
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Key words: Myxomycota, biodiversity, Ukraine, East Forest-Steppe

Abstract: During the 2006–2008 summer–autumn seasons, the myxomycete biodiversity was investigated in Gomolsha Forests National Nature Park and neighbouring territories of the East Forest-Steppe area of Ukraine. Several earlier collections (2002-2004) were also reexamined. Four species found appeared to be new for Ukraine, six others were estimated as rare for the country. Descriptions, microphotographs, localities and information on substrata are presented for these species.

Phlebia cremeoalutacea new to Finland and new records of rare corticioid fungi (Basidiomycota)

Authors: Kunttu, Panu & Kosonen, Timo & Kulju, Matti & Kotiranta, Heikki
Journal: Karstenia, Volume 49 (2009), Issue 2, pages 69-71.
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Key words: Archipelago Sea, Colacogloca peniophorae, corticioid fungi, Phlebia cremeoalutacea, Trechispora invisitata ssp. hauerslevi, Trechispora laevis

Abstract: Phlebia cremeoalutacea is reported as a corticioid fungus new to Finland. New records of Colacogloea peniophorae, Trechispora invisitata ssp. hauerslevi and Trechispora laevis are given. All these records were made in SW Finland, from the forested islands of the Archipelago Sea. Inventories were carried out between July and November 2008. As Phlebia cremeoalutacea is known to inhabit especially the hemiboreal zone and it has been found from all the other countries adjacent to Finland, its discovery can be considered as expected. The three other species are little collected, with less than five earlier records.