Format: ORAL

Magsar Urgamal1, Shukherdorj Baasanmunkh2, Batlai Oyuntsetseg3

1 Laboratory of Plant Systematics and Phylogenetics, Botanic Garden and Research Institute, Mongolian Academy of Sciences, Ulaanbaatar 13330, Mongolia 2 Department of Biology and Chemistry, Changwon National University, Changwon 51140, South Korea 3 Department of Biology, School of Arts and Science, National University of Mongolia, Ulaanbaatar 14201, Mongolia

In this study, we critically revised and updated the checklist of native vascular plants of Mongolia. The checklist comprises 3,041 native vascular plant taxa (2,835 species and 206 infraspecific species) from 653 genera and 111 families, including 7 lycophytes, 41 ferns, 21 gymnosperms, and 2,972 angiosperms. In the angiosperms, we identified the 14 families with the greatest species richness, ranging from 50 to 456 taxa. Species endemism is also noted here; 102 taxa are endemic to Mongolia, and 275 taxa are subendemic that co-occur in adjacent countries. Since 2014, a total of 14 taxa have been described new to science based on morphological evidences. Moreover, five genera and 74 taxa were newly added to the flora of Mongolia. Based on our critical revisions, names of three families, 21 genera, and 230 species have been changed in comparison to the previous checklist, “Conspectus of the vascular plants of Mongolia” (2014). We revised the checklist of Mongolian vascular plants provided by Urgamal et al. (2014), which included 3,127 taxa, belonging to 683 genera and 112 families. There were 3,069 native taxa from 682 genera and 110 families listed by Urgamal et al (2014) and the current checklist has been shortened and comprises 3,041 native vascular plant taxa from 653 genera and 111 families. There are 10 families with a high species richness (> 10 genera / > 94 species): Asteraceae (85 genera/456 species), Fabaceae (24/328), Poaceae (58/229), Rosaceae (28/168), Ranunculaceae (20/156), Brassicaceae (51/138), Cyperaceae (10/131), Lamiaceae (22/103), Caryophyllaceae (20/97), and Amaranthaceae (34/94). At the genus level, 10 genera represent a high species richness (> 40 species): Astragalus L. (127 species), Artemisia L. (103), Carex L. (99) Oxytropis DC. (97), Potentilla L. (75), Saussurea DC. (55), Taraxacum F.H.Wigg. (53), Allium L. (50), Salix L. (42), Ranunculus L. (41).