Recognition of the nothogenus ×Abacopterella (Thelypteridaceae) [PASSED]

Name of taxon

×Abacopterella

Rank of taxon

Nothogenus

Approximate number of species affected

Description of change

Recognition of the nothogenus × Abacopterella T.E.Almeida & A.R.Field, a taxon of hybrid origin with parentage originating from species of Abacopteris Fée and Christella H.Lév.

Reason for change

Since nothogenera are to be recognized in PPG II, we propose the inclusion of the nothogenus × Abacopterella T.E.Almeida & A.R.Field, which includes the nothospecies × Abacopterella altifrons T.E.Almeida & A.R.Field (Abacopteris aspera (C.Presl) Ching × Christella queenslandica (Holttum) A.R.Field & Z.Bloesch). Both nothotaxa were described based on robust phylogenomic evidence (Bloesch et al. 2022, Almeida et al. 2023), and both Abacopteris and Christella are recognized in the current Thelypteridaceae classification (Fawcett and Smith 2021, Fawcett et al. 2021).

Reference(s) for publication of the name

Almeida TE, Smith AR, Bostock PD, Bloesch Z, Field AR. 2023. × Abacopterella altifrons (Thelypteridaceae), a new intergeneric fern hybrid from Australia. Austrobaileya 13: 41–50.

Bloesch Z, Nauheimer L, Almeida TE, Crayn D, Field AR. 2022. HybPhaser identifies hybrid evolution in Australian thelypterid ferns. Molecular Phylogenetics and Evolution 173: 107526. DOI: 10.1016/j.ympev.2022.107526

Fawcett S, Smith AR, Sundue M, Burleigh JG, Sessa EB, Kuo L-Y, Chen C-W, Testo WL, Kessler M, GoFlag Consortium, Barrington DS. 2021. A global phylogenomic study of the Thelypteridaceae. Systematic Botany 46: 891–915. DOI: 10.1600/ 036364421X16370109698650

Fawcett S, Smith AR. 2021). A Generic Classification of the Thelypteridaceae. Sida, Botanical Miscellany 59. BRIT Press, Botanic Garden | Botanical Research Institute of Texas, U.S.A.: Fort Worth

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