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The study presents data on the species diversity of medicinal plants on the territory of the Municipality of Dospat (Western Rhodopes). 332 species were described, grouped in 75 families. The Asteraceae, Lamiaceae and Rosaceae families were represented by the largest species diversity, perennial herbaceous plants being predominant. There were 72 medicinal plant species of conservation significance, including endemic, rare and protected species. [ABSTRACT FROM AUTHOR]

The study presents data on the diversity of freshwater algal flora on the territory of the Bulgarka Nature Park. One hundred ninety-four species, belonging to 11 divisions were identified. The conservation value of the identified species was assessed. [ABSTRACT FROM AUTHOR]

Cyanoprokaryotes are widespread organisms, which dominate in different water basins. In the present study, we have investigated the diversity of this group and related physicochemical parameters in 35 standing water basins in Bulgaria. We found 29 cyanoprokaryotic species, which belong to 13 genera from the orders Synechococcales, Spirulinales and Oscillatoriales. The frequency quotient of each species was calculated. Information about the distribution of the identified species and typology of the water basins is also provided. [ABSTRACT FROM AUTHOR]

On the ground of "National methodological guidance for determination, management and monitoring of forests of high conservation significance" (2005), an observation was done about the condition and conservation values of the determine as a protected area plane-tree forest, in the land of Village Belastitsa, Minicipality Rhodopi. According to the twelve indicators, the status of P. orientalis population is good; as the low seed renovation capacity of the forest should be considered, because it would endanger its future condition and growth. [ABSTRACT FROM AUTHOR]

This article presents a summary of the research related to the taxonomic composition, algal blooms and toxic potential of representatives from Cyanoprokaryota (Cyanobacteria, Cyanophyta) in the coastal waters of the Bulgarian Black Sea area. Main strands of the algal research, including Cyanoprokaryota, are presented in a chronological order. The taxonomic composition of cyanoprokaryotic microorganisms, their importance as a part from the algal flora of the Bulgarian Black Sea coast and the main problems caused by this group organisms are discussed. This information could be used as a basis for future investigations related to the taxonomy, diversity, distribution and evaluation of