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Hymenasplenium

Hymenasplenium
Hymenasplenium cheilosorum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Aspleniaceae
Genus: Hymenasplenium
Hayata
Type species
Hymenasplenium unilaterale
(Lam.) Hayata. 1927
Synonyms
  • Asplenium sect. Hymenasplenium (Hayata) K. Iwats. 1975

Hymenasplenium is one of three genera of ferns in the Aspleniaceae (spleenwort family), in the eupolypods II clade of the order Polypodiales.[1][2] The others are Hemidictyum and Asplenium. Hymenasplenium was segregated because it is a natural grouping with differing rhizome morphology – dorsiventral v. radial for the rest of Asplenium, differing chromosome count – x=39 v. x=36 for the rest of Asplenium, and a clear monophyletic grouping based on genetic analysis. It was confirmed as a sister group to Asplenium in a 2015 molecular study of the genera.[3]

  1. ^ Cite error: The named reference Smith-2006 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Christenhusz-2011 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Ohlsen2015 was invoked but never defined (see the help page).

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