An updated checklist of the silica-scaled chrysophytes from Russia Author Kapustin, Dmitry A. 0000-0003-3256-7776 K. A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya St. 35, 127276 Moscow, Russia dima_kapustin@outlook.com text Phytotaxa 2024 2024-10-23 669 3 165 193 https://doi.org/10.11646/phytotaxa.669.3.1 journal article 10.11646/phytotaxa.669.3.1 1179-3163 196. Synura taymyrensis (Kristiansen) Kapustin , comb. et stat. nov. Basionym: Synura petersenii f. taymyrensis Kristiansen in Kristiansen et al. 1997 . Nova Hedw. 65: 347, figs. 29, 30. Registration: http://phycobank.org/104968 Krasnoyarsk Territory ( Kristiansen et al. 1997 ); Republic of Yakutia ( Bessudova et al. 2021 , 2022a ,b). Remark. This taxon has very characteristic scales with a broad elliptic keel ornamented by a hexagonal pattern and a large base-plate hole. There is no doubt that this taxon should be considered as a distinct species rather than a form.