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Oliveonia pauxilla (from Kotiranta 19024 & Saarenoksa ). — A : Section through basidiocarp showing basidioles, basidia, cystidia and spores. — B : Basidia and cystidia. — C : Spores.
Source publication
Three species of Ceratobasidium, C. bicorne Eriksson & Ryvarden, C. cornigerum (Bourdot) D.P. Rogers and C. pseudocornigerum M.P. Christensen, and two species of Oliveonia, O. fibrillosa (Burt) Donk and O. pauxilla (H.S. Jacks.) Donk, are reported from Finland. Ceratobasidium cornigerum and O. fibrillosa are reported for the first time. The most wi...
Context in source publication
Context 1
... ¥ 3.8-4.9 µm. Oliveonia fibrillosa is seldom col- lected in Europe, but found at least in Germany (Grosse-Brauckmann 2002) and Great Britain (UK Species Checklist 2003). The very thin fruit bodies are easily overlooked, and we think that the species is not as rare as the present number of collections imply. Oliveonia pauxilla (H.S. Jacks.) Donk (Fig. 4) Reported earlier from Finland by Hjortstam and Larsson (1997) from Etelä-Häme, Lammi, where it grew on a dead ...
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Annales Botanici Fennici 42(5): 335-342., 0003-3847
Citations
... 1889 (Donk 1958). Although regarded as related to Ceratobasidium, Oliveonia has been shown to be distinct including five species (Kotiranta and Saarenoksa 2005). Oliveorhiza anapauxilla, the type and only species of Oliveorhiza, was described for the asexual morph of Oliveonia pauxilla (Roberts 1998). ...
... Oliveorhiza anapauxilla, the type and only species of Oliveorhiza, was described for the asexual morph of Oliveonia pauxilla (Roberts 1998). Oliveonia fibrillosa and O. pauxilla are congeneric (Kotiranta and Saarenoksa 2005;Roberts 1998), thus Oliveonia and Oliveorhiza are synonyms. Oliveonia has been more widely used than Oliveorhiza (GSS Oliveonia = 107, Oliveorhiza = 6). ...
With the change to one scientific name for fungal taxa, generic names typified by species with sexual or asexual morph types are being evaluated to determine which names represent the same genus and thus compete for use. In this paper generic names of the Agaricomycotina ( Basidiomycota ) were evaluated to determine synonymy based on their type. Forty-seven sets of sexually and asexually typified names were determined to be congeneric and recommendations are made for which generic name to use. In most cases the principle of priority is followed. However, 16 generic names are recommended for use that do not have priority and thus need to be protected: Aleurocystis over Matula; Armillaria over Acurtis and Rhizomorpha; Asterophora over Ugola; Botryobasidium over Acladium , Allescheriella, Alysidium, Haplotrichum , Physospora, and Sporocephalium; Coprinellus over Ozonium; Coprinopsis over Rhacophyllus; Dendrocollybia over Sclerostilbum and Tilachlidiopsis; Diacanthodes over Bornetina; Echinoporia over Echinodia; Neolentinus over Digitellus; Postia over Ptychogaster; Riopa over Sporotrichum; Scytinostroma over Artocreas, Michenera , and Stereofomes; Tulasnella over Hormomyces; Typhula over Sclerotium; and Wolfiporia over Gemmularia and Pachyma. Nine species names are proposed for protection: Botryobasidium aureum, B. conspersum , B. croceum , B. simile, Pellicularia lembosporum (syn. B. lembosporum ), Phanerochaete chrysosporium , Polyporus metamorphosus (syn. Riopa metamorphosa ), Polyporus mylittae (syn. Laccocephalum mylittae ), and Polyporus ptychogaster (syn . Postia ptychogaster ). Two families are proposed for protection: Psathyrellaceae and Typhulaceae . Three new species names and 30 new combinations are established, and one lectotype is designated.
... (Q avg = 2.74). (Olive 1957, Talbot 1965, Kotiranta & Saarenoksa 2005a, Bernicchia & Gorjón 2010. Other micromorphological traits such as size and type of (gloeo-)cystidia are inconsistent among authors. ...
During a survey of 121 plots in the Czech part of the Bohemian Forest (Šumava Mts.) 1168 records of 174 taxa of corticioid fungi were obtained in the years 2017 and 2018. Occurrences of red-listed, rare or otherwise interesting taxa are reviewed. Athelopsis subinconspicua, Cabalodontia subcretacea, Hyphoderma aff. crassescens nom. prov., Kneiffiella cineracea, Lawrynomyces capitatus, Oliveonia sp., Phlebia aff.ryvardenii, Phlebia serialis, Phlebia subulata, Subulicystidium perlongisporum and Xylodon pruinosus are described, illustrated and their taxonomy and ecology is dis-cussed in detail. Data on elevation, host tree species and decay stage of the substrate for all species recorded is summarised in electronic supplement.
