Authors: Renvall, Pertti & Junninen, Kaisa
Journal: Karstenia, Volume 39 (1999), Issue 1, pages 33-35.
Doi: https://doi.org/10.29203/ka.1999.334
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Key words: Betula, old-growth forest, Rigidoporus crocatus, threatened fungi

Abstract:  Oligoporus folliculocystidiatus Kotl. & Vampola, . lowei (Pilát) Gilb. & Ryvarden, Piloporia sajanensis (Parmasto) Niemelä, Rigidoporus crocatus (Pat.) Ryvarden and some other rare polypores (Basidiomycetes) are reported from the old-growth forests of eastem Finland. The collection of R. crocatus is the first in this century from the country. The species was considered to be extinct until the present find from Ilomantsi.

Authors: Kytövuori, Ilkka
Journal: Karstenia, Volume 39 (1999), Issue 1, pages 11-31.
Doi: https://doi.org/10.29203/ka.1999.333
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Key words: Stropharia, Psilocybe, coprophilous, Fennoscandia, mapping, taxonomy

Abstract:  Six species are recognized in the Stropharia semiglobata group in NW Europe: S. alcis Kytöv., spec. nova, S. arctica Kytöv., spec. nova, S. dorsipora Esteve-Rav. & Barrasa, S. islandica Kytöv., spec. nova, S. luteonitens (Vahl : Fr.) Quél. and S. semiglobata (Batsch : Fr.) Quél. S. semiglobata is common throughout the study area and S. alcis in Fennoscandia, S. dorsipora and S. luteonitens are rare or very rare and possibly decreasing in Fennoscandia, S. islandica is known from Iceland, and S. arctica from Iceland and arctic Russia. The distribution of each species in the study area is mapped, and their taxonomy, ecology and relationships are discussed.

Authors: Eliasson, Uno H. & Keller, Harold W.
Journal: Karstenia, Volume 39 (1999), Issue 1, pages 1-10.
Doi: https://doi.org/10.29203/ka.1999.332
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Key words: coprophilous myxomycetes, capillitial ornamentation, Arcyria elaterensis, Arcyria stipata, Trichia brunnea

Abstract:  An updated summary is provided for myxomycete species occurring on dung of herbivorous animals. At least 99 species representing 23 genera have been reported. Most species normally occur on other substrata and are only occasionally found on dung. A restricted number of species are truly coprophilous in that most or all records are from this substratum. These species are Arcyria elarerensis, Badhamia apiculospora, B. rhytidosperma, B. spinispora, Didymium annulisporum, D. nullifilum, D. rugulosporum, Kelleromyxa fimicola, Licea alexopouli, Licea pescadorensis, Macbrideola coprophila, Perichaena corricalis var. liceoides, P. luteola, Trichia brunnea, and T. fimicola. A key is provided for species which are truly coprophilous or often found on dung. All species ever reported on dung are listed. Hemirrichia stipata var. fusca Z. Moravec is conspecific with Trichia brunnea J.J.Cox. Taxonomic comments are given on Arcyria elaterensis and A. stipata, and the taxonomic importance of dextrorse versus sinistrorse spiral ornamentation on the capillitial threads is discussed.

Authors: Kotiranta, Heikki & Mukhin, Viktor
Journal: Karstenia, Volume 38 (1998), Issue 2, pages 69-80.
Doi: https://doi.org/10.29203/ka.1998.331
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Key words: Aphyllophorales, Basidiomycetes, Abies nephrolepsis, Kamchatka, dispersal ability, Steccherinum mukhinii

Abstract:  The Aphylloporales of an isolated Abies nephrolepis forest in Kamchatka were studied in the autumn of 1997. In this study 37 species were found. Their microscopical features are briefly discussed and some measurements are given. The number of species is relatively low. Several species usually common on Abies were absent, and our conclusionis that the forest is not native but of anthropogenic origin. The low number of species is explained by the relatively short history of the forest and the poor longdistance dispersal ability of the wood-inhabiting species. The new species Steccherinum mukhinii Kotiranta & Y.C. Dai is described.

Authors: Karhula, Päivi & Härkönen, Marja & Saarimäki, Tiina
Journal: Karstenia, Volume 38 (1998), Issue 2, pages 49-68.
Doi: https://doi.org/10.29203/ka.1998.330
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Key words: Africa, Agaricales, Lactarius, Tanzania, taxonomy

Seventy-two specimens of Lactarius were collected in Tanzania between 1990-1995. The material contained 27 species of which 15 had not been described. Two of these, Lactarius denigricans Verbeken & Karhula and L. densifolius Verbeken & Karhula have been described since then and three more species, L. xerampelinus Karhula & Verbeken, L. tanzanicus Karhula & Verbeken and L. volemoides Karhula are described here. In addition, all the identified species of Lactarius in Tanzania are listed and annotated. Many Lactarius species are considered edible in Tanzania although there are a range of opinions among the different tribes some of which are contradictory.

