Three new alien species of Chenopodiaceae s. str. (Amaranthaceae s. l.) are reported for the flora of Russia, the North American Chenopodiastrumsimplex and Australian Dysphania carinata and D. pumilio. The identification of the specimens of Chenopodiastrum simplex from Moschny Island in the Leningrad Region (European Russia) was confirmed using both morphological and phylogenetic analyses. Morphologically, C. simplex is very similar to C. badachschanicum having the same fruit and seed characters. A single specimen of Dysphania carinata from Primorye Territory (the Russian Far East) was previously identified as Chenopodium pumilio (≡ Dysphania pumilio) incorrectly. Only recently, the latter species has been indeed found in Beslan town, Republic of North Ossetia – Alania (the North Caucasus). For each species, the possible degree of naturalization is discussed.
The article presents data on the type specimens of the names of 29 validly published taxa of the genus Potentilla L. described from the Caucasus and some adjacent territories, kept in the Herbarium of the Komarov Botanical Institute RAS (LE). Listed for each taxon are its Latin name with a nomenclatural citation, category of the type specimen(s), full text of the original herbarium label (in modern spelling), barcode of the specimen, data from the protologue, notes. The type collection contains 110 specimens, including 12 lectotypes (11 of them designated in this article: P. agrimonioides, P. alexeenkoi, P. argaea var. raddeana, P. armeniaca, P. caucasica, P. gelida, P. gelida var. glabrior and var. pilosior, P. nordmanniana, P. sphenophylla and P. svanetica), 8 isolectotypes, 5 holotypes, 10 isotypes, 24 syntypes, 25 paratypes and 26 specimens of the original material (original specimen). The lectotypes of P. adenophylla and P. lomakinii (second-step) are designated in the Herbaria G-BOIS and TBI respectively. The article also contains information about the specimen of the unpublished species «Potentilla jeleniewskii Juz.» (with a short diagnosis on the herbarium label). The images of the cited specimens stored at LE are available in the virtual herbarium of the Komarov Botanical Institute (https://en.herbariumle.ru).
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.