Proposals (48–51) and nomenclatural novelties for the class Mulgedio-Aconitetea and related vegetation in Russia

We outline the nomenclatural novelties that became necessary following a comprehensive inventory of the syntaxonomic diversity of the class Mulgedio-Aconitetea in Russia. This inventory was conducted as part of the ongoing project “Vegetation Classification of Russia”. As a result, we present four nomenclatural proposals, validate one alliance name and four association names, and publish five new associations. We also raise two suballiances to alliance rank and four subassociations to association rank. In addition, one class name, one order name and two alliance names are mutated. (48) Rubo-Cardaminetum macrophyllae Guinochet 1982 nom. ambig. propos. Typus: relevé 4 in table 2 in Guinochet (1982) (holotypus) (49) Trollio asiatici-Crepidion sibiricae Guinochet ex Chytrý, Pešout et Anenkhonov 1993 typus cons. propos. Typus: Veratro lobeliani-Caricetum altaicae Lashchinskiy et Gorshkova 1995 nom. cons. propos. (50) Veratro lobeliani-Caricetum altaicae Lashchinskiy et Gorshkova 1995 nom. cons. propos. Typus: Lashchinskiy and Gorshkova (1995), p. 37; relevé 63, table 2 (=) Carici altaicae-Allietum schoenoprasi Krasnoborov 1961 Typus: Krasnoborov (1961), pp. 141–142, relevé 233a (51) Aconito paskoi-Geranion albiflori Zhitlukhina et Onishchenko ex Ermakov, Shaulo et Maltseva 2000 nom. cons. et typus cons. propos. Typus: Saussureo frolowii-Bupleuretum aurei Zhitlukhina et Onishchenko ex Ermakov, Shaulo et Maltseva 2000 typus cons. propos. (≡) Athyrion distentifolii Lashchinskiy 1999 Typus: Athyrietum distentifolii Lashchinskiy et Gorshkova 1995 nom. illeg. (Art. 31) Taxonomic reference : POWO (2026) for vascular plants, except for Chrysosplenium sibiricum (Ser.) A. P. Khokhryakov 1989 and Geranium krylovii Tzelev 1993, and WFO (2026) for bryophytes. Abbreviations : ICN = International Code of Nomenclature for algae, fungi, and plants (Turland et al. 2025); ICPN = International Code of Phytosociological Nomenclature (Theurillat et al. 2021).