Unveiling a longstanding misinterpretation: revisiting phylogenetic and morphological evidence from Arabis verna (L.) W.T.Aiton, supports the description of a monospecific taxon, Pseudoarabis A.R. Khosravi & A. Eslami-Farouji gen. nov.

Document Type : Original article

Authors

1 Department of Biology, College of Science, Shiraz University, Shiraz, Iran

2 Department of Biotechnology, Faculty of Science, Selçuk University, Konya, Türkiye

Abstract

The tribe Arabideae includes various species worldwide with ornamental features; however, it has undergone taxonomic revisions and has been reclassified into different genera. Despite the available literature, the taxonomic assignment of some taxa requires further consideration. This study therefore addresses the true taxonomic position of Arabis verna (L.) W.T.Aiton, which is not phylogenetically nested within other Arabis species but is instead closely related to Aubrieta Adans,. The species is naturally distributed in Southwest Asia, North Africa, and South Europe, and its taxonomic delimitation has remained unresolved. Phylogenetic evidence from previous authorities, together with our morphological observations, supports the distinct status of A. verna from the genus Aubrieta. Consequently, A. verna is excluded from Aubrieta and transferred to a newly established genus, Pseudoarabis A.R. Khosravi & A. Eslami-Farouji gen. nov., and the new combination, P. verna (L.) A.R. Khosravi & A. Eslami-Farouji comb. nov. is proposed.

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