For the first time, new locality of Viola suavis is recorded for the Asian part of Rus sia, Chloris virgata, × Elyhordeum arcuatum and Persicaria orientalis for Siberia, Thalic trum amurense for Japan, Eritrichium pseudolatifolium and E. pseudostrictum for Kirghizia, Aquilegia jucunda, A. vulgaris and Viola hirta for Baikal Siberia, Astragalus pallescens and A. physodes for the North Caucasus, Astragalus guttatus for the Central Caucasus, Astragalus somcheticus, Lotus frondosus and Vicia bithynica for Dagestan, Medicago × varia and Lappula tuvinica for the Irkutsk region. For each species, the general distribu tion, habitat, and taxonomy, indicating differences from related species and loca tion are presented.
The amino acid and elemental composition of birthwort (Aristolochia clematitis L.) plant species occurring in the Stavropol region has been studied. The analyses showed a high content of tyrosine in the above-ground parts and revealed the presence of 25 elements (K,
Статья посвящена геоботаническому описанию лесопарковой зоны города, дается список растений с указанием фенологи-ческой фазы и обилием видов встречающихся в исследуемой зоне. The article is devoted to the description of geobotanical park area of the city, gives a list of plants showing phenological phases and abundance of species occurring in the study area. Ключевые слова: ценоз, антропогенная трансформация, растительность, урбанизированная среда, обилие видов.
Superior/CAPES (finance code 001) to the first author, and financial support from Conselho Nacional de Desenvolvimento Científico e Tecnológico/CNPq (Project "História filogenética e fatores bióticos associados ao endemismo restrito em Angiospermas do Cerrado"/428673/2016-3) to the last author.
The article deals with the issues of localization and landscape preference of Pyatigorye’s phytocenoses ofthe upland steppes. The syntaxonomic composition of the steppe communities on the studied territory, as well as the typesof the floristic core, are indicated. It consists of graminoids, mesothermal perennials of long vegetation, caudex herbs ofan ephemeroid type of development, and bulbous geophytes. The features of communities, the reasons for their spatialdifferentiation are revealed. The distribution of species by relief elements and communities was determined expertlyon the basis of field studies (2018–2021). It was concluded that the main factors determining the diversity of uplandsteppe vegetation in the studied region are the nature of the destruction of the parent rock and soil development, the levelof insolation and ecotope moisture. The steppe communities of Pyatigorye on carbonate underdeveloped thin skeletalchernozems are distinguished by their species richness. In most of them, Stipa pulcherrima plays a high phytocenotic role,as well as other sod and dense bush grasses. Species of the “southern” steppe and Caucasian forbs, incl. petrophytes playsignificant role. The communities include rare species in the region: Astragalus brachycarpus, Dictamnus gymnostylis,Leopoldia tenuiflora, Paeonia tenuifolia, Iris pumila, I. aphylla, Orchis tridentata, Asphodeline taurica, Lamyra echinocephala,Linum tauricum, Onosma caucasica, Cerasus incana, Cephalaria coriacea. The studied representative communities areimportant for the conservation of the biological diversity of the region. Habitats of rare species are of scientific importanceand are of nature conservation interest.
Авторами представлены результаты обследования трех особо охраняемых природных территорий Ставропольского кр ая за период с 2009 по 2013 год. Уточнены места обитания 22 редких и исчезающих видов местной флоры. Обсуждаются вопросы современного состояния ценопопуляций: численность, жизненность, структура, экологические предпочтения, лимитирующие факторы указанных видов. С помощью технологий GPS определены их координаты и занимаемая территория. Особого внимания заслуживают редкие и исчезающие виды I и II категории.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.