Authors: Harmaja, Harri
Journal: Karstenia, Volume 38 (1998), Issue 2, pages 45-48.
Doi: https://doi.org/10.29203/ka.1998.329
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Key words: Boletellus, Finland, taxonomy, Xerocomus

Abstract:  Boletellus ripariellus (Redeuilh) Redeuilh is reported to be the correct name for the small red bolete which has been called Xerocomus rubellus (Krombh.) Quél. in Finland. It is uncertain whether the true X. rubellus occurs in the country.

Authors: Jeppson, Mikael
Journal: Karstenia, Volume 38 (1998), Issue 2, pages 37-43.
Doi: https://doi.org/10.29203/ka.1998.328
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Key words: Scleroderma septentrionale, Gasteromycetes, North Europe, taxonomy

Abstract:  A new species of the Sclerodermatales (Basidiomycota), Scleroderma septentrionale Jeppson, is described from sand dunes and sandy heaths in northern Europe. A table showing diagnostic characters in European species of Scleroderma sect. Scleroderma is presented.

Authors: Ukkola, Tarja
Journal: Karstenia, Volume 38 (1998), Issue 1, pages 27-36.
Doi: https://doi.org/10.29203/ka.1998.327
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Key words: Africa, Dar es Salaam, moist chamber culture, Myxomycetes, Tanzania

Abstract:  Nineteen species of myxomycetes are reported from Dares Salaam, Oyster Bay. The following taxa are new to Tanzania: Licea kleistobolus G. W. Martin, Physarum echinosporum Lister, P. oblatum T. Macbr., and P. spumarioides T. N. Lakh. & Mukerji var. degawae Nann.-Bremek. & Y. Yamam., the latter taxon being reported from Africa for the first time. A species of Licea is described with illustrations, but not named, as the material existing is fairly scanty. A total of 27 specimens of seven genera are presented, all developed in moist chamber cultures on bark from living trees or on plant remains.

Authors: Jakobson, Aivo & Kullman, Bellis & Huhtinen, Seppo
Journal: Karstenia, Volume 38 (1998), Issue 1, pages 1-25.
Doi: https://doi.org/10.29203/ka.1998.326
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Key words: Ascomycetes, Pezizales, Octospora, Lamprospora, taxonomy, morphology, fungal anatomy, new records, vital taxonomy

Abstract:  15 species of the genus Octospora have been found in Estonia and Finland. In Estonia 8 species have been found, of which 4 are new to Estonia: Octospora axillaris (Nees: Pers.) M.M. Moser, O. crosslandii (Dennis & Itzerott) Benkert, O. rustica (Velen.) J. Moravec, O. wrightii (Berk. & M.A. Curtis) J. Moravec, and 4 species recorded earlier, viz. O. carbonicola (Boud.) Yei-Zeng Wang, O. humosa (Fr.: Fr.) Dennis, O. leucoloma Hedw.: Gray and O. tetraspora (Fuckel) Korf. In Finland 11 species have been discovered. In addition to the earlier recorded O. seaveri (Benkert) Yei-Zeng Wang and O.maireana (Seaver) Yei-Zeng Wang, the following species have been found: O. alpestris (Sommerf.) Dennis & Itzerott, O. borealis (Eckblad) Caillet & Moyne, O. humosa (Fr. :Fr.) Dennis, O. leucoloma Hedw. : Gray, O. melina (Velen.) Dennis & Itzerott, O. miniata (De Not.) Caillet & Moyne, O. rubens (Boud.) M.M. Moser, O. rustica (Velen.) J. Moravec and O. wrightii (Berk. & M. A. Curtis) J. Moravec.

Authors: Nikulin, Marjo & Reijula, Kari & Stjernvall, Tuula & Hintikka, Eeva-Liisa
Journal: Karstenia, Volume 37 (1997), Issue 2, pages 57-64.
Doi: https://doi.org/10.29203/ka.1997.325
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Key words: electron microscopy, mycotoxins, Stachybotrys chartarum

Abstract: The fine structure of two Stachybotrys chartarum strains, one toxic (S. 72) and one non-toxic (S . 29) was investigated by transmission electron microscopy (TEM). It is not known if certain morphological details of the fungus are correlated with its toxin producingcapacity. The hyphae and conidia in both strains possessed three wall layers:an electron lucent inner layer, more dense middle layer, and an electron dense outer layer. The outer layer in both strains was uneven and formed an echinulate surface on the conidium. Only minor morphological differences were observed between the toxic and non-toxic strains. The echinulate surface of the conidium of the non-toxic strain was thinner than that in the toxic strain and the outer surface of the hyphae of the non-toxic strain was smoother than the hyphal surface of the toxic strain.