Новые локальные флоры восточного макросклона арктической части Полярного Урала и их положение в структуре региональной флоры

Abstract

Summary. The data on composition and structure of two new local floras of vascular plants on the Eastern slopes of the Arctic part of the Polar Urals – low-mountain range Janganape and lower reaches of the river Njarovoichadata. A brief description of natural conditions and vegetation of these areas are given. The taxonomic, geographical and ecological-cenotic structures of these flora are characterized. The comparison of new local flora with some other flora of the region is carried out, which shows their representativeness for the described region. At the same time, it is shown that the structure of Polar Urals local floras is significantly different from other similar natural conditions of the Arctic regions of Russia. There are a number of new finds for the Polar Urals species (27), also found 20 species from the Main list of the current red Book of YANAO and 17 species included in its Annex 1.