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The Aspleniaceae (spleenworts) is a family of ferns, included in the order Polypodiales〔 or in some classifications as the only family in the order Aspleniales. Members of the family all have intramarginal, linear sori with a flap-like indusium arising along one edge. Most pteridologists today consider this family of consisting of just two genera. Others still maintain segregate genera such as ''Phyllitis'' and ''Ceterach''; however, the species segregated into these genera all hybridize readily with undisputed ''Asplenium'' species. A recent phylogenenetic study of Aspleniaceae (Murukami et al. 1999) shows that species segregated as ''Camptosorus'' and ''Neottopteris'' are nested within ''Asplenium'' and recommends that they be included in that genus, but suggests that ''Hymenasplenium'' (including ''Boniniella'') and ''Phyllitis'' are distantly related to other ''Asplenium'' species and should be recognized at the generic level. The genus ''Diellia'', consisting of six species found only in Hawaii, was long considered to be independent, but now has been shown to nest within ''Asplenium''. The Aspleniaceae includes the two genera:〔 The genus ''Hemidictyum'' (formerly also placed in the Woodsiaceae) has been shown to be a phylogenic sister to Aspleniaceae,〔 and therefore considered for membership in this family, but has instead been moved to its own family Hemidictyaceae.〔 ==Phylogenic relationships== The following diagram for the eupolypods II, based on Lehtonen, 2011,〔 and Rothfels & al., 2012,〔 shows a likely phylogenic relationship between the Aspleniaceae and the other families of the eupolypods II clade. Christenhusz & Chase (2014) recommended the transfer of all eupolypods I to Polypodiaceae and all eupolypods II to Aspleniaceae, with previous families becoming subfamilies.〔 Accepting their reclassification, the corresponding cladogram for Aspleniaceae is: |2= }} }} }} }} 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「Aspleniaceae」の詳細全文を読む スポンサード リンク
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