Rescue of Cornopteris and Pseudathyrium (Athyriaceae, Polypodiopsida) [PASSED]

[weiran007]

Author(s) of proposal

Ran Wei

Name of taxon

Cornopteris, Pseudathyrium

Rank of taxon

Genus

Approximate number of species affected

1

Description of change

Resurrection of Pseudathyrium to keep Cornopteris and Athyrium monophyletic.

Reason for change

Morphologically, Pseudathyrium is characterized by the glabrous leaf axes and caducous indusia, which is distinct from typical Cornopteris species with hairy leaf axes and exindusiate sori, and also most Athyrium species with persistent indusia. According to molecular evidence, Pseudathyrium is the sister group to Cornopteris, and the resurrection of the former will keep both Cornopteris and Athyrium monophyletic.

Reference(s) for publication of the name

Wei R, Ebiharab A, Zhu YM, Zhao CF, Hennequin S, Zhang XC. 2018. A total-evidence phylogeny of the lady fern genus Athyrium Roth (Athyriaceae) with a new infrageneric classification. Molecular Phylogenetics and Evolution, 119: 25-36.

List the numbers of any related issues

No response

Code of Conduct

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[crothfels]

Hi all - a quick comment/support -- With Julia Hobbie and others we have a manuscript in prep. that corroborates what Ran says: the athyriids comprise five strongly supported subclades (Ephemeropteris, (Anisocampium, ((Pseudathyrium, Cornopteris), Athyrium s.str.)). There are some discrepancies in earlier papers about the Ephemeropteris/Anisocampium, but that was due to a sequence mix-up.

[joelnitta]

This proposal was voted on during PPG Ballot 4 (voting period October 2023). A total of 60 votes were cast. There were 54 'Yes' votes (90%) and 6 'No' votes (10%). The proposal passes.