Phytodiversity of Eastern Europe

353-396

Authors: Senator S.A., Vasjukov V.M.

For the first time, a list of alien plants registered on the territory of the Middle Volga Region (within the boundaries of Samara and Ulyanovsk Regions) is published. The alien flora of the Middle Volga Region is represented by 461 species of vascular plants belonging to 275 genera and 77 families (23.1% of the total flora). For each species information is provided about the time of occurrence in the flora (archaeophyte, neophyte), mode of introduction (xenophyte, ergasiophygophyte), invasive status (ephemerophyte, colonophyte, epecophyte, agriophyte), life form, geographical element, frequency of occurrence, range of occupied habitats, as well as the date of first mention. The predominance of neophytes (394 species, 85.5%) over archaeophytes (67 species, 14.5%) was found in the alien flora of the Middle Volga region. For the first time, information is provided on the findings of such species as Cleome spinosa, Echinacea purpurea, Grindelia squarrosa, Jovibarba globifera, Phaseolus vulgaris, and Rudbeckia laciniata. All listed species are accompanied by comments. Among alien plants is dominated by epecophytes (149 species, 32.3%) and ephemerophytes (148 species, 32.1%), 142 species are colonophytes (30.8%) and 22 (4.8%) are agriophytes. 21 species belong to the disappeared ones, they are listed in the general list, but are not included in the analysis. Currently, there is a high rate of adventization of the regional flora – 161 species (35.0% of their total number) recorded in the last 20 years. According to the modes of introduction, alien species are distributed almost equally – 227 xenophytes (49.2%) and 234 ergasiophygophytes (50.8%). The most common alien species in the region have been identified. The results of distribution of alien species are presented by habitat types.

402-413

Authors: Vasjukov V.M., Novikova L.A., Gorbushina T.V., Ivanova A.V., Lysenko T.M.

As a result of botanical research in 2019 were found 620 species of vascular plants in the Bekovo and Tamala Districts of the Penza Region, including 5 species of the Red Book of the Russian Federation (2008) – Fritillaria ruthenica Wikstr., Iris aphylla L., Stipa dasyphylla (Lindem.) Czern. ex Trautv., S. pennata L. s.str., S. zalesskyi Wilensky ex Grossh. and 32 species of the Red Book of Penza Region (2013). The results of the floristic survey of 11 geographical points are presented.

253–275

Authors: Levashov A.N., Zhukova N.N., Romanovskiy A.Yu., Komarova A.S., Philippov D.A.

The work was carried out in the southern part of the Vaga River basin (within the Verkhovazhskiy, Syamzhenskiy and Totemskiy districts of the Vologda Region) as a part of the studies for Red Data Book of the Vologda Region. Results obtained are important for clarifying the chorological and phytocenotic regional preferences of a number of species of vascular plants and for identifying modern "centers" of rare and protected species, giving an idea of the environmental value of this basin and its parts. As a result of field studies in 2015–2019 a total of 550 new localities of 67 protected and 52 rare species of vascular plants were recorded, including 2 species (4 localities) with the 1/CR status, 1 (1) with 1/EN, 3 (7) with 2/EN, 8 (30) with 2/VU, 22 (86) with 3/NT, 28 (126) with 3/LC, 3 (5) with 4/DD, and 52 (291) species with a “biological control required” status. Within the boundaries of the present protected areas, only 17 protected and rare plant species were found (14.3% of the total number within the Vaga River basin). The most important findings include Saxifraga hirculus L., Scorzonera glabra Rupr. (1/CR); Calypso bulbosa (L.) Oakes (1/EN); Eremogone saxatilis (L.) Ikonn., Poa alpina L., Potamogeton crispus L. (2/EN), Epipactis atrorubens (Hoffm. ex Bernh.) Bess., Listera cordata (L.) R. Br., Poa remota Forsell. (2/VU); Festuca rupicola Heuff. (biological control required), as well as several non-status native (Helictotrichon pubescens (Huds.) Pilger, Nonea pulla DC.) and adventive (Euphorbia helioscopia L., Onobrychis viciifolia Scop, Silaum silaus (L.) Schinz ey Thell.) species, new or previously reported for the Vologda Region.

290–294

Authors: Glazunov V.A., Nikolaenko S.A.

The article provides information on the new locations of two species of heterogeneous lycopods – Isoetes lacustris and I. echinospora in the Khanty-Mansi Autonomous Okrug – Ugra. I. lacustris is a new species for the Okrug. Both species found together in 4 lakes in the southern part of the Khanty-Mansi District (Sogom village), in the middle taiga subzone. I. echinospora is also found in two lakes in the north-eastern part of the Beloyarsky District, in the territory of the Noomto Natural Park

197–214

Authors: Levashov A.N., Romanovskiy A.Yu., Philippov D.A.

