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''Collybia tuberosa'', commonly known as the lentil shanklet or the appleseed coincap, is an inedible species of fungus in the Tricholomataceae family, and the type species of the genus ''Collybia''. Like the two other members of its genus, it lives on the decomposing remains of other fleshy mushrooms. The fungus produces small whitish fruit bodies with caps up to wide held by thin stems up to long. On the underside of the cap are closely spaced white gills that are broadly attached to the stem. At the base of the stem, embedded in the substrate is a small reddish-brown sclerotium that somewhat resembles an apple seed. The appearance of the sclerotium distinguishes it from the other two species of ''Collybia'', which are otherwise very similar in overall appearance. ''C. tuberosa'' is found in Europe, North America, and Japan, growing in dense clusters on species of ''Lactarius'' and ''Russula'', boletes, hydnums, and polypores. ==Taxonomy, phylogeny, and naming== |2=''Clitocybe dealbata'' }} |2= }} }} | caption=Phylogeny and relationships of ''C. tuberosa'' and closely related fungi based on ribosomal DNA sequences.〔 }} The species was first described under the name ''Agaricus tuberosus'' by the French naturalist Jean Bulliard in the 6th volume of his ''Herbier de la France'' (1786).〔 Christian Hendrik Persoon called it ''Agaricus amanitae'' subsp. ''tuberosus'' in his 1799 publication ''Observationes Mycologicae'',〔 while Samuel Frederick Gray referred it to ''Gymnopus'' in 1821.〔 It was transferred to ''Collybia'' by Paul Kummer in 1886.〔 The species has also been called ''Microcollybia tuberata'' in a 1979 publication by Joanne Lennox,〔 but the genus ''Microcollybia'' has since been folded into ''Collybia''.〔 Additional taxonomic synonyms include ''Marasmius sclerotipes'' Bres. 1881, ''Chamaeceras sclerotipes'' (Bres.) Kuntze 1898, and ''Collybia sclerotipes'' (Bres.) S.Ito 1950.〔 Molecular phylogenetic analysis reported in 2001 used RNA sequences to establish that ''C. tuberosa'' forms a monophyletic group with ''C. cookei'' and ''C. cirrhata'';〔 this finding was later corroborated in a 2006 publication.〔 The specific epithet ''tuberosa'' is derived from the Latin word for "tuberous".〔 The mushroom is commonly known as the "lentil shanklet",〔 or the "appleseed coincap".〔 Samuel Gray called it the "tuberous naked-foot" in his 1821 ''Natural Arrangement of British plants''.〔 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「Collybia tuberosa」の詳細全文を読む スポンサード リンク
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