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pteridogroup / ppg

Pteridophyte Phylogeny Group (PPG) taxonomic system for ferns and lycophytes
https://pteridogroup.github.io/
MIT License
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subsume Aenigmopteris into Tectaria [PASSED] #2

Closed crothfels closed 11 months ago

crothfels commented 1 year ago

Name of taxon

Aenigmopteris

Rank of taxon

Genus

Approximate number of species affected

Five

Description of change

In PPG I, Aenigmopteris was listed in the Dryopteridaceae as "subfamily placement uncertain." Under this proposal, Aenigmopteris would be treated as a synonym of Tectaria, in the Tectariaceae.

Reason for change

Chen et al. 201 performed a molecular phylogenetic analysis demonstrating that the type species of Aenigmopteris, plus one other Aenigmopteris species, form a clade that is strongly supported as being embedded deeply within Tectaria (the remaining three Aenigmopteris species were not sampled but are morphologically similar to the sampled ones). Applying a monophyly criterion, the choice would be either to synonymize Aenigmopteris under Tectaria, or to split Tectaria s.lat. into multiple genera (probably at least five of them, by coarse examination of the Chen et al. phylogeny). Given the lack of clear diagnostic characters for those Tectaria subclades, and the morphological consistency of Aenigmopteris within Tectaria s.lat., the authors advocated for synonymizing Aenigmopteris and made the necessary combinations in Tectaria.

Chen et al. - 2018 - End of an enigma: Aenigmopteris belongs in Tectaria.pdf

Reference(s) for publication of the name

The phylogenetic results and nomenclatural transfer off the Aenigmopteris species to Tectaria were published by Chen et al. 2018:

Chen, C.-W., Carl J Rothfels, A.M.A. Mustapeng, M. Gubilil, D.N. Karger, M. Kessler, and Y.-M. Huang. 2018. “End of an Enigma: Aenigmopteris Belongs in Tectaria (Tectariaceae: Polypodiopsida).” Journal of Plant Research 131 (1). https://doi.org/10.1007/s10265-017-0966-9.

doi:10.1007/s10265-017-0966-9

List the numbers of any related issues

No response

Code of Conduct

Ivan-Valdespino commented 1 year ago

The phylogenetic analysis by Chen et al. (2018) indicates Aenigmopteris belongs in Tectaria and the alternative of splitting the latter without morphological characters that can be used to identify subclades as separate genera strongly supports the proposal here submitted. Therefore, I agree with this proposal to subsume Aenigmopteris. Furthermore, the acceptance of the proposal would cause minimal nomenclatural disruption.

DanieleCicuzza commented 1 year ago

The results from Chen et al paper are convincing, the morphological characters are not different enough to support the change to a different genus. Phylogenetically it is also difficult to support it. I do support Carl Rothfels proposal for synonymizing to Tectaria.

joelnitta commented 1 year ago

This proposal was voted on during PPG Ballot 1 (voting period July 2023). A total of 66 votes were cast. There were 66 'Yes' votes (100%) and 0 'No' votes (0%). The proposal passes.

joelnitta commented 11 months ago

Already implemented in data, closing.