The work summarizes data on the distribution, biological, ecological, and population characteristics and protection of the regionally rare and protected the Bryopsida moss, Neckera pennata Hedw. in the Vologda Region. To date, the species has been recorded in 92 localities in the Region, in all the administrative districts of the Region and in 38 squares of the Atlas Florae Europaeae. A total of 48 new localities from 18 administrative districts are listed for this species, at that Neckera pennata is reported for the first time for 12 districts (Babushkinskiy, Belozerskiy, Velikoustyugskiy, Verkhovazhskiy, Kichmengsko-Gorodetskiy, Mezhdurechenskiy, Nyuksenskiy, Sokolskiy, Ust’-Kubinskiy, Ustyuzhen-skiy, Kharovskiy, Chagodoshchenskiy districts). In the Vologda Region, the species occur in old mesophilic aspen and aspen-spruce forests. In addition to Populus tremula L., which is the main substrate for the moss, Neckera pennata was rarely observed on 10 more species of woody plants (Larix sibirica Ledeb., Picea abies (L.) Karst., Betula pendula Roth, Populus alba L., P. balsaminifera L., Sorbus aucuparia L., Salix caprea L., Tilia cordata Mill., Ulmus glabra Huds., U. laevis Pall.). Currently, the species is included in the Red Data Book of the Vologda Region with a 3/LC status and is protected in the region in 15 protected areas, including two federal, 12 regional and one local protected area. The main threats to the existence of the species are associated with the removal or fragmentation of old forests due to logging.

222–229

Authors: Arkhipova E.A., Volkov Yu.V., Nevryuev A.M., Stepanov M.V., Shchukina A.V.

The article presents the results of the use of cluster analysis to characterize 15 coenopopulations of Iris pumila L. in Saratov region, using generative traits (the color of the flowers and the barbule, the diameter of the flower, the height of the footstalk with the flowers and the footstalk to the ovarium, the length of the perianth tube, bract, the length and width of limb of inner perianth lobe, the length and width of inner perianth lobe, the length and width of external perianth lobe) and the physical-geographical conditions (height of the surface, slope exposure, distance from the Volga River) in which the populations are located. Cluster analysis was carried out separately on the basis of only generative traits and separately taking into account physical and geographical conditions. For the studied coenopopulations of I. pumila, a relationship between the physical and geographical conditions in which they are located, and the values of the generative organs of plants of this species have not been established.

30-69

Authors: Atrasheuski O.A.

429 higher vascular plants from 74 families and 269 genera were marked at the territory of the Yukhnovskiy biological sanctuary during the field studies in 2018. Based on research, there was prepared a checklist of flora in which all the species were given their bioecological and geographical characteristics. Also information on distribution and occurrence degree was provided briefly. There were given taxonomic, ecological and geographical analyses of flora. Synanthropic fraction was defined and described. There were marked the places of growth of 12 species included in the Red List of Belarus: Arnica montana, Campanula latifolia, Cephalanthera longifolia, Huperzia selago, Laserpitium latifolium, Lathyrus laevigatus, L. linifolius, Lilium martagon, Prunella grandiflora, Pulmonaria angustifolia, Pulsatilla patens, Thesium ebracteatum. Also there were marked 13 species from the list of preventive protection: Aquilegia vulgaris, Anthericum ramosum, Campanula persicifolia, Daphne mezereum, Epipactis helleborine Goodyera repens, Hierochloe australis, Hepatica nobilis, Matteuccia struthiopteris, Phyteuma spicatum, Platanthera bifolia, Primula veris, Thalictrum aquilegifolium, as well as a number of rare plants for Minsk oblast and Belarus. Some invasive species were marked. Species diversity increase was registered due to cultivated alien species run wild.

95-97

Authors: Mayorov S.R., Borisova E.A.

The information on the finding of Dactyloctenium radulans in Ivanovo is given – a new alien species for the flora of Russia.

107-113

Authors: Pismarkina E.V., Bystrushkin A.G.

The article provides information on the findings of 13 alien vascular plant species and 1 subspecies (from 14 genera and 7 families) made in the Yamalo-Nenets autonomous region (Russian Federation) in 2013–2017. Among the species found are new to the regional flora Cucurbita pepo and, possibly, Silene flos-cuculi, and rarely found in the region of Arctium tomentosum, Carduus crispus, Chenopodium glaucum, Convolvulus arvensis, Descurainia sophia, Geum aleppicum, Lactuca tatarica, Lotus corniculatus, Raphanus rhaphanistrum, Sisymbrium loeselii, Tussilago farfara.

119-126

Authors: Ilina V.N.

Ontogenetic structure of natural populations of rare plant species is the main characteristic in assessing their current state and forecasting further development. In the Middle Volga basin, the ontogenetic structure of Hedysarum razoumovianum Fisch et Helm (Fabaceae) populations was studied. The species is native to the northwestern border of the range and is included in the Red Books of the Russian Federation and Samara Region. In the course of the work, population-ontogenetic research techniques were used. The assessment of the types of populations carried out by the criterion of "delta-omega". The basic ontogenetic spectrum of coenopopulations centered with the predominance of mature generative individuals. Most coenopopulations are mature normal. Average demographic indices of cenopopulations Hedysarum razoumovianum : substitution index – 0.30; recovery index – 0.31; aging index – 0.04. The average age (Δ) is 0.44, the average efficiency (ω) is 0.72. The change in the demographic parameters of Hedysarum razoumovianum cenopopulations on the Middle Volga is influenced by the degree of anthropogenic load. It was revealed that a strong anthropogenic load, like its complete absence, leads to a gradual aging of populations.