TAXONOMIC ANALYSIS OF COMMUNITIES INVOLVING TAXUS BACCATA L.
Systematic analysis of the study of flora is an integral part of an integrated approach to solving the problem of rational use and protection of forests. A comparative systematic characterization of populations with the participation of a rare species of Taxus baccata in the Foothills and in the inner Mountainous regions of Dagestan was carried out. The study of populations of foothill Dagestan was studied on the example of buinak district at an altitude of 1000 m., the North-Eastern slope, Kazbekov at an altitude of 1044 m., the Eastern slope, Kaitag with a height of 800 m., the Western slope and the inner Mountain population on the example of Hunzakh district at an altitude of 1570 m. above sea level, the Northern slope. Given certain climatic conditions and the geographical coordinates of the places of growth. Herbarium material was collected. A floristic list of species studied in forests has been compiled Recorded 272 vascular plants, which belong to 240 genera, 81 families and 5 departments (Equisetophyta, Polypodiophyta, Pinophita, Magnoliophyta, Lycopodiophyta). The results of common taxa for the two regions, as well as the coefficient of similarity of floral composition of phytocenoses (Kj) are presented. The analysis of taxonomy and statistics for the regions of foothill Dagestan is carried out. There was an increase in the diversity of plant species in the direction from the Central to the North-Western region. The taxonomic analysis was carried out according to the «Synopsis of flora of the Caucasus», 2009. The study of populations is interesting because they grow rare species of plants, indicating the antiquity of the described communities.