Category Archives: Volume 49(1) 2009

An emendation of the genus Hyaloscypha to include Fuscoscypha (Hyaloscyphaceae, Helotiales, Ascomycotina)

Authors: Baral, Hans-Otto & De Sloover, Jacques & Huhtinen, Seppo & Laukka, Tomi & Stenroos, Soili
Journal: Karstenia, Volume 49 (2009), Issue 1, pages 1-17.
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Key words: Hyaloscyphaceae, Hyaloscypha, Fuscoscypha, Betulina, Ureolella, bryophilous ascomycetes

Abstract: The monotypic genus Fuscoscypha possesses hairs similar as in the genusHyaloscypha but differs by grey-olivaceous-brown apothecia with short dark stipes. Molecular data proves that the pigmentation does not permit delimitation of a separate genus, as white and brown taxa do not form separate clades. Followingly, Fuscoscypha is here considered to be a synonym of Hyaloscypha. Three of the here treated four species have an olivaceous-brown excipulum. Two are saprophytes on decaying leaves and fruits of angiosperms: F. acicularum, the type species ofFuscoscypha, and Hyaloscypha fuscostipitata comb. nov. (formerly placed in Betulina). Two are biotrophic parasites on Bryophyta: Hyaloscypha hepaticola comb. nov. (formerly placed in Trichopeziza) and the hyaline-excipled Hyaloscypha albocarpa spec. nov. which is otherwise very similar to H. hepaticola. The type species of the genus Betulina, B. hirta, is found to be an earlier synonym of Urceolella salicicola (= U. graddonii) . The new combination Urceolella hirta is therefore proposed, hence Betulina is considered a synonym of Urceolella.

Two new Lactarius species, L. flavopalustris and L. flavoaspideus, in Fennoscandia

Authors: Kytövuori, Ilkka
Journal: Karstenia, Volume 49 (2009), Issue 1, pages 19-31.
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Key words: Lactarius, Lactarius aspideus, Lactarius flavidus, Fennoscandia, taxonomy

Abstract: Two new species with violet staining milk and related to Lactarius aspideus (Fr. : Fr.) Fr. are described from Fennoscandia: L. flavopalustris Kytöv., spec. nova andL. flavoaspideus Kytöv., spec. nova. The distribution of each species is mapped, and their taxonomy, ecology and relationships are discussed.

Species of myxomycetes new to Sweden with additional records of some rarely collected species

Authors: Eliasson, Uno H. & Adamonyte, Grazina
Journal: Karstenia, Volume 49 (2009), Issue 1, pages 33-39.
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Key words: Swedish myxomycetes, Macbrideola, Physarum crateriforme, Stemonitopsis

Abstract: Eleven species of myxomycetes are formally reported from Sweden for the ?rst time,namely Collaria lurida, Cribraria persoonii, Diderma cinereum, Fuligo leviderma,Lamproderma pseudomaculatum, Physarum crateriforme, Stemonitis pallida, Stemonitopsis amoena, S. gracilis, S. subcaespitosa and Symphytocarpus impexus. A possibly undescribed species of Macbrideola is discussed and illustrated. New records of several rarely collected species are cited, among them Hemitrichia abietina, H. leiotricha andPhysarum diderma. The great variation of Physarum crateriforme in moist chamber cultures is discussed.