... Ceratobasidium lantana-camarae Barreto was the second species described in Brazil, morphologically different from C. niltonsouzanum with smaller and apiculate basidiospores (Barreto et al. 1995). Basidiospores of C. niltonsouzanum and C. pseudocornigerum Christiansen are similar in form but the basidiospores of C. cornigerum are shorter and usually widest at the basal end (Kotiranta and Saarenoksa 2005;Oberwinkler et al. 2013). ...
White thread blight is one of the most common diseases affecting several tree species that grow in warm and humid regions. The typical symptoms of this disease include blighted leaves hanging by a white thread of fungal hyphae. Leaf samples exhibiting white thread blight symptoms were collected from neem (Azadirachta indica A. Juss) and Brazilian cherry pitanga (Eugenia uniflora L.) plants in Northeastern Brazil, and from Indian green-tea (Camellia sinensis (L.) O. Kuntze), coffee (Coffea arabica L.), and persimmon (Diospyros kaki L.) in agricultural areas neighboring the Atlantic forest in Southeastern Brazil. Fungal isolates were obtained indirectly from leaf fragments or directly by transferring mycelia and sclerotia to culture medium. Bright field and scanning electron microscopy images revealed the association of Rhizoctonia-like hyphae and basidiospores with the infected leaves. In pathogenicity tests, Rhizoctonia-like fungal isolates induced leaf necrosis on their hosts, and the pathogens were re-isolated from inoculated plants. Phylogenetic analyses based on sequences of the ITS rRNA region indicated the occurrence of Ceratobasidium lineages distinct from previously reported Ceratobasidium species. Our study leads to the description of two new species of Ceratobasidium: the fungal isolates from A. indica, C. sinensis, and E. uniflora were classified as Ceratobasidium niltonsouzanum sp. nov., and those obtained from C. arabica and D. kaki as Ceratobasidium chavesanum sp. nov.
... Only few taxonomic treatments provided detailed and correct micromorphological analyses, documented by adequate illustrations (Oberwinkler 1972(Oberwinkler , 1982Eriksson and Ryvarden 1973;Langer 1994;Kotiranta and Saarenoska 2005), an essential prerequisite for meaningful interpretations based on cellular constructions. In many publications, illustrations are lacking or do not show structural details as they really exist. ...
A taxonomic re-evaluation of the Ceratobasidium-Rhizoctonia group suggests that Ceratobasidium contains only the type species C. calosporum, which deviates in micromorphological and ultrastructural characters from all other species so far included in that genus. Rhizoctonia species are compared with the type species of Ceratobasidium, Cejpomyces, Oncobasidium, Tofispora, Waitea, and Ypsilonidium. The micromorphology, ultrastructure, cellular interaction with the host, and molecular phylogeny of a Rhizoctonia species parasitic on needles and young shoots of Picea abies have been studied. The parasite has been known for a long time, but misinterpreted, and not named so far. Rhizoctonia butinii is described and compared with related species of the genus.
... Ceratobasidium cornigerum (named Ceratorhiza goodyerae-repentis in its non-perfect, anamorph state), a saprophytic fungus, is the natural symbiont of G. repens; the fungus has been almost exclusively isolated from this orchid under natural conditions (Hadley 1982; Cameron et al. 2006). C. cornigerum is widespread in the northern hemisphere, occurring in a wide variety of habitats (from shrubs to large herbs and dead wood) (Kotiranta & Saarenoksa 2005). Despite the fact that the spatial distribution of orchid fungi within soils is largely unknown, it is believed that it is similar to the distribution patterns of other types of mycorrhizal fungi (Batty et al. 2002). ...
Goodyera repens, a species of central and northern Europe, forms large populations in the Scotch pine forests in some areas of Mt Rhodopi (NE Greece), while simultaneously is absolutely absent in other areas with the same habitat type. The present study aims to investigate the ecological factors that constitute a barrier in the distribution of G. repens in its southernmost distribution limit. Data from 65 localities were sampled and chemical soil parameters were measured. Using the WorldClim database, the summer maximum temperatures and precipitation values were extracted. Binary logistic regression was used to determine the variables that best explain the distribution of G. repens. The data have been found to fit the model significantly, and the independent variables significantly explaining the probability of G. repens being present were phosphorus, copper, and zinc. The results indicate that the distribution of G. repens is indirectly affected by soil variables through the establishment of mycorrhizal symbiosis. Furthermore, its distribution is found to be negatively correlated with the nutrient content of the soil. The high habitat specificity of the species and its sensitivity to soil nutrient status makes it a convenient indicator for monitoring the consequences of vegetation succession on forest biodiversity.
... Th ey are oft en ellipsoid or ovoid with a length-to-width ratio of less than 1.5. However, our data agree well with the recent information from Finnish specimens of C. cornigerum (Kotiranta & Saarenoksa, 2005). Th e species develops on rotten deciduous wood, especially on that of Salicaceae representatives (Populus, Salix). ...
Fift een species of corticioid fungi with heterobasidia are recorded from the forests in the middle of the Seversky Donets River basin (eastern Ukraine) from 2007 to 2011. Of them, 11 species are new to Ukraine. Th ey are Basidiodendron rimulentum (Bourdot et Galzin) Luck-Allen, Ceratobasidium cornigerum (Bourdot) D.P.Rogers, Eichleriella deglubens (Berk. et Broome) Lloyd, Exidiopsis griseobrunnea K.Wells et Raitv. subsp. griseobrunnea, Helicogloea lagerheimii Pat., Stypella grilletii (Boud.) P.Roberts, Tulasnella albida Bourdot et Galzin, T. eichleriana Bres., T. pallida Bres., T. saveloides P.Roberts, and T. thelephorea (Juel) Juel. Two of these species, Exidiopsis griseobrunnea and Tulasnella saveloides, are still known to be from very few European regions, even aft er being discovered in Ukraine. Furthermore, 3 species (Basidiodendron eyrei (Wakef.) Luck-Allen, Exidiopsis galzinii (Bres.) Killerm., and Tulasnella violea (Quél.) Bourdot et Galzin) are new to the steppe zone and the plain part of Ukraine. Th anatephorus fusisporus (J.Schröt.) Hauerslev et P.Roberts is reported from Ukraine for the second time. Information on the ecology and distribution of the species is presented. Comments are made on the morphology of the specimens examined and original illustrations are provided for all of the species.
... Besides, spores are in general smaller, than described for C. pseudocornigerum, and rarely reaching 10-12.5 × 3.5-3 R $ ¢ R $ ¡ $ ¢ £¤ (Kotiranta & Saarenoksa, 1990;2005). Sterigmata development on basidiospores is more rarely observed in C. pseudocornigerum than in C. cornigerum (Kotiranta & Saarenoksa, 2005), and in this specimen only a single spore with a sterigma close to the apiculus was observed. This specimen was published earlier, with a brief description, by Yurchenko (2003) under the name Ceratobasidium aff. ...
. Thirteen species collected in 1997–2005 in Belarusian Lake province and Upper Byarezina Lowland are reported. Eight species are new for the country. Descriptions and illustrations are given for each species. This article continues the series of descriptions of rare resupinate non-poroid ho-mobasidiomycetes (Corticiaceae s. l.). The research area occupies the total north of Belarus and is bordered from the south by the physiographic districts, described in the preceding article (Yurchenko & Kotiranta, 2006). The collection sites were in Narach Lakes region and in central part of Byarezinski Biosphere Reserve. The first area belongs to Narach Plain and Sventsyany Moraine Ridges physiographic dis-trict of Belarusian Lakeland physiographic province, the second to Upper Byarezina Lowland physiographic district of Western Belarus physiographic province accord-ing to Klitsunova et al. (2002). All specimens were collected by E.O. Yurchenko in 1997–2005. Each of the species discussed below, is known just from a single local-ity in Belarus. To describe the micromorphology, preparations for microscopy were done in 3% KOH solution and, where necessary, in distilled water. The reaction with iodine (amyloidity or dextrinoidity) was checked in a small drop of distilled water mixed with a small drop of medicinal iodine solution and in Melzer's reagent. The material studied is preserved in fungal section (MSK-F) of the Herbarium of V.F. Kuprevich Institute of Experimental Botany. Duplicates were transferred to other collections too, including the reference herbarium of Heikki Kotiranta (H.K.) and others, which are mentioned in the text.
Six non-poroid resupinate homobasidiomycete species, collected within the borders of Paleskaya Physiographic Province, or Polesia (Belarus), are described and illustrated: Crustodontia chrysocreas, Hyphoderma cryptocallimon, H. transiens, Oliveonia citrispora, Trechispora caucasica,
T. minuta. According to the known distributional data, these taxa are rare or exceptionally rare in Belarus and other European countries; they are, except H. transiens, reported from Belarus for the first time. Distinctive characters and morphological differences from similar-looking
species are discussed.
