(2786) Proposal to change the conserved type of Ipomoea, nom. cons. (Convolvulaceae)

A new species of Argyreia (Convolvulaceae) from Yunnan, China

“…Although recent studies have shown that Argyreia should be treated as part of Ipomoea L. ( Muñoz-Rodríguez et al 2019 ) and Argyreia is merged into Ipomoea by Wood et al (2020) , we chose not to follow the proposed classification in the present work, as further study of Old World taxa is still required ( Traiperm and Suddee 2020 ). As it concerns Ipomoea , the possibility to keep the several established smaller genera has the potential to maintain nomenclatural stability ( Eserman et al 2020 ). So we do not subsume Argyreia into Ipomoea at this time and accordingly maintain the well-established generic concepts ( Rattanakrajang et al 2022 ).…”

New plastomes of eight Ipomoea species and four putative hybrids from Eastern Amazon

“…Ipomoea species are broadly distributed in the world, especially in the tropics and subtropics [ 12 – 14 ], where about 600–700 species are known [ 12 ], or about 800–900 species in the broader generic concept based on recent phylogenetic analysis, considering the genera Argyreia , Astripomoea , Blinkworthia , Lepistemon , Lepistemonopsis , Mina , Paralepistemon , Rivea , Stictocardia and Turbina nested within Ipomoea [ 11 , 15 , 16 ]. The genus Ipomoea is recognized within the tribe Ipomoeeae, which has been subdivided into two main clades [ 11 , 16 , 17 ], with long history of taxonomic and nomenclatural problems [ 16 , 18 ]. Widely known as “morning glories” or “bindweeds”, the species of the genus present a high commercial value, either as ornamental plants or food crops [ 13 , 19 ], with the sweet potato ( I .…”

Rebuttal to “(2786) Proposal to change the conserved type of Ipomoea, nom. cons. (Convolvulaceae)”

“…We note that the two clades “Astripomoeinae” and “Argyreiinae” referred to by Eserman & al. (2020) are based on an earlier phylogenetic analysis (Eserman & al., 2014) that included only 27 species to represent more than 800 species. It is thus important to note that any re‐arrangements other than recognising an expanded, monophyletic Ipomoea as advocated by several authors for more than 20 years (e.g., Wilkin, 1999; Manos & al., 2001; Muñoz‐Rodríguez & al., 2019, 2022, 2023) would require more nomenclatural changes than those carried out by Muñoz‐Rodríguez & al.…”

“…A proposal to change the type of Ipomoea L., nom. cons., from I. pes‐tigridis L. to I. triloba L. was submitted in 2020 (Eserman & al., 2020, proposal 2786) and has recently been recommended for acceptance by the Nomenclature Committee for Vascular Plants (Applequist, 2023). In this article, we argue that this proposal to change the type of Ipomoea is unnecessary and it has no basis in evidence that justifies the change.…”