Epiphytic moss component of different forest communities of Sochi region of the Black Sea coast (Russia) is characterized. Information about the distribution and frequency of 76 moss species, species richness and composition of moss complexes on the plots is analyzed.

Physiological and biochemical changes in Amblystegium serpens under different concentrations of lead and mercury are analyzed. Sublethal concentrations of these metals mainly cause quantitative changes in spectra of acid solubleproteins and of esterase multiple molecular forms. It is established that moss samples from places of different levels of pollution differed in amount of lead absorbed in gametophores. This fact can be explained by that plants more resistant to heavy metals may survive and be selected in polluted territories temperature is found to protect moss studied from the toxic impact of heavy metals. This suggests that proteins of thermal shock may play important role in normalization of esterase isozyme spectrum changed by lead and mercury impact.

In total 390 species were found in lowland and mountain tundra habitats in Murmansk Region. 242 species were observed in both mountain tundra belt and zonal lowland tundra. Species diversity and composition of ecological and georgaphic groups of mosses was compared between lowland vs. mountain tundra.

Annotated list of mosses from the eastern part of Karachaevo-Cherkesia includes 150 species, 13 of which are new to Karachaevo-Cherkesia.

We present data on mosses of the Komi Republic (Russia); the list includes 487 taxa on species / infraspecific level belonging to 151 genera and 51 families. We propose to add 54 moss taxa to the new edition of the Red Data Book of the Komi Republic.

An effect of lead acetate on growth and development of F. hygrometrica gametophyte and indexes of oxidative stressis studied. The toxic effect of lead ions is revealed on all stages of gametophyte development with most sensitivity during gametophore bud formation. Increasing of malonic dialdehyde and carbonylproteins content depending on the age of the moss gametophyte F. hygrometrica is established.

The list of bryophyte species from alpine shrubby formations in Gorgany Mts is based on my field records and literature data. In the mountain pine communities, 39 species were identified (28 mosses, 11 liverworts). A thick moss cover is often developed in pine communities. In communities with Alnus viridis, 35 species were found. Moss cover in alder vegetation is thinner and less developed.

Latitudinal zonation of the moss flora was studied in the Koryakskoye Upland, situated in the extreme North-East of Russia where boreal habitats meet arctic habitats. The arctic fraction consists of the arctic, metaarctic and arctalpine geographical elements. Considerable participation of arctic fraction in the moss flora of Koryakskoye upland reflects northern mountain character of flora and its transition from arctic to boreal.

Accumulation of high level of heavy metals ions (Pb²⁺, Cu²⁺ and Cd²⁺) from 1,0-10,0 μМ solutions is revealed for the moss D. aduncus. The analysis of absorbed ions is shown that ~87% Pb²⁺, ~68% Cu²⁺ and ~96% Cd²⁺ are localized inside a cell, ~13% of lead ions, ~32% of copper ions and ~4% cadmium ions being kept by components of cell’ wall. It is possible that the difference in ions’ distribution in moss gametophyte cells is decisive in determining the toxicity of cadmium to be higher than that of lead and copper causing absence of their desorbtion as well. Usage of D. aduncus for elaborating biological methods of diagnostic and purification of polluted ecotopes is justified.

On the territory of siх working oil wells of Boryslav, species composition and ecological preferences of mosses is analysed. Morpho-physiological variability of Ceratodon purpureus and its oil pollution tolerancefeatures is investigated experimentally.

Article elucidates human impact to of Belarus and specific traits of its synanthropic component. Distribution of species is studied on the base of cell mapping using 390 quadrates (100 km x 100 km). There are 98 apophytic bryophytes in Belarus (53 eventoapophytes and 45 gemiapohytes). Index of synantropization of Belarus bryoflora is 21,2% and it is similar to Ukraine. Some aspects of geography, ecology and distribution of bryoflora on the territory of Belarus and the whole Eastern Europe are discussed. Some centers of apophytic bryoflora are revealed in Eastern Europe.

The bryoflora and moss vegetation of national nature parks «Podolski Tovtry» (Khmelnytsky region), «Ichnyansky»(Сhernigiv region) and «Homolshanski forests» (Kharkiv region) are characterized. A classification scheme of moss vegetation of natural reserves studied in the region is given.

The article summarizes the results of bryophyte flora research in reserves of republican significance in Belarus. In total 261 bryophyte species were recorded there. For describing the ecological structure of the  bryophyte flora in general, the relation of bryophytes to humidity and trophic factors is considered. A geographical analysis based on zonal principle is carried out; rare species and species of conservational value are selected. The list of all species is given.

The liverworts flora of the Lapland State Nature Reserve includes 173 species that is 63% of the liverworts biodiversity of the European part of Russia, 66.5% of the North-West of Russia, and 88% of the Murmansk Region. The species diversity of partial liverworts floras of the Lapland State Nature Reserve Mountains varies but slightly: 139 species were found in the Salnye Tundry Mts, 124 species in the Monche-tundra Mts, 133 species in the Chuna-tundra Mts, and 112 species in the Nyavka-tundra. The high diversity observed in the studied sub-regions can be explained by diverse geological, geomorfological and climatic conditions of the area, as well as by intensive research; fairly dense and uniform coverage of liverworts sampling in the area.

Data about a new for flora of Ukraine moss species – Syntrichia laevipila Brid. is reported. Syntrichia laevipila was found within association Syntrichietum laevipilae Ochsn. 1928 on bark of old-growth trees in arboretum of Nikita Botanical Garden and in relict juniper-oak grove of “Mys Martjan” reservation (South Crimea, Ukraine).