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・ Amanineteyerike
・ Amanipodagrion
・ Amanirenas
・ Amanishakheto
・ Amanislo
・ Amanita
・ Amanita (album)
・ Amanita abrupta
・ Amanita aestivalis
・ Amanita albocreata
・ Amanita altipes
・ Amanita ananiceps
・ Amanita aprica
・ Amanita armeniaca
・ Amanita arocheae
Amanita atkinsoniana
・ Amanita augusta
・ Amanita australis
・ Amanita austroviridis
・ Amanita bisporigera
・ Amanita breckonii
・ Amanita brunnescens
・ Amanita caesarea
・ Amanita calyptroderma
・ Amanita ceciliae
・ Amanita chepangiana
・ Amanita cinereovelata
・ Amanita citrina
・ Amanita cokeri
・ Amanita crocea


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Amanita atkinsoniana : ウィキペディア英語版
Amanita atkinsoniana

''Amanita atkinsoniana'' is a species of fungus in the Amanitaceae family. It is found in the northeastern, southeastern, and southern United States as well as southern Canada, where it grows solitarily or in small groups on the ground in mixed woods. The fruit body is white to brownish, with caps that measure up to in diameter, and stems up to long and thick. The surface of the cap is covered with reddish-brown to grayish-brown conical warts. The stem has a bulbous base covered with grayish-brown scales. The fruit bodies smell faintly like bleaching powder. Although not known to be poisonous, the mushroom is not recommended for consumption.
==Taxonomy==
The species was first described by American botanist William Chambers Coker in 1917, in his monograph of Amanitas of the eastern United States. Coker's description was based on several specimens he had collected from various locations in North Carolina in September and October 1914. The specific name honors George Atkinson, a Cornell University mycologist who collected and described mushrooms in the southern and eastern United States in the late 19th century.〔 In 1952, Marcel Locquin chose to place it in the genus ''Armillaria'' as ''Armillaria atkinsoniana'', but this change was not adopted by later authors.〔〔
''Amanita atkinsoniana'' is classified in the stirps ''Microlepsis'' of subsection ''Solitariae'', in the section ''Lepidella'' of the genus ''Amanita''.〔 Species in the subsection ''Solitariae'' are distinguished by several characteristics: a volva composed of cellular structures of varying shape; rows of large cylindrical to slender club-shaped cells that are never dominant; a stem that typically has a bulbous base and remnants of the volva on the surface that are concentrated towards the base; the volva is not membranous nor nearly membranous, never forming a limb at the base of the stem, and never forming patches on the surface of the cap, where the outer layer consists of hyphae pressed against the surface.〔

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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