Authors: Ukkola, Tarja & Härkönen, Marja
Journal: Karstenia, Volume 41 (2001), Issue 1, pages 25-29.
Doi: https://doi.org/10.29203/ka.2001.375
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Abstract: An unidentified species of Diderma, new to Tanzania, is discussed and illustrated. A scanty specimen developed in a moist chamber culture prepared from bark of living Juniperus procera. This moist chamber was cultured for the first time in June 1989 and produced then no Diderma species after one month of incubation. The dried petri dish was stored for ten years in a closed, dark laboratory cupboard and was rewetted in May 1999. After 60 days of incubation an interesting Didermaspecies developed with walnut-shaped spores bearing an equatorial ring or two perpendicular rings. This specimen may represent a new species, but also seems to have affinity to Diderma punense. We have not been able to obtain the type specimen of the latter species from India to compare it to our specimen. For comparison, some specimens of Diderma cor-rubrum with similar spore morphology were studied with SEM.

Authors: Huhtinen, Seppo & Alanko, Pentti & Mäkinen, Yrjö
Journal: Karstenia, Volume 41 (2001), Issue 1, pages 31-36.
Doi: https://doi.org/10.29203/ka.2001.376
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Key words: Microesphaera, Caragana, Finland, invasion history

Abstract: The invasion of Microsphaera palczewskii Jacz. – an Asian-origin parasitic fungus ofCaragana Fabr. – in Finland is reported. The first specimen was collected in South Finland in 1981 and now the species is distributed throughout the country to all areas where Caragana arborescens Lam. is cultivated. The epidemic spread caused a total decline of the occurrence of M. trifolii (Grev.) U. Braun on Caragana. The last record of M. trifolii dates back to year 1987. Mature cleistothecia of M. palczewskiican be found from mid-July onwards, conidial stage from the beginning of June. Specimens showing conidial stage only can be observed even in September and October, which indicates a continuous infection activity. Recent field observations do not support the reported overwintering in wooden parts. The source of infection is most probably fallen leaves with plenty of cleistothecia.

Authors: Yamamoto, Yukinori
Journal: Karstenia, Volume 40 (2000), Issue 1-2, pages 197-198.
Doi: https://doi.org/10.29203/ka.2000.372
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Key words: Japan, myxomycetes, Stemonitis, taxonomy

Abstract:  A new species, Stemonitis marjana Y. Yamam. (Stemonitaceae, Myxomycetes) from Japan is described and illustrated.

Authors: Wu, Sheng-Hua & Chen, Zuei-Ching
Journal: Karstenia, Volume 40 (2000), Issue 1-2, pages 195-196.
Doi: https://doi.org/10.29203/ka.2000.371
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Key words: Helicogloea globispora, new species, Saccoblastia, Taiwan

Abstract:  Helicogloea globispora Sheng H. Wu & Z.C. Chen is described as a new species from North Taiwan. This new species with a hypochnoid-floccose basidiome and nodoseseptate hyphae, belongs to the subgenus Saccoblastia Lowy. Helicogloea globispora is allied to H. sphaerospora (A. Moller) Lowy, which has smaller basidiospores.

Authors: Ukkola, Tarja
Journal: Karstenia, Volume 40 (2000), Issue 1-2, pages 189-194.
Doi: https://doi.org/10.29203/ka.2000.370
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Key words: Africa, checklist, myxomycetes, Tanzania

Abstract:  A brief review of the Tanzanian myxomycete research is made. An annotated checklist is given of all the names by which Tanzanian myxomycetes are listed in the literature. The check-list includes all myxomycete taxa known to be reported from Tanzania, East-Africa. The known biota of myxomycetes in Tanzania now includes 124 species and four varieties.

Authors: Thorn, R. Greg
Journal: Karstenia, Volume 40 (2000), Issue 1-2, pages 181-187.
Doi: https://doi.org/10.29203/ka.2000.369
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Key words: biogeography, Polyporus, taxonomy, wood decay fungi

Abstract:  The taxonomy of six species described in or transferred into the genus Piptoporus was reassessed. Piptoporus choseniae is a Polyporus, and more closely resembles Polyporus pseudobetulinus in morphology and ecology than P. varius, to which it has previously been compared and synonymized. Piptoporus fraxineus is Polyporus admirabilis, a holarctic species recently reported from Europe. Piptoporus paradoxus is a later synonym of Piptoporus quercinus, and both were among the three original species of Piptoporus P. Karst. Piptoporus ulmi is allied to Polyporus craterellus and P. tuberaster, and is renamed Polyporus vassilievae Thorn, nom. nov. since the epithet ulmi is preoccupied in Polyporus. Piptoporus hirtus is Jahnoporus hirtus, and Piptoporus elatinus (Berk.) Teng, sensu Teng non Berkeley, is Rigidoporus lineatus. Significant range extensions and other ecological aspects of these species are discussed.

Authors: Stalpers, Joost A.
Journal: Karstenia, Volume 40 (2000), Issue 1-2, pages 167-180.
Doi: https://doi.org/10.29203/ka.2000.368
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Key words: Caeruleomyces, Ceriomyces, polypores, Ptychogaster, Sporotrichopsis, taxonomy

Abstract:  All species classified in the genera Ptychogaster Corda and Ceriomyces Corda have been studied. Ptychogaster is now restricted to anamorphs of Postia (Bull. : Fr.) Singer. Sporotrichopsis Stalpers is described for the anamorph of Abortiporus biennis Fr. and Caeruleomyces Stalpers to accomodate Sporotrichum azureum Arx. An annotated check-list of all species ever classified in Ptychogaster and Ceriomyces is given.

Authors: Schnittler, Martin & Novozhilov, Yuri & Stephenson, Steven L.
Journal: Karstenia, Volume 40 (2000), Issue 1-2, pages 159-166.
Doi: https://doi.org/10.29203/ka.2000.367
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Key words: myxomycetes, Barbeyella minutissima, morphology, scanning electron microscopy, sporocarp development

Abstract:  The minute myxomycete Barbeyella minutissima Meyl. was studied with scanning electron microscopy. Comparison of the morphological features of Barbeyella minutissima with those of Echinostelium arboreum H.W. Keller & T.E. Brooks provides evidence for a systematic position close to the genus Echinostelium. Observation of developing sporocarps under dissecting as well as compound microscopes indicated an epihypothallic pattern of development, which suggests a systematic position for B. minutissima that is intermediate between the Echinosteliales and the Stemonitales.

Authors: Ryvarden, Leif
Journal: Karstenia, Volume 40 (2000), Issue 1-2, pages 153-158.
Doi: https://doi.org/10.29203/ka.2000.366
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Key words: polypores, Tropical America, Wrightoporia

Abstract:  Wrightoporia neotropica Ryvarden is described as new and a key and descriptions are provided for all known species of Wrightoporia in tropical America.

Authors: Rikkinen, Jouko
Journal: Karstenia, Volume 40 (2000), Issue 1-2, pages 147-151.
Doi: https://doi.org/10.29203/ka.2000.365
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Key words: Ascomycota, Caliciopsis, Choerospondias, China, Hunan, Rhus, Toona

Abstract:  Two new species of Caliciopsis (Ascomycota, Coryneliales) are described from temperate broad-leaved forests in Hunan Province, China. Caliciopsis toonae Rikkinen was found in bark crevices on trunks of Toona sinensis and Choerospondias axillaris. Caliciopsis rhoina (Juss.) Roem. Rikkinen was found on branches and twigs of Rhus chinensis, being associated with cankers in the bark, and on trunks of Toona sinensis.