Вклад Рудольфа Владимировича Камелина в сравнительную флористику

Floristics is referred to the biological sciences, which are constantly evolving and improving both in terms of development methods of study and approaches to different types of analysis – taxonomic, ecological, geographical, florogenetic and other. The purpose of this article is to show the huge contribution of one of the leading florists of Russia – Rudolf Vladimirovich Кamelin to the development of floristry. The article presents his views on the flora as the research object, the research methods and analyses of flora. R. V. Kamelin made a particularly large contribution to the development of problems associated with the florogenesis of the mountainous areas and floristic zoning. He gave the definition of “flora” term and showed its place as a subsystem of the biota. R. V. Kamelin emphasized that the formation and transformation of biota in certain areas went together, so you need a comprehensive study. He introduced the concept of “the principle of undersaturation of flora (and biota)” and the explanation of its causes, the basic concept of the natural flora that should be used for floristic zoning. He proved the necessity of application of two groups of signs to be used on different hierarchical levels of zoning. When zoning is small and often quite poor in floristic territories, the criteria for determining boundaries can serve as a comparative analysis of the species composition of floras (taxonomic, geographical, ecological and florogenetic), both qualitative and quantitative. In R. V. Kamelin opinion, for rich floras and major floristic units an originality of the composition of the flora (level of endemism) is the main thing. R. V. Kamelin developed and offered chorionomical (geographical) and stadial analyses of the flora