The Orchids of the Rostov Region: Distribution and Conservation's Problems
The complete materials on the distribution patterns of 10 rare and disappearing species from 7 genera of the family Orchidaceae Juss. in the steppe part of the Don's Basin in the bound of the Rostov region are presented in the article. The history of studies of orchids in this territory shortly examined. On the materials of herbarium'collections (RV, RWBG) all locations of the species of the Orchidaceae are recorded and pointed maps of placing of them in the Rostov region is given. Basic attention is given to the new locations and habitats of the species, also to the scientific importance of this finds. Ways of the orchid's species conservation at them natural habitats are analyzed; critical state of conservation three species ( Cephalanthera damasonium, Listera ovata, Neottia nidus-avis) is recognized.