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''Cyathus'' is a genus of fungi in the family Nidulariaceae. Along with the genera ''Crucibulum'', ''Mycocalia'', ''Nidula'' and ''Nidularia'', they are known collectively as the bird's nest fungi due to their small nest-like fruiting bodies containing egg-shaped peridioles. The genus ''Cyathus'' was monographed by mycologist Lloyd (1906), and later Brodie (1975, 1984), and their species concepts, especially those of Brodie (1975), are followed by most mycologists. ==Taxonomic characters== The differentiation of ''Cyathus'' species is based on observable characters, such as fruiting body shape, coverings and plications of peridia, and microscopic characteristics such as the anatomy of peridioles, and the size and shape of basidiospores. The following characters are used to help identify ''Cyathus'' species: * ''Shape'' * ''Size'' * ''Color'' * ''Peridium'' * ''Plication'' means being folded in pleats. * ''Setae'' are rigid bristles made of compacted hyphae that are sometimes found at the mouth of the peridium. * The ''emplacement'' is the rounded mass of hyphae at the lower, narrow end of the fruiting body which attaches it to the growing surface. Microscopic characters * ''Tunica'': a thin membrane that is the outermost covering layer of the peridioles. * ''Cortex'': in this article, the cortex refers to the tissue layer comprising the wall of the peridiole. * ''Spores'': 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「List of Cyathus species」の詳細全文を読む スポンサード リンク
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