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Author: search.filters.author.Hyde, Kevin D.Subject: search.filters.subject.New species

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    Item type:Publication,
    Agaricus flocculosipes sp. nov., a new potentially cultivatable species from the palaeotropics
    (2012-01-01)
    Zhao, Rui Lin
    ;
    Hyde, Kevin D.
    ;
    Desjardin, Dennis E.
    ;
    Raspé, Olivier
    ;
    Soytong, Kasem
    Agaricus flocculosipes is described as new from northern Thailand and Mayotte based on morphology and ITS sequence analysis. The new species is compared with similar taxa, and a comprehensive description, line drawings, and colored photographs are provided. Agaricus flocculosipes is distinguished among the species in section Arvenses by its relatively large sporocarps (110-180 mm in diameter), erect floccose squamules on the surface of the stipe, and relatively small basidiospores (less than 6.5 μm long). Phylogenetic analyses based on ITS sequence data using maximum likelihood, parsimony, and Bayesian analyses all support A. flocculosipes as being a distinct species within section Arvenses. The new taxon is potentially cultivatable as it is presumably heterothallic, exhibits extensive genetic diversity, and occurs in section Arvenses, a lineage that contains other edible cultivatable taxa such as Agaricus arvensis and Agaricus subrufescens. © 2012 The Mycological Society of Japan and Springer.
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    Item type:Publication,
    Two species of Agaricus sect. Xanthodermatei from Thailand
    (2012-01-01)
    Zhao, Rui Lin
    ;
    Desjardin, Dennis E.
    ;
    Callac, Philippe
    ;
    Parra, Luis A.
    ;
    Guinberteau, Jacques
    Agaricus murinocephalus is described and illustrated as a new species. This taxon, presently known only from Thailand, is characterized by a context that generally does not discolor on exposure, the lack of a phenolic odor, a cap covered by very fine, appressed, dark grey squamules outside the grey disc on a whitish background, and a broken collar-like annulus. Agaricus endoxanthus, previously reported from South America, Europe, and Asia, is recorded for the first time in Thailand. Morphological and published molecular analyses place both taxa in A. sect. Xanthodermatei based on. © 2012. Mycotaxon, Ltd.