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Rare species of vascular plants in the Boar of Bredinsky district (Chelya￾binsk region)

Authors: Merker V. V.

Дано краткое описание флоры и растительности особо охраняемой территории Брединского района Челябинской области – Боровской бор. Приведены сведения о находках на территории бора редких для флоры области видов, в том числе внесенных в региональную Красную книгу, дополняющие и уточняющие их распространение на Южном Урале. Подтверждена гербарным образцом находка нового для флоры области вида.

Материалы к флоре памятника природы "Дьяковский лес" (Саратовская область)

Authors: Vasyukov V. M., Senator S. A., Saksonov S. V., Zibzeev Е. G., Korolyuk А. Y.

Приводятся сведения о флористическом разнообразии памятника природы «Дьяковский лес» (Саратовская область) – островного массива сосновых и сосново-широколиственных лесов, расположенного на песчано-глинистых отложениях р. Еруслан в переходной полосе между сухими и опустыненными степями. Всего зарегистрировано 289 видов сосудистых растений, относящихся к 60 семействам и 204 родам. Впервые для Саратовской области приводятся Betula borysthenica Klokov и Stellaria subulata Boeber ex D.F.K. Schltdl.

On species identification of Delphinium (Ranunculaceae) herbarium specimens gathered in the Lower Volga region and the adjacent territories

Authors: Shilova I. V., Bogoslov A. V., Kritskaya T. A., Kashin A. S.

The article is concerned with the difficulties of species identification of the Delphinium (Ranunculaceae) herbarium specimens gathered in the Lower Volga region (Astrakhan, Volgograd and Saratov oblasts) and the adjacent regions (Penza, Samara, Tambov and Ulyanovsk oblasts and the Republic of Mordovia). The specimens from a number of herbaria (MW, LE, SARAT, SARBG, GMU, PVB) are subject to the research. It is revealed that their classification is problematic due to the absence of clear-cut classifying morphological parameters.

Analysis of the halophytic flora of the territories of spring areas of West Kazakhstan

Authors: Idrisova G. Z., Sergeeva I. V., Shevchenko E. N., Ponomareva A. L., Gulina E. V.

The article presents the results of the analysis of halophytic flora in the areas adjacent to the springs of Western Kazakhstan. The names of halophyte species for each spring tract in the regions of Western Kazakhstan are indicated. Cluster analysis of the number of plant species and halophytes in the flora in relation to hydrochemical parameters is presented. A correlation analysis of the number of plant species and halophytes in the flora in relation to the hydrochemical parameters of springs is presented.

The host-plant relationships of casebearer moths (Lepidoptera, Сoleophoridae) in family Polygonaceae on the territory of Volga-Ural Region

Authors: Anikin V. V.

Presented the taxa distribution of the family Polygonaceae species and the casebearer moths (Coleophoridae) on the basis of their host-plant relationships from the territory of the Volga-Ural region. In total were noted 8 species of casebearers with specialization on Polygonaceae. For buckwheat is noted the unique fauna of Coleophoridae which are mostly narrow oligophages, basically is based by tribe Augasmini (genus Augasma, Papyrosipha and Dumitrescumia). The casebearer moths from genus Ecebalia (tribe Casignetellini) for buckwheat − secondary.

Characteristics of reproductive features Hedysarum grandiflorum (Fabaceae) in southern of the Volga Uplands

Authors: Lavrentiev M. V.

In field seasons 2007–2014 studies have been conducted reproductive scope Hedysarum grandiflorum which grows in the southern of the Volga Upland within the administrative borders of the Saratov region. The features, variability and the plasticity of phytocoenotic external morphological characters of pollen, fruits and seeds of sweetvetch are studied. Potential and real seed productivity are identified. The optimal temperature of sprouting of seeds and the dependence of sprouting and energy of sprouting of seeds from the keeping period are detected.

Seed regeneration in some populations of Bulbocodium versicolor (Ker-Gawl.) Spreng. in Saratov region

Authors: Kulikova L. V., Petrova N. A., Shilova I. V., Serova L. A., Kashin A. S.

The article presents the results of the study of age structure and density of natural populations of Bulbocodium versicolor (Ker-Gawl.) Spreng. in the Saratov region. The populations of B. versicolor show internal density fluctuations, and differences in density may be 2–5-fold in some years. It was found that the majority of the studied populations of B. versicolor are either juvenile or in the transition from the juvenile stage to maturity and vice versa. Only one population is mature.

Features of seed reproduction of Fritillaria ruthenica Wikstr. in natural populations

Authors: Leonova A. A., Shilova I. V., Petrova N. A., Kostetsky O. V.

It was found that real seed productivity of Fritillaria ruthenica Wikstr. in natural populations of the Saratov region is up to 82%. Seed germination under laboratory conditions is rather high (93–100%), however, the damaging effect of phytophagous insects has a negative impact on seed regeneration in some populations.

The status of the population Adonis wolgensis in the Saratov region

Authors: Ermolaeva N. N., Shilova I. V., Petrova N. A., Kondrateva (Popova) A. O.

Studied two cenopopulation Adonis wolgensis Stev. ex DC. from Marx and Pug-achev districts of the Saratov region. The measured morphological characteristics of the individuals, defined: variability, spatial structure and ontogenetic range of populations, type of populations on the criterion of «Δ – ω».

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