Phytodiversity of Eastern Europe

14-33

Authors: Broushkin Anatoly Valerievich, Gordenko Natalia Vladislavovna

At present, the Devonian flora of the Middle and Lower Volga region is poorly understood, mainly at the level of preliminary determinations. In this paper, published information on the flora of the region is analyzed, supplemented by data on available collection materials; brief characteristics of the most important plants are given. As far as one can judge from the scant data available, the Devonian flora of the Volga region was most similar to that of the central and north-eastern parts of the East European platform.

68-77

Authors: Gordenko Natalia Vladislavovna, Morov Vladimir Pavlovich, Varenov Dmitry Vladimirovich, Broushkin Anatoly Valerievich

The Jurassic flora of the Samara Volga region is authentically known from two localities (Samarskaya Luka and Chapaevsk), which are dated to the Bajocian - Bathonian. Plant remains in these localities are fragmentary, their taxonomic diversity is low. The flora of Samarskaya Luka is represented by a few finds, which do not provide us with complete information on the Middle Jurassic vegetation of the given region. The flora of the Chapaevsk locality is more informative and allows reconstructing woody landscape with predominance of conifers (Pityocladus, Mirovia) and Ginkgoales. Finds of mineralized wood with well-defined annual rings in the Chapaevsk locality point to seasonality of climate in this region. In the flora of the Samara Volga region, genera, indicating a warm climate, are not detected, but it may be caused by the peculiarities of taphonomy of the localities considered. This flora apparently was growing in the vicinity of the upper boundary of the ecotone between the European-Sinian and Siberian palaeophloristic areas.

97-138

Authors: Morov Vladimir Pavlovich

A review of basic chemical and microbiological processes occurring during the fossilization residues of plants in the geological environment of the platforms is provided. Examples are the material from locations of mostly the Permian and Paleocene flora in the territory of Samara province and neighbouring regions.

148-149

Authors: Vasjukov Vladimir Mikhajlovich, Payusova Tatiana Vladimirovna

Reported original data on distribution of new vascular plants in Kirov and Nizhni Novgorod regions.

151-154

Authors: Sukhorukov Alexander Petrovich, Davidenko Olga Nikolaevna, Vasjukov Vladimir Mikhajlovich

Koeleria spryginii ,Petrosimonia brachyphylla and Phlomoides desertorum are reported as new native vascular plants in Saratov Region, with comments on the diagnostics and conservation status.

162-170

Authors: Abramova Liudmila Andreevna, Volkova Polina Andreevna

In 2011-2015 we continued grid mapping of Udomlya district of Tver region. Five new for the region vascular plant species (Сirsium × hybridum, Digitalis purpurea, Eleutherococcus senticosus, Ligustrum vulgare , Malus sargentii) were revealed. Also we found 31 vascular plant species that are rare in Tver region (Carex tenuiflora , Cypripedium calceolus, Epipogium aphyllum, Nonea versicolor, Rosa × majorugosa, Sparganium angustifolium etc.).

173-176

Authors: Timukhin Il'ia Nikolaevich, Taniya Inga Vasil'evna, Yamalov Sergej Maratovich, Lebedeva Mariya Vladimirovna

Riza relic national park is unique natural complex in Republic of Abkhazia. Large number of endemic and rare species grow on its territory. There are 14 species, included in CITES list, among them. Data of new records of 10 rare species of herbaceous communities in the territory of Ritza relic national park are provided. For the first time for the Republic of Abkhazia the following species are noted: Alchemilla stellulata Juz., Crocus × suvoroveianus C. Koch, Genista albida Willd., Sedum pilosum M. Bieb., Veronica jacquinii Baumg. For the first time for the territory of park Vicia alpestris Steven. is noted.

186-192

Authors: Morov Vladimir Pavlovich, Senator Stepan Aleksandrovich

BIBLIOGRAPHY ON PALEOFLORA OF SAMARA REGION