As a result of bryoflora inventory of mine dumps in Chervonograd industrial coal mining region 38 species of mosses belonging to two orders of Marchantiophyta (3 families, 3 genera, 3 species) and Bryophyta (15 families, 24 genera, 35 species) were found. For the investigated territory 7 rare species of mosses have been determined. Firstly, Campylopus introflexus and Pohlia sphagnicola have been discovered for bryoflora of Ukraine on the dumps of mine "Nadija" (Sosnivka of Lviv region). The results of complex analysis of devastated territories bryoflora and characteristics of its structure have been provided.
The effect of heavy metals Zn 2+ , Pb 2+ and Ni 2+ on free proline content and superoxide dismutase activity in mosses Hylocomium splendens, Pleurozium schreberi and Rhytidiadelphus squarrosus. The effect of Cu 2+ and Cr 6+ , low and high temperatures and osmotic stress in relation to proline content and catalase activity were estimated in liverwort Marсhantia polymorpha. It was found that proline accumulation was more pronounced under high temperatures and osmotic stress than in the presence of heavy metals. It is concluded that in tolerant species stress conditions may enhance protective processes such as accumulation of free proline and increase in the activities of detoxifying enzymes superoxide dismutase and catalase.
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