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Agaricaceae

The Experts below are selected from a list of 846 Experts worldwide ranked by ideXlab platform

Else C Vellinga – 1st expert on this subject based on the ideXlab platform

  • four new species in leucoagaricus Agaricaceae basidiomycota from asia
    Mycologia, 2015
    Co-Authors: Zai-wei Ge, Zhu L Yang, Tayyaba Qasim, A. N. Khalid, Rizwana Nawaz, Else C Vellinga

    Abstract:

    The genus Leucoagaricus has been well studied in Europe. However, species diversity of Leucoagaricus in Asia remains poorly known, especially in the mountains of southwestern China, a hot spot for biodiversity. Based on morphological characters and molecular data, four new species are described, La. asiaticus, La. subcrystallifer, La. subpurpureolilacinus and La. truncatus. Detailed morphological descriptions, drawings of microstructures for novel taxa and comparisons with closely allied taxa are provided. Phylogenetic analyses inferred from internal transcribed spacer (ITS) and region 6-7 of the gene for the second largest subunit of RNA polymerase II (rpb2) sequences show that the novel taxa are nested within a well-supported clade jointly formed by members of Leucoagaricus section Rubrotincti and subgenus Sericeomyces.

  • Lepiota albogranulosa sp.nov. (Agaricales, Agaricaceae) from Lahore, Pakistan
    Mycological Progress, 2015
    Co-Authors: Tayyaba Qasim, Else C Vellinga, A. N. Khalid, Abdul Razaq

    Abstract:

    Lepiota albogranulosa sp. nov. is described as new species from Lahore, Pakistan, using morphological and molecular (nrITS) characters. Its striking features are: white to off-white basidiocarps, broadly ellipsoid spores, and a pileus covering, which is a hymeniderm with chains of cylindrical to clavate cells and globose to subglobose epithelial cells; it forms with L. scaberula , and L. cystophoroides / Cystolepiota cystophora a separate clade within sect. Cristatae .

  • description and affinities of a sequestrate lepiota Agaricaceae from australia
    Mycological Progress, 2013
    Co-Authors: Teresa Lebel, Else C Vellinga

    Abstract:

    The novel Australian sequestrate species Lepiota geogenia is described and illustrated. It is characterized by globose to subglobose sporocarps that stain pale yellow with handling, and fusiform, asymmetric spores. Lepiota geogenia is a member of sect. Lepiota, to which the sequestrate western American Cryptolepiota spp, Lepiota viridigleba, and the European slightly secotioid L. sardoa also belong. We place the Cryptolepiota species within Lepiota, and provide two new names and one new combination.

Zai-wei Ge – 2nd expert on this subject based on the ideXlab platform

  • New species of Echinoderma and Lepiota (Agaricaceae) from China
    Phytotaxa, 2020
    Co-Authors: Zai-wei Ge

    Abstract:

    Three species of Lepiota sensu lato from China are described and illustrated based on morphological characters and molecular evidence. Echinoderma flavidoasperum and Lepiota omninoflava are new to science, while Lepiota echinacea is newly reported from China. Echinoderma flavidoasperum is characterized by a yellow pileus, nearly smooth stipe that discolors light red when bruised, and subcylindrical basidiospores. Lepiota omninoflava, so far only found in the tropics, is characterized by the yellow basidiomata, ellipsoid basidiospores and the absence of cheilocystidia. All three of the Chinese species are discussed and placed within a phylogeny based on the internal transcribed spacer (ITS) region, the large subunit (LSU) of the ribosomal DNA, the translation elongation factor 1-α (tef1-α) and the second largest subunit of RNA polymerase II (rpb2).

  • Pseudolepiota zangmui gen. et sp nov. (Agaricaceae, Basidiomycota), a new white-spored mushroom from China
    Phytotaxa, 2017
    Co-Authors: Zai-wei Ge, Zhu-liang Yang

    Abstract:

    Pseudolepiota zangmui , collected from mixed subtropical Fagaceae forests of Southwestern China, is described, illustrated and discussed as new based on unique morphological characters and molecular data. Pseudolepiota is distinctive in having white lamellae, a stipe covered with easily detached band-like floccose squamules, a pileipellis that is a subcutis layer made up of slightly interwoven cylindrical hyphae, dextrinoid basidiospores without a germ pore and hyphae without clamp connections. The combined morphotaxonomy and Maximum Likelihood tree inferred from rpb 2 and ITS sequences confirmed that Pseudolepiota is a member of Agaricaceae and is evolutionarily distinct from all other described genera and species within this family.

  • four new species in leucoagaricus Agaricaceae basidiomycota from asia
    Mycologia, 2015
    Co-Authors: Zai-wei Ge, Zhu L Yang, Tayyaba Qasim, A. N. Khalid, Rizwana Nawaz, Else C Vellinga

    Abstract:

    The genus Leucoagaricus has been well studied in Europe. However, species diversity of Leucoagaricus in Asia remains poorly known, especially in the mountains of southwestern China, a hot spot for biodiversity. Based on morphological characters and molecular data, four new species are described, La. asiaticus, La. subcrystallifer, La. subpurpureolilacinus and La. truncatus. Detailed morphological descriptions, drawings of microstructures for novel taxa and comparisons with closely allied taxa are provided. Phylogenetic analyses inferred from internal transcribed spacer (ITS) and region 6-7 of the gene for the second largest subunit of RNA polymerase II (rpb2) sequences show that the novel taxa are nested within a well-supported clade jointly formed by members of Leucoagaricus section Rubrotincti and subgenus Sericeomyces.

Alfredo Vizzini – 3rd expert on this subject based on the ideXlab platform

  • Looking for Lepiota psalion Huijser & Vellinga (Agaricales, Agaricaceae)
    MycoKeys, 2019
    Co-Authors: Alfredo Vizzini, Alessia Tatti, Henk A Huijser, Jun F Liang, Enrico Ercole

    Abstract:

    : Lepiotapsalion is fully described based on a recent collection from Sardinia (Italy) and the holotype. NrITS- and nrLSU-based phylogeny demonstrates that sequences deposited in GenBank as “L.psalion” and generated from two Dutch and one Chinese collections are not conspecific with the holotype and represent two distinct, undescribed species. These species are here proposed as Lepiotarecondita sp. nov. and Lepiotasinorecondita ad int.

  • looking for lepiota psalion huijser vellinga agaricales Agaricaceae
    MycoKeys, 2019
    Co-Authors: Alfredo Vizzini, Alessia Tatti, Henk A Huijser, Jun F Liang, Enrico Ercole

    Abstract:

    : Lepiotapsalion is fully described based on a recent collection from Sardinia (Italy) and the holotype. NrITS- and nrLSU-based phylogeny demonstrates that sequences deposited in GenBank as “L.psalion” and generated from two Dutch and one Chinese collections are not conspecific with the holotype and represent two distinct, undescribed species. These species are here proposed as Lepiotarecondita sp. nov. and Lepiotasinorecondita ad int.

  • leucoagaricus viridariorum Agaricaceae agaricales a new species from spain
    Phytotaxa, 2015
    Co-Authors: Guillermo Munoz, Agustin Caballero, Joan Carles Salom, Enrico Ercole, Alfredo Vizzini

    Abstract:

    Leucoagaricus viridariorum is proposed as a new species based on material collected in different areas of Spain. This taxon is characterised macroscopically by its small, whitish basidiomes, minutely squamulose-fibrillose pileus, evanescent ascendant annulus and growth in man-made environments. Microscopically, its subglobose to broadly ellipsoid spores, the clavate cheilocystidia and the trichodermic pileipellis are diagnostic. Based on molecular data of the internal transcribed spacer of nuclear ribosomal DNA (nrITS) this species belongs to the Leucoagaricus/Leucocoprinus clade of the Agaricaceae where it is sister to Leucoagaricus amanitoides.