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''Inocybe cookei'', commonly known as the straw fibrecap, is a species of mushroom in the Inocybaceae family. It was first described in 1892 by Giacomo Bresadola, and is named in honour of Mordecai Cubitt Cooke. The species can be found in Europe, Asia and North America. It produces small mushrooms of an ochre colour, with a prominent umbo, fibres on the cap and a distinctive bulb at the base of the stem. It grows from soil in mixed woodland, and is encountered in summer and autumn, though is not common. Ecologically, it feeds through use of ectomycorrhiza. ''Inocybe cookei'' has been described as both toxic and non-toxic, but either way, is not advised for consumption. ==Taxonomy and naming== }} |caption=Phylogeny and relationships of ''I. cookei'' and related species in section ''Maculata'' based on ITS, large-subunit, and mitochondrial small-subunit rRNA sequence data.〔 }} ''Inocybe cookei'' was first described by Giacomo Bresadola in 1892;〔 the specific epithet ''cookei'' honours the British mycologist Mordecai Cubitt Cooke. Mycologists J. Stangl and J. Veselský described ''Inocybe kuthanii'' in 1979, which was later described as a variety of ''Inocybe cookei'' (''Inocybe cookei'' var. ''kuthanii'') by Thom Kuyper in 1986, but MycoBank now lists both names as synonyms of ''I. cookei''.〔(【引用サイトリンク】title=''Inocybe cookei'' )〕 The mushroom is commonly known as the straw fibrecap.〔 Within ''Inocybe'', it is placed within the subgenus ''Inosperma'',〔 and was previously categorised within the section ''Rimosae''.〔 However, phylogenetic analysis has shown that section ''Rimosae'' as formerly defined does not form a monophyletic group (that is, descended from a single exclusive ancestor), and former ''Rimosae'' species are better grouped into two clades, ''Maculata'' and ''Rimosae''. Phylogenetic analysis has placed the species in the clade ''Maculata''. Other species joining ''I. cookei'' in the ''Maculata'' clade include ''I. maculata'', ''I. quietiodor'', ''I. rhodiola'', ''I. adaequata'', and ''I. erubescens''. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Inocybe cookei」の詳細全文を読む スポンサード リンク
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