With this paper we continue a new annual series, the main purpose of which is to make significant floristic findings from Russia and neighboring countries more vi sible in Russia and abroad. In total, this paper presents new records for 24 vascular plant species from 4 Eurasian countries, obtained during field explorations, as well as during taxonomic revisions of herbarium materials. For the first time, new locali ty of Ageratum conyzoides, Salvia hispanica, Thymus rasitatus, Tulipa mongolica is recorded for Russia, Sparganium glomeratum for North Korea, Alyssum armenum for Georgia, Thymus pseudopannonicus for Kazakhstan, Cymbalaria muralis for the Asian part of Russia, Anthemis ruthenica for Siberia, Capsella orientalis, Echinops sphaerocephalus, Hera cleum sosnowskyi, Thymus elegans for Eastern Siberia, Persicaria orientalis for Western Si beria, Galatella crinitoides for the Black Soil Region, Centaurea orientalis for Zavolzhye, Silene dichotoma for the Altai Republic, Onobrychis arenaria, Symphyotrichum squamatum, Verbesina encelioides for the Republic of Dagestan, Geranium dahuricum for the Re public of Sakha (Yakutia), Koeleria spryginii for the Republic of Tatarstan, Phacelia tanacetifolia for Sakhalin, Adonis wolgensis for Novosibirsk Region. For each species, the general distribution, habitat, and taxonomy, indicating differences from related species and location are presented.

For the first time, new locality of Viola suavis is recorded for the Asian part of Rus sia, Chloris virgata, × Elyhordeum arcuatum and Persicaria orientalis for Siberia, Thalic trum amurense for Japan, Eritrichium pseudolatifolium and E. pseudostrictum for Kirghizia, Aquilegia jucunda, A. vulgaris and Viola hirta for Baikal Siberia, Astragalus pallescens and A. physodes for the North Caucasus, Astragalus guttatus for the Central Caucasus, Astragalus somcheticus, Lotus frondosus and Vicia bithynica for Dagestan, Medicago × varia and Lappula tuvinica for the Irkutsk region. For each species, the general distribu tion, habitat, and taxonomy, indicating differences from related species and loca tion are presented.

With this paper we continue a new annual series, the main purpose of which is to make significant floristic findings from Russia and neighboring countries more visible in Russia and abroad. In total, this paper presents new records for 38 vascular plant species from 7 Eurasian countries, obtained during field explorations, as well as during taxonomic revisions of herbarium materials. For the first time, new locality of Rochelia bungei is recorded for Europe and West Kazakhstan Region of Kazakhstan, Arnebia obovata for China and Kazakhstan, A. olgae for China, Ballota nigra for Kazakhstan and the Asian part of Russia, Potentilla chalchorum, P. tschimganica and P. doujonneana for Kyrgyzstan, Lappula heteracantha for Tajikistan, Hedysarum talassicum for Uzbekistan, Linaria grjunerae, Silene cserei for Siberia, Dianthus × courtoisii, Genista tinctoria, Verbascum phoeniceum for Eastern Siberia, Drosera × obovata, Pseudopodospermum strictum, Trollius austrosibiricus for the Altai Republic, Diarthron linifolium for the Republic of Buryatia, Dactylorhiza iberica, Epipactis condensata for the Republic of Daghestan, Platycladus orientalis for the Kabardino- Balkarian Republic, Diphasiastrum × zeilleri for the Republic of Mordovia, Typha latifolia for the Magadan Region, Senecio viscosus for the Novosibirsk Region, Solanum physalifolium for the Omsk Region, Echinops exaltatus for the Middle Volga, Lavandula angustifolia for the Samara Region, Galium affrenum for the Saratov Region, Bidens frondosa, Elatine triandra, Eleocharis klingei, Jacobaea grandidentata, Rhinanthus songaricus and Vicia megalotropis for the Tyumen Region, Bunias cochlearioides, Thalictrum ussuriense for the Inner Mongolia Autonomous Region of China, Isoëtes echinospora for the Yamal-Nenets Autonomous Area, Potentilla × bishkekensis for Issyk-Kul and Osh Regions of Kyrgyzstan.

Studies of the role of mosses as of proxies of actual state of the forests in the structural-dynamic organization of vegetation in extrazonal (paragenese) steppe allowed to find out the trends of the development of taiga-steppe coenoses within zonal taiga of Western Pre-Baikal.

While performing studies we imposed the tasks to reveal general (background) characteristics of structural-dynamic organization of the vegetation and to find out the peculiarities of formation of phytocoenoses on the sites reflecting the specifics and trends of their modern formation under anthropogenic impact, such as fires, cutting and pasturage during several decades. The studied area is situated in the transitional zone between the forest-steppe and zonal steppes characteristic for South-East Asia – i.e., in an interzonal ecotone. An interzonal ecotone consists of coenoses forming under transitional environmental conditions, in this case – between forest-steppe and steppe areas of North and Central Asia. Main attention was paid to the characteristics of the actual state of phytocoenoses forming under different conditions of their recent destructions; species composition of synfolia and the most characteristic proxy species determining the actual state and the vector of formation of steppe coenoses and forests during last decades were studied with a particular attention. While analyzing the data obtained, we took into account as well the characteristics of the vegetation structure in the studied area presented in published papers of numerous researchers for many years. The results of general studies of the Baikal Region vegetation were also taken into account. The interzonal ecotone itself including the area of our studies always reflects spatial-dynamic organization of vegetation in the environmental zones in time and space. Anthropogenic factors are increase of the spatial and structural difference of the plant communities of the environmental contact all time.