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Pellaeaceae : ウィキペディア英語版
Pteridaceae

Pteridaceae is a large family of ferns in the order Polypodiales.〔 Members of the family have creeping or erect rhizomes and are mostly terrestrial or epipetric (growing on rock). The leaves are almost always compound and have linear sori that are typically on the margins of the leaves and lack a true indusium, typically being protected by a false indusium formed from the reflexed margin of the leaf. The family includes four groups of genera that are sometimes recognized as separate families: the adiantoid, cheilanthoid, pteroid, and hemionitidoid ferns. Relationships among these groups remain unclear, and although some recent genetic analyses of the Pteridales suggest that neither the family Pteridaceae nor the major groups within it are all monophyletic, as yet these analyses are insufficiently comprehensive and robust to provide good support for a revision of the order at the family level.
==Traditional groups==

As traditionally defined, the groups within Pteridaceae are as follows:
* Adiantoid ferns (tribe ''Adianteae'' 〔(''Adianteae'' ) Tropicos.org. Missouri Botanical Garden. 14 Jan 2012〕); epipetric, terrestrial or epiphytic in moist habitats, rachis often dichotomously branching; sori relatively small and discrete with sporangia born on the false indusium rather than the leaf blade proper; only one genus:
*
* ''Adiantum'' L. – maidenhair ferns
* Cheilanthoid ferns; primarily epipetric in semiarid habitats; leaves mostly with well-developed scales or trichomes, often bipinnate or otherwise highly compound; sporangia mostly born in marginal sori with false indusia that are +/- continuous around the leaf margins; several genera, including:
*
* ''Argyrochosma'' (J.Sm.) Windham – false cloak ferns
*
* ''Aspidotis'' (Nutt. ex Hook.) Copel. – lace ferns
*
* ''Astrolepis'' D.M.Benham & Windham – cloak ferns
*
* ''Cheilanthes'' Sw. – lip ferns
*
* ''Notholaena'' R.Br. – cloak ferns
*
* ''Pellaea'' Link – cliff brakes〔〔
* Pteridoid ferns (tribe ''Pterideae'' 〔(''Pterideae'' ) Tropicos.org. Missouri Botanical Garden. 14 Jan 2012〕); terrestrial and epipetric in moist habitats; leaves mostly without prominent scales or trichomes, most often pinnate but sometimes more compound; sporangia born in marginal sori with false indusia that are +/- continuous around the leaf margins; several genera, including:
*
* ''Pteris'' L. – brakes
*
* ''Onychium'' Kaulf.〔〔
* Parkerioid ferns (tribe ''Parkerieae'' 〔(''Parkerieae'' ) Tropicos.org. Missouri Botanical Garden. 14 Jan 2012〕); aquatic in swamps and/or mangroves, including:
*
* ''Acrostichum'' L. – leather ferns
*
* ''Ceratopteris'' Brongn.〔〔
* Hemionitidoid ferns; terrestrial, epipetric or epiphytic in moist or semiarid habitats; leaves simple, pinnate, or more compound; sporangia born in linear non-marginal, exindusiate sori or sometimes in marginal sori; several genera, including:
*
* ''Anogramma'' Link
*
* ''Cryptogramma'' R.Br. – rock brakes
*
* ''Eriosorus'' Fée
*
* ''Hemionitis'' L.
*
* ''Jamesonia'' Hook. & Grev.
*
* ''Pityrogramma'' Link – gold ferns〔〔
* Vittarioid ferns (tribe ''Vittarieae'' 〔(''Vittarieae'' ) Tropicos.org. Missouri Botanical Garden. 14 Jan 2012〕); primarily epiphytic in tropical regions and all have simple leaves with sori that follow the veins and lack true indusia:
*
* ''Anetium''
*
* ''Antrophyum''
*
* ''Hecistopteris''
*
* ''Monogramma''
*
* ''Vittaria'' – Shoestring fern

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「Pteridaceae」の詳細全文を読む



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