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Search for "DICTYOSPORIUM": 3 articles found in Index.

DELGADO G., KOUKOL O., HEREDIA G., PIEPENBRING M. (2020): Texas microfungi: Hermatomyces amphisporus (Pleosporales, Dothideomycetes) revisited.   [anamorphic ascomycete, phylogenetic placement, saprobic, taxonomy, genotypic variability, Hermatomyces bauhiniae.]  Czech Mycology 72(1): 95-107   (published: 22nd June, 2020)
  abstract   The pleosporalean anamorph Hermatomyces amphisporus is recorded for the first time from the U.S.A. based on several specimens collected on Sabal minor (Arecaceae) during mycological surveys carried out in the state of Texas. Phylogenetic analyses of novel DNA sequence data belonging to four nuclear regions (ITS rDNA, EF1-α, RBP2, β-TUB) revealed its taxonomic position within the monotypic family Hermatomycetaceae (Pleosporales, Dothideomycetes) in congruence with its morphological features. A description of the fungus in culture is provided here for the first time. Interestingly, apart from the lenticular conidia, also cylindrical conidia were formed together with chlamydosporous structures and pycnidia producing hyaline, nonseptate conidia. Further notes on the morphology on natural substrate, ecology and distribution in the U.S.A. and worldwide of this rare fungus are provided. The recently introduced species H. bauhiniae, which presents morphological characteristics different from the typical Hermatomyces spp., is found to be based on a confusing description, thus a different genus should be found to accommodate it.

RAVIKUMAR M., SRIDHAR K.R., SIVAKUMAR T., KARAMCHAND K.S., SIVAKUMAR N., VELLAIYAN R. (2009): Diversity of filamentous fungi on coastal woody debris after tsunami on the southeast coast of India.   [tsunami, Bay of Bengal, southeast coast of India, woody litter, fungal diversity]  Czech Mycology 61(1): 107-115   (published: 29th September, 2009)
  abstract   Five coastal locations on the southeast coast of India severely disturbed after the tsunami on December 26, 2004 were surveyed for the occurrence of filamentous fungi on woody debris by means of short-term (1 month) and long-term (12 months) damp incubation. Short-term incubation revealed 26 mitosporic fungi (8 genera) ranging from 14 to 17 taxa per location with a total frequency of occurrence between 0.4 and 5.6 %. Aspergillus taxa were dominant and six of them were common to all locations.Long-term incubation yielded 35 fungi (25 genera) (22 ascomycetes, 1 basidiomycete and 12 mitosporic fungi). The total fungal taxa per location ranged from 25 to 28 with a total frequency of occurrence of 0.8 to 46.8 %. Corollospora gracilis was the most dominant ascomycete (46.8 %), while Cirrenalia tropicalis and Dictyosporium pelagicum dominated among mitosporic fungi (18 %). The total frequency of occurrence of 11 ascomycetes and four mitosporic fungi was above 10 %. Twelve ascomycetes and two mitosporic fungi were common to all locations. The richness of fungi was higher after long-term than short-term incubation. The occurrence of 61 fungal taxa in this study suggests that the tsunami-dumped woody litter on the southeast coast of India might have at least partially originated from the ocean, thus representing a mosaic of fungi existing in seawater and sediments.

JOHNOVÁ M. (2009): Diversity and ecology of selected lignicolous Ascomycetes in the Bohemian Switzerland National Park (Czech Republic).   [ascomycetes, lignicolous pyrenomycetes, biodiversity, ecology, endangered species]  Czech Mycology 61(1): 81-97   (published: 29th September, 2009)
  abstract   Lignicolous pyrenomycetes, their anamorphs and asexually reproducing Ascomycetes were investigated on deciduous and coniferous wood at 10 localities of the Bohemian Switzerland National Park (České Švýcarsko in Czech) during 2003–2005. A total number of 109 species was recorded, 11 species were found both as teleomorph and anamorph. Individual localities were evaluated from the viewpoint of Ascomycetes diversity. Ecological demands, relationship with the type of substratum, and microhabitat preferences were noted and several ecological groups are suggested. Rare and endangered species and factors affecting Ascomycetes diversity are discussed. Several species new to the Czech Republic were recorded, viz. Apiorhynchostoma altipetum, Camarops pugillus, Crassochaeta fusispora, Lophiotrema boreale, and Togniniella acerosa.

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