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''Sceptridium'' is a genus of seedless vascular plants, closely allied to (and often included as a subgenus〔(subgenus ) Tropicos.org. Missouri Botanical Garden. 16 Jan 2012〕 of) the genus ''Botrychium'' (the moonworts and grapeferns). It is also closely related to the genus ''Botrypus'' (the rattlesnake fern, often treated as the subgenus ''Osmundopteris'' under ''Botrychium''). ''Sceptridium'' species are commonly called the grape-ferns. These plants are small with fleshy roots, and reproduce by spores shed into the air. They differ from the moonworts in having at least some sterile fronds (all fronds in ''Botrychium'' are spore-bearing), and in the fronds being bi- or tri-pinnate (''Botrychium'' are single pinnate, or rarely bipinnate); and from ''Botrypus'' in being evergreen, or at least winter-green (''Botrypus'' are deciduous) and having the non-spore-bearing part of the frond long-stalked (short-stalked in ''Botrypus''). ==Species== ''Sceptridium'' species and their ''Botrychium'' synonyms include: * – Cut-leaved grape-fern〔() MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. January 16, 2012〕 = ''Botrychium dissectum'' = ''Botrychium obliquum'' 〔(''Botrychium obliquum'' ) Tropicos.org. Missouri Botanical Garden. 16 Jan 2012〕 * – Alabama grape-fern = ''Botrychium jenmanii'' = ''Botrychium alabamense'' 〔(''Botrychium alabamense'' ) Tropicos.org. Missouri Botanical Garden. 16 Jan 2012〕 * – Leather grape-fern〔 = ''Osmunda multifida'' = ''Botrychium silaifolium'' = ''Botrychium multifidum'' = ''Botrychium coulteri'' = ''Botrychium californicum'' 〔(''Botrychium multifidum'' ) Tropicos.org. Missouri Botanical Garden. 16 Jan 2012〕 * – Blunt-leaved grape-fern〔 (northeastern North America) = ''Botrychium oneidense'' 〔(''Botrychium oneidense'' ) Tropicos.org. Missouri Botanical Garden. 16 Jan 2012〕 * – Ternate grape-fern〔 = ''Botrychium rugulosum'' 〔(''Botrychium rugulosum'' ) Tropicos.org. Missouri Botanical Garden. 16 Jan 2012〕 * – Island grape-fern = ''Botrychium subbifoliatum'' 〔(''Botrychium subbifoliatum'' ) International Plant Names Index (IPNI) 16 Jan 2012〕 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「Sceptridium」の詳細全文を読む スポンサード リンク
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