Home – Home – Jornals – Flora and Vegetation of Asian Russia 2025 number 4

In connection with the critical revision of the species of the genus Hackelia Opiz within Eurasia, herbarium materials in the collections stored in the Herbariums of LE, MW, NSK, NS, TK, ALTB, AA, TAD, as well as virtual collections posted on the aggregator Global plants on JSTOR were studied. The analysis of morphological, karyological, palynomorphological, carpological characters and the results of molecular genetic studies showed that nine species of the genus Hackelia from three sections are found in Eurasia. The revision allowed us to identify changes in the taxonomy and distribution of species of the genus Hackelia, describe a new section Popovia Ovczinnikova, validate the name of the section Macrophylla Lian et J.Q. Wang ex Ovczinnikova, describe a new species for science H. lipschitzii Ovczinnikova from the Republic of Tajikistan, and cite new localities of the discussed species. H. deflexa (Walenb.) Opiz is recorded for the first time for the Xinjiang Uyghur Autonomous Region in China, it is shown that H. thymifolia (A. DC.) I.M. Johnst. is limited in its distribution to Northern and Central Asia, and does not grow in the Pamirs. The Pamir plants are described as a new species. The synopsis for all taxa includes: nomenclatural citation, information on type specimens and new localities, data on ecological features and distribution, range maps for 3 species, a key to identifying sections and species. The lectotype of name Myosotis deflexa Walenb. is designated. The description of H. lipschitzii includes a diagnosis, a comparative table of diagnostic features of the new species and other species of the genus, the main features of the eremocarps are illustrated in the figure, and a photograph of the holotype is provided. In discussing the taxonomy of the genus within the full range, a new nomenclatural combination of the species H. torvum (Dimon et M.A.M. Renner) Ovczinnikova from Australia is proposed.