SOME RARE PLANT COMMUNITIES OF FOREST-STEPPE IN THE SOUTH OF THE VITIMSKIY PLATEAU
The article presents the results of research of rare forest-steppes communities in the south of the Vitim plateau. The larch and primary birch forests with Cypripedium guttatum Sw., C. calceolus L., Herminium monorchis (L.) R. Br. is considered as typical forest plant communities. Plant communities with rare and endemic plants include phytocenoses with rare and endangered species listed in the Red Book of Buryatia in 2013 - Cypripedium calceolus L., Mertensia davurica (Pallas ex Smis) etc. Also endemic plant communities with Oxytropis sylvatica (Pall.) DC., Potentilla crebridens Juz. etc. The relict mid-Holocene landscape in the shore of the lake Maloe Eravnoe - Shiringinsky pine forest is protected area of plateau.