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''Marattia'' is a small genus of primitive, large, fleshy eusporangiate ferns. It is the type genus of the family Marattiaceae, Order Marattiales and Class Marattiopsida. Formerly considered to be a much larger genus, genetic analysis has shown that ''Marattia'' in the broad sense was paraphyletic, and subsequently the genera ''Ptisana'' and ''Eupodium'' were split off. Except for one species in Hawaii, the genus is neotropical. The plants are large and terrestrial, with more or less erect rhizomes and fronds being 2-5 times pinnate. Sporangia are fused into synangia, and spores are monolete. Basal chromosome count is ''2n=80''. The type species is ''M. alata''. ==Species List== *''Marattia alata'' Sw. – Jamaica and Cuba *''Marattia cicutifolia'' Kaulf. – southern Brazil *''Marattia douglasii'' (C. Presl) Baker – pala, kapua ilio, or Hawaii potato fern; Hawaii *''Marattia excavata'' Underw. – Mexico to Panama *''Marattia interposita'' Christ – Guatemala to Panama *''Marattia laxa'' Kunze – Mexico to Panama *''Marattia weinmanniifolia'' Liebm. – southern Mexico to El Salvador 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「Marattia」の詳細全文を読む スポンサード リンク
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