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Rickenella
''Rickenella'' is a genus of brightly colored bryophilous agarics in the Hymenochaetales that have an omphalinoid morphology.〔〔〔〔 They inhabit mosses on mossy soils, peats, tree trunks and logs in temperate regions of both the Northern and Southern Hemispheres. Phylogenetically related agarics are in the genera ''Contumyces'', ''Gyroflexus'', ''Loreleia'', ''Cantharellopsis'' and ''Blasiphalia'', as well as the stipitate-stereoid genera ''Muscinupta'' and ''Cotylidia''.〔 and the clavarioid genus, ''Alloclavaria''.〔
''Rickenella'' is most similar to ''Contumyces'' and ''Blasiphalia'', from the former differing by having its cystidia on the cap, stipe, and hymenium solitary and scattered. The hair-like cystidia on the cap and stipe give the small mushrooms a fuzzy appearance when viewed through a magnifying glass or hand lens.〔〔 This helps to distinguish the genus from genera like ''Loreleia'', which can be orange colored and inhabits similar sites, as well as other brightly pigmented omphalinoid genera. ''Rickenella'' does not produce massive clasping, hand-like appressoria on the rhizoids of its host, as does ''Blasiphalia''. Instead, ''Rickenella'' produces a small appressorium or no appressoria and penetrates the rhizoids of its moss hosts, growing within the cells.〔〔〔
''Blasiphalia'' is a recent segregate of ''Rickenella''.〔
==Etymology==
''Rickenella'' was named after the German mycologist Adalbert Ricken, author of "Die Blätterpilze (Agaricaceae) (1915) Deutschlands und der angrenzenden Länder, besonders Oesterreichs und der Schweiz".〔(caliban.mpiz-koeln.mpg.de )〕
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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