Astragalus Consanguineu s and Allium Udinicum, new species to the Flora of Tuva

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Abstract

Two rare species of indigenous flora were for the first time recorded on the territory of the Republic of Tyva: Astragalus consanguineus Bong. et C.A. Mey., and Allium udinicum Antsup. Astragalus consanguineus was previously known on the territory of Russia only in the steppe zone of the West Siberian Plain from the border areas of the Omsk Region adjacent to Kazakhstan. Allium udinicum was considered endemic to the flora of Buryatia. Exact geographical coordinates of the new localities of these species, their main morphological differences from similar species, accompanied by photographs, are given in the paper.

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A. I. Pyak

National Research Tomsk State University

Author for correspondence.
Email: a_pyak@rambler.ru
Russian Federation, Lenina Ave., 36, Tomsk, 634000

A. V. Oorzhak

Tuva State University

Email: a_pyak@rambler.ru
Russian Federation, Lenina Str., 36, Kyzyl, Republic of Tyva, 667000

D. G. Chimitov

Institute of General and Experimental Biology SB RAS

Email: dabac@mail.ru
Russian Federation, Sakhyanovy Str., 6, Ulan-Ude, Republic of Buryatia, 670047

A. V. Rudyev

National Research Tomsk State University

Email: a_pyak@rambler.ru
Russian Federation, Lenina Ave., 36, Tomsk, 634000

D. V. Yusupovsky

National Research Tomsk State University

Email: a_pyak@rambler.ru
Russian Federation, Lenina Ave., 36, Tomsk, 634000

E. A. Pyak

National Research Tomsk State University

Email: a_pyak@rambler.ru
Russian Federation, Lenina Ave., 36, Tomsk, 634000

References

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2. Fig. 1. Astragalus consanguineus in the Ureg-Nur Lake basin (Mongun-Taiginsky district, Republic of Tyva): (a) fragment of a community dominated by A. consanguineus; (b) the upper part of the infructescence.

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3. Fig. 2. Allium udinicum in the Naryn River valley on the Sangilen highlands (Erzinsky district, Republic of Tyva): (a) general view of A. udinicum; (b) inflorescence; (c) cross section of a leaf; (d) appearance of leaves and stems.

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