Category Archives: Volume 56(1-2) 2016

Eleven Myxomycete species new to Finland

Authors: Varis, Elina & Karhilahti, Ari & Prättälä, Aurora
Journal: Karstenia, Volume 56 (2016), Issue 1-2, pages 61-72.
Full text: PDF
Key words: Myxomycetes, Finland, distribution

Abstract: The following 11 Myxomycete species new to Finland are described: Clastoderma debaryanum, Comatricha longipila, Cribraria atrofusca, C. mirabilis, C. pertenuis, C. stellifera, Licea eleanorae, Physarum braunianum, P. flavicomum, P. mutabile and Stemonitis marjana. Cribraria pertenuis, C. stellifera, C. longipila and L. eleanorae were collected from moist chamber cultures. The rest of the specimens were collected from field. The known biota of Myxomycetes in Finland now includes altogether 225 species.

Cryptomyces maximus rediscovered in Finland after 99 years

Authors: Rämä, Teppo
Journal: Karstenia, Volume 56 (2016), Issue 1-2, pages 55-60.
Full text: PDF
Key words: Ascomycota, fungal parasitism, Rhytismataceae, Twig Girdling, Willow Blister

Abstract: Cryptomyces maximus is a conspicuous ascomycete, which is easy to identify due to its characteristic ecology and morphological appearance. The fungus was found in three locations in the northwesternmost part of the country, 99 years after the first find in Southern Finland in 1913. Four recent records made in Northern Norway are also published. The host range of the fungus is expanded with three willow species.

Three new ascomycetes on epiphyllous liverworts

Authors: Döbbeler, Peter
Journal: Karstenia, Volume 56 (2016), Issue 1-2, pages 47-54.
Full text: PDF
Key words: biotrophic parasites, hepaticolous, hyperepiphyllous, phyllosphere, Bryothele, Epibryon

Abstract:  The leaves of vascular plants in tropical rainforests are often covered by liverworts that form the substrate for many highly-adapted parasitic ascomycetes. Whilst looking for these fungi three new species were discovered. Bryothele biporosa has porous ascospores and develops on and between the leaves of Radula flaccida in tropical America. Bryothele was hitherto known only from B. mira on the same host species in tropical Africa. Epibryon platycarpum forms tiny semiglobose ascomata on the dorsal leaf surfaces of Radula sp. in Cameroon. Epibryon semitectum has ascomata partly protected by the leaf margins. It infects Cyclolejeunea peruviana in Costa Rica. Like most hyperepiphyllous ascomycetes, these new species are biotrophic parasites.

A new species of Maireina on Filipendula ulmaria

Authors: Læssøe, Thomas & Davey, Marje L. & Petersen, Jens H.
Journal: Karstenia, Volume 56 (2016), Issue 1-2, pages 39-46.
Full text: PDF
Key words: Niaceae, Agaricales, cyphelloids, taxonomy, phylogeny, Merismodes, Cyphelopsis

Abstract:  Based on material from Sweden and Denmark a new species of Maireina is described. It produces tiny, pale yellow brown, cyphelloid basidiomata at the very base of Filipendula ulmaria in grazed forest meadows. Phylogenetically it falls within the Niaceae clade with sisterrelations to Cyphellopsis/Merismodes. It differs from M. maxima by habitat and by smaller spores and from M. monacha by much smaller spores.

A new species of Typhula with sigmoid spores: Typhula suecica

Authors: Olariaga, Ibai & Corriol, Gilles & Salcedo, Isabel & Hansen, Karen
Journal: Karstenia, Volume 56 (2016), Issue 1-2, pages 27-38.
Full text: PDF
Key words: Typhuloid fungi, species delimitation, sclerotium

Abstract: The new species, Typhula suecica, is morphologically characterized by having partially sigmoid spores, projecting thick-walled stipe hairs, and by lacking clamp connections. The polygonal rind cells of the sclerotia are also diagnostic. Phylogenetic analyses of 58 new sequences of the LSU and tEF-1 a regions show that specimens of T. suecica form a supported monophyletic group, deeply nested in Typhula. Typhula suecica appears to be a widely distributed but rare species that occurs on leaves of angiosperm trees (Acer, Alnus, Populus) in various types of damp forests. Material from South France, the Spanish slope of the Pyrenees and Central Sweden is reported here.

Inocybe baltica and I. suecica, two new smoothspored species from the Baltic Sea region

Authors: Vauras, Jukka & Larsson, Ellen
Journal: Karstenia, Volume 56 (2016), Issue 1-2, pages 13-26.
Full text: PDF
Key words: Inocybe, Agaricales, taxonomy, molecular systematics, hemiboreal zone, Europe

Abstract: Two new species, with pruinose stipe and smooth spores, are described from Fennoscandia and Estonia. Inocybe baltica is a rather large species, associated with Pinus sylvestris on calcareous sandy soils, often occurring at seashores. I. suecica is a smaller species associated with deciduous trees on more rich and calcareous soils, often found in parks and cemeteries. Both species are so far known to occur only in the hemiboreal zone.

Russula suecica, a new red species from Northem Fennoscandia

Authors: Vauras, Jukka & Ruotsalainen, Juhani & Liimatainen, Kare
Journal: Karstenia, Volume 56 (2016), Issue 1-2, pages 5-12.
Full text: PDF
Key words: Agaricales, Basidiomycetina, Fennoscandia, Russula, Russulales, taxonomy

Abstract:  Russula suecica, a new species occurring e.g. with species of Betula, is described and illustrated. It is known from Finland, Sweden, Norway, Canada, U.S.A. and Russia, from southern boreal zone to low-alpine belt. This species has fairly large fruit bodies, with red pileus, often with cream to whitish splodges, white stipe, often with reddish glimmer, very acrid taste, smell like Russula emetica, and creamy-yellow spore print.