New liverwort records from Мurmansk Province. 3.-Новые находки печеночников в Мурманской области. 3. E.A. Borovichev-Е.А. Боровичев New for the province-Новые для области Asterella lindbergiana (Corda ex Nees) Arnell-Lovozero Area, Voron'i Tundry Mts., near the bottom of the Leschaja Mt., stream flowing into the Lagernoe Lake (68°29'49''N-35°36' 07''E), 298 m alt., SW-faced slope of calcareous rock, under the overhanging stone, on fine soil, in compact patches, Borovichev #БЕ16-11-11; 16-14-11 [Боровичев] {KPABG}.

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Поступила в редакцию 16.04.16 г. О распространении Caulinia minor (AlL.) Coss. et J. N. E. Germ (Hydrocaritaceae, Liliopsida) на территории Нижегородской области.-Бирюкова О. В., Шестакова А. А., Беляков Е. А., Гарин Э. В.-Приведены результаты анализа распространения Caulinia minor на территории Нижегородской области с учётом литературных источников, материалов гербариев и собственных полевых исследований. Выявлена приуроченность вида к водоёмам с хорошо прогреваемыми мелководьями и минерализованными водами. Обосновано внесение вида в региональную Красную книгу ввиду нахождения на границе ареала. Предложено повысить категорию редкости вида в регионе, даны рекомендации по его охране. Ключевые слова: Caulinia minor, Нижегородская область, редкий вид, Красная книга. On the distribution of Caulinia minor (All.) Coss. et Germ. (Hydrocaritaceae, Liliopsida) on the territory of the Nizhny Novgorod region.-Birykova O. V., Schestakova A. A., Belyakov E. A., and Garin E. V.-The results of our analysis of the Caulinia minor distribution in the Nizhny Novgorod region on the basis of published sources, herbaria samples and the authors' original data are presented. The species preferring water bodies with well-warmed shoals and high mineralization levels was revealed. The species entering the Red Data Book is justified due to its location on the border of the habitat. It is proposed to promote the rarity status of the species in the region; recommendations on its conservation are given.

The purpose of our study is to consider the possibilities of using different approaches to recognize the significance of the territory for the biodiversity conservation. The Ichalkovsky nature reserve (zakaznik) with an area of 1,442 hectares in the Nizhny Novgorod region was selected for analysis as a botanical and geological object unique for the Russian Plain. The criterion of various rare wildlife species records was used as a leading approach. Analysis of published materials and field research in 2020 allowed us to identify in the studied territory the habitat of 88 wildlife species listed in the Red Data Books of Russia and the Nizhny Novgorod Region. They are very different concerning their taxonomy and biology. This criterion use shows the extremely high conservation value of the Ichalkovsky reserve. The territory under consideration is characterized by high biological diversity and a high degree of biota remained, as well as its weak human disturbance. It is shown that, in accordance with the approaches of international nature conservation programs, the Ichalkovsky reserve has the status of a territory of special nature conservation significance within the Emerald Network of Russia, as well as an Important Bird Area. This territory is the core of the environmental framework of European Russia and meets the criteria for identifying several categories of high conservation value forests. The proposed ways have shown high efficiency. Ichalkovsky reserve is very important to conserve the biodiversity, including at the international level. This natural area should have legal protection adequate to its nature conservation value. Such protection can be provided by the status of a cluster of a national park.

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This study aims at the analysis of the current status of the territorial protection of rare orchid species in the Nizhny Novgorod region to solve the problems of further maintaining biodiversity in the region and developing the system of protected areas. The total area of 411 existing and 147 projected protected areas in the region together with buffer zones is 8350 km2 (11% of the region area). For the analysis, we used data from the Herbarium of the Lobachevsky State University of Nizhny Novgorod (NNSU), scientific publications and data obtained by the authors during surveys in 1986–2019. To determine the level of territorial protection we used the frequency of occurrence of rare orchid species in the protected areas estimated in points. It was calculated at the basis on the share of the number of discovered locations of the species per the total number of findings of that species in the region. Also we took into consideration numbers and areas of protected areas where the orchid species are protected, their status and category (federal or regional, established or projected), as well as actual records of orchids on these areas over the past 20 years. A total of 19 rare orchid species are protected at 65 established and 11 projected protected areas of the Nizhny Novgorod region. Ten orchid species are recognized as well provided with territorial protection (52.6%). The level of territorial protection of 4 species is recognized as satisfactory. At the same time 4 species of orchids are poorly protected. The threat of extinction of these orchid species in the region is significant. Three species of orchids, which are probably extinct in the Nizhny Novgorod region, are absent in the protected areas. The number of rare species growing on existing protected areas ranges from 1 to 11 and depends on different criteria (level of the flora research, diversity of habitats) and has a weak positive correlation with the area (correlation coefficient – 0.46). We predict a significant increase in the number of finds of rare orchids in protected areas with a detailed flora inventory conducting. The system of protected areas established in the region as a whole provides a satisfactory level of protection for rare orchids. Nevertheless, the territorial protection of these plants needs to be improved.

The information about the habitats of the rare relict species Chara strigosa A. Braun is updated. The data on the state of the population and the phytocenotic role of the species in the composition of the vegetation coverof lakes are presented.