Abstract
A record of Silene alexandrae B. Keller converts it to a new species for Mongolia. S. alexandrae was found on the Khavtag Mountain ranges in Dzungarian Gobi region. Data about previous records of this species in Mongolia are discussed and rejected. Characters distinguishing Silene alexandrae from close species S. altaica Pers. are given. We noted also new distribution points of fve taxa: Cortusa matthioli L. subsp. altaica (Losinsk.) Korobkov, Ranunculus turczaninovii (Luferov) Vorosch., Rubus saxatilis L., Polygonatum odoratum (Mill.) Druce and Pyrola rotundifolia L. – in Dzungarian Gobi region of Mongolia.
Highlights
A total of 3160 species of vascular plants, which belong to 684 genera and 108 families, have been recorded in the flora of Mongolia to date (Gubanov, 1996; Urgamal et al, 2014, 2016)
According to the latest classification by Grubov and Yunatov (1952), Mongolia is divided into sixteen phytogeographical regions based on floral composition, vegetation and geographical characteristics
The Dzungarian Gobi region is the extreme west of Gobi, which locates in Khovd province of Mongolia and near borders with China
Summary
A total of 3160 species of vascular plants, which belong to 684 genera and 108 families, have been recorded in the flora of Mongolia to date (Gubanov, 1996; Urgamal et al, 2014, 2016). The Dzungarian Gobi region is the extreme west of Gobi, which locates in Khovd province of Mongolia and near borders with China. Despite it is one of the desert regions of Mongolia (Grubov, 1982), several high mountains, such as Baitag Bogd (3400 m), Khavtag (2800 m), Takhiin Shar nuruu (2727 m), Khalzan (2105 m) and Mergen (1883 m) occur here. There are 879 species noted in the Dzungarian Gobi region, which shares 27.81 % of the Mongolian flora (Grubov, 1982; Urgamal et al, 2016; Oyuntsetseg et al, 2017). We record one new species and five new distribution points of vascular plants, which are new points for DzG region
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