Najas tenuissima (Hydrocharitaceae), a new species to the flora of Tyva
- Authors: Shaulo D.N.1, Molokova N.I.2, Zykova E.Y.1
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Affiliations:
- Central Siberian Botanical Garden of Siberian Branch of RAS
- State Nature Reserve “Azas”
- Issue: Vol 109, No 6 (2024)
- Pages: 616-618
- Section: FLORISTIC RECORDS
- URL: https://rjmseer.com/0006-8136/article/view/666551
- DOI: https://doi.org/10.31857/S0006813624060075
- EDN: https://elibrary.ru/PZNFNM
- ID: 666551
Cite item
Abstract
For the first time, information is provided about the presence of Najas tenuissima in the northeast of Tyva (Todzha District, Azas Lake), which significantly expands the knowledge on the species distribution in Russia. Najas tenuissima is a rare species listed in the “Red Data Book of the Russian Federation”. In Russia, its range is disjunctive; a few localities are known in the European part, the south of Central Siberia (Eastern Sayan: Tiberkul and Spasskoye Lakes) and in the Far East (Amur Region and Primorye Territory).
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About the authors
D. N. Shaulo
Central Siberian Botanical Garden of Siberian Branch of RAS
Author for correspondence.
Email: dshaulo@yandex.ru
Russian Federation, Zolotodolinskaya Str., 101, Novosibirsk, 630090
N. I. Molokova
State Nature Reserve “Azas”
Email: azasmolokova@mail.ru
Russian Federation, Agbaana Str., 20, Toora-Khem, 668530, Republic of Tyva
E. Y. Zykova
Central Siberian Botanical Garden of Siberian Branch of RAS
Email: elena.yu.zykova@gmail.com
Russian Federation, Zolotodolinskaya Str., 101, Novosibirsk, 630090
References
- Belavskaya A.P. 1994. Vodnyye rasteniya Rossii i sopredel'nykh gosudarstv [Aquatic plants of Russia and neighboring countries]. Leningrad. 64 p. (In Russ.).
- Bolotova Ya.V. 2009. Caulinia tenuissima (A. Br. ex Magnus) Tzvel. – In: Red Book of the Amur Region: Rare and endangered species of animals, plants and fungi]. Blagoveshchensk. P. 255–256 (In Russ.).
- Bolotova Ya.V., Kozyr I.V. 2008. Caulinia tenuissima (Najadaceae) – a new species for the flora of the Amur region – Bot. Zhurn. 93 (9): 1473–1474 (In Russ.).
- Govorov K.A. 1990. Todzha [Toja]. Krasnoyarsk. 66 p. (In Russ.).
- Kolesnikova T.D. 1965. Modern and past distribution of species of the genus Najas L. in the USSR and their significance for the paleogeography of the Quaternary period. – Bot. Zhurn. 50 (2): 182–190 (In Russ.).
- Pshennikova L.M. 2008. Caulinia tenuissima (A. Br.) Tzvel. – In: Krasnaya kniga Primorskogo kraya: Rasteniya. Redkiye i nakhodyashchiyesya pod ugrozoy ischeznoveniya vidy rasteniy i gribov [Red Book of Primorsky Territory: Plants. Rare and endangered species of plants and fungi]. Vladivostok. P. 294 (In Russ.).
- Rendle A.B. 1899. A systematic revision of the genus Najas. Trans. Linn. Soc. London. Bot. 5: 379–436.
- Shaulo D.N. 2009. About Isoеtes setacea Lam. (Isoеtaceae) in the Todzha lakes of Tyva. – Turczaninowia. 12 (1-2): 62–64 (In Russ.).
- Stepanov N.V. 2022. Caulinia tenuissima (A. Br. ex Magnus) Tzvelev. – In: Krasnaya kniga Krasnoyarskogo kraya. Redkiye i nakhodyashchiyesya pod ugrozoy ischeznoveniya vidy rasteniy i gribov [Red Book of the Krasnoyarsk Territory. Rare and endangered species of plants and fungi]. Krasnoyarsk. P. 280 (In Russ.).
- Suško U. 2008. Najas tenuissima – a new macrophyte species in flora of the Baltic countries. – Botanica Lithuanica. 14: 65–67.
- Tzvelev N.N. 1987. Najadaceae Juss. – In: Vascular plants of the Soviet Far East. Vol. 2. L. P. 342–345 (In Russ.).
- Tzvelev N.N. 2008. Caulinia tenuissima (A. Dr. ex Magnus) Tzvelev – In: Red Book of the Russian Federation (Plants and mushrooms). Moscow. P. 347–348 (In Russ.).
- Vargot E.V., Shcherbakov A.V., Bolotova Ya.V., Uotila P. 2016. Current distribution and conservation of Najas tenuissima (Hydrocharitaceae). – Nature Conservation Research 1 (3): 2–10.
- Volobaev P.A. 1991. New and rare species of higher aquatic plants for the flora of Siberia. – Bot. Zhurn. 76 (4): 616–618 (In Russ.).
- Voroshilov V.N. 1992. Notes on Naiads – Najdaceae Juss. Soviet Far East. – Bull. MOIP. Dept. biol. 97 (4): 111–112 (In Russ.).
- Zuykova E.I., Bochkarev N.A., Zheleznova I.V. 2005. Kharakteristika zooplanktona ozer todzhinskoy kotloviny v zavisimosti ot parametrov sredy [Characteristics of zooplankton in the lakes of the Todzha basin depending on environmental parameters]. – In: Prirodnyye usloviya, istoriya i kul’tura Zapadnoy Mongolii i sopredel’nykh regionov [Natural conditions, history and culture of Western Mongolia and adjacent regions]: Mater. VII Mezhdunar. konf. Kyzyl. Vol. 1. P. 159–161 (In Russ.).
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