Authors: Harmaja, Harri
Journal: Karstenia, Volume 19 (1979), Issue 2, pages 33-45.
Doi: https://doi.org/10.29203/ka.1979.184
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Abstract:  The paper treats the taxonomy and distribution of two very closely related species in sect. Acetabulum Diss., Helvella costifera Nannf. s. str. and H. hyperborea Harmaja (Pezizales). H. hyperborea has generally darker pigmentation and less prominent ribs on the cup exterior and it occurs in late summer and autumn, usually in completely natural habitats, in boreal and alpine areas of Finland, Sweden, Norway and Iceland. H. costifera mainly fruits in summer, and occurs in man-influenced sites, preferring lower latitudes and altitudes.
Descriptions are given of the most important characters distinguishing four species in sect. Leucomelaenae Diss., H. leucomelaena (Pers.) Nannf., H. confusa Harmaja, H. pedunculata Harmaja and H. oblongispora Harmaja. H. pedunculata is reported from Finland and Norway, and H. oblongispora from Sweden, Norway, the Federal Republic of Germany, and Austria.
The new species Helvella ulvinenii Harmaja (sect. Acetabulum) is described from Finnish Lapland. The first record of H. dryadophila Harmaja from Finland and two new localities for Norway are reported. Acetabula murina Zeller, described from Oregon, is found to be a younger synonym of H. solitario Karst. (H. queletii Bres.). The specific status of H. verruculosa (Sacc.) Harmaja (Peziza verruculosa Berk. & Curt.), known only from the Bering Straits (U.S.S.R.), is substantiated.

Authors: Minter, D. W.
Journal: Karstenia, Volume 19 (1979), Issue 1, pages 30-31.
Doi: https://doi.org/10.29203/ka.1979.183
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Abstract:  A new coelomycete, Pseudodiplodia cenangiicola Nevodovsky ex Minter, on ascocarps of Cenangium ferruginosum Fr. ex Fr. (a fungus inhabiting pine twigs) is described from Krasnoyarsk, Siberia.

Authors: Harmaja, Harri
Journal: Karstenia, Volume 19 (1979), Issue 1, pages 25-29.
Doi: https://doi.org/10.29203/ka.1979.182
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Abstract:  An attempt is made to clarify the nomenclature of Cystoderma jasonis (Cooke & Massee) Harmaja (C. amianthinum (Fr.) Konr. & Maubl. var. longisporum Kühn.) and the species is compared with the closely related C. amianthinum. It has cyanophilic spore and basidium walls and binucleate spores, and is common in Finland. C. amianthinum was found to have dextrinoid and cyanophilic sclerobasidia. Cystoderma lilacipes Harmaja (C. ‘longisporum (Kühn .) Heinem. & Thoen’ var. purpurascens Heinem. & Thoen, nom. inval.) is compared with the closely related C. jasonis. Hitherto the species has been known from one Belgian locality only; now 12 localities are reported from Finland. Cystoderma tuomikoskii Harmaja and Cystoderma intermedium Harmaja, two new species closely related to C. fallax Smith & Sing., are described on the basis of Finnish material. Cystoderma terreii (Berk. & Broome) Harmaja is regarded as the legitimate name for C. cinnabarinum (Seer.) Konr. & Maubl. The author agrees that the genus Cystoderma Fayod should be placed in the family Tricholomataceae. Some author citations are corrected.

Authors: Harmaja, Harri
Journal: Karstenia, Volume 19 (1979), Issue 1, pages 22-24.
Doi: https://doi.org/10.29203/ka.1979.181
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Abstract:  The author discusses the type materials of Clitocybe Arnoldi Boud., C. brevipes Bigelow, C. griseifolia Murr., C. harperi Murr., C. incomis (Karst.) Orton (Collybia incomis Karst.), and C. piperata A. H. Smith. Three first-named are found to be synonymous with other species, C. harperi is a species of Rhodocybe, C. incomis is excluded from Clitocybe, and the new combination Lyophyllum piperatum (A.H. Smith) Harmaja is made. An undescribed species that is closely related to R. harperi is reported, and some connections are noted between the tribe Lyophylleae of the family Tricholomataceae and the genus Rhodocybe.

Authors: Hæggström, Carl-Adam
Journal: Karstenia, Volume 19 (1979), Issue 1, pages 19-21.
Doi: https://doi.org/10.29203/ka.1979.180
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Abstract:  Geastrum nanum Pers. was found in 1972 in Björkör Nature Reserve in Åland, SW Finland. This is the first find of G. nanum from Finland, since an earlier record of the species was based on a misidentification. A description is given of the four gastrocarps from Björkör. The locality, a dry, stony meadow grazed by sheep, has a rather poor and common vascular plant flora. The total distribution of G. nanum is described.

Authors: Härkönen, Marja
Journal: Karstenia, Volume 19 (1979), Issue 1, pages 8-18.
Doi: https://doi.org/10.29203/ka.1979.179
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Abstract:  Finnish research on Myxomycetes is briefly reviewed, and an annotated check-list is given of all the names by which the Myxomycetes are listed in the Finnish literature, with references to the biological provices where the species have been found. Special attention is paid to the identity of the species described by P. A. Karsten and W. Nylander from Finland. Diderma simplex (Schroeter) G. Lister is reported as new to Finland.
At present the Finnish herbaria contain material of 132 species of Myxomycetes from Finland. Fourteen further species are mentioned in the literature, but no proper specimens could be traced.

Authors: Härkönen, Marja
Journal: Karstenia, Volume 19 (1979), Issue 1, pages 1-7.
Doi: https://doi.org/10.29203/ka.1979.178
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Abstract: Finnish records are given for 22 species of Myxomycetes. The following 17 are new to Finland: Badhamia lilacina (Fr.) Rost., Comatricha alta Preuss, Cribraria rufa (Roth) Rost., Diderma effusum (Schw.) Morgan, D. montanum (Meyl.) Meyl., D. niveum (Rost.) Macbr., Didymium anellus Morgan, Enteridium splendens (Morgan) Macbr. var. juranum (Meyl.) Härkönen, Fuligo cinerea (Schw.) Morgan, Lamproderma maculatum Kow., L. sauteri Rost., L. scintillans (Berk. & Br.) Morgan, Physarum lateritium (Berk. & Rav.) Morgan, Stemonitis herbatica Peck, S. virginiensis Rex, Stemonitopsis dictyospora (Celak.) Nann.-Brem., Symphytocarpus amaurochaetoides Nann.-Brem. The following five have not been reported earlier from Fennoscandia: Comatricha alta, Lamproderma maculatum, Physarum lateritium, Stemonitis virginiensis, Stemonitopsis dictyospora.
Didymium abducens Karst. is shown to be an earlier name for D. fulvum Sturgis. Enteridium splendens (Morgan) Macbr. var. juranum (Meyl.) Härkönen n. comb. is introduced as a valid name for Reticularia jurana Meyl. The report of the occurrence of Comatricha irregularis Rex in Finland is shown to have been based on a wrong determination.