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Clitocybe glacialis
''Clitocybe glacialis'' is a species of mushroom in the family Tricholomataceae. Formerly known as ''Lyophyllum montanum'', this is a snowbank mushroom, always associated with melting snow along snowbanks. Originally described by in 1957, this North American species is typically found growing under conifers on mountains.
== Taxonomy ==
The original specimen was collected in the Medicine Bow Mountains in Wyoming by mycologist Harry D. Thiers. In 1957, Alexander H. Smith, who had received the specimen from Thiers, described it as ''Lyophyllum montanum'', placing it in the ''Lyophyllum'' genus because of its dark gray color and gills that became ash-gray (''cinereous'') with age. However, it later became clear that this species lacked siderophilous granules—particles that darken when heated in acetocarmine—a trait characteristic of other ''Lyophyllum'' species. For this reason, Redhead ''et al''. in 2000 moved the species to the genus ''Clitocybe'' as ''C. glacialis'' (''Clitocybe montana'' was already used). They speculated that the dark pigmentation may be an adaptation to protect against the higher levels of ultraviolet radiation present in their montane environments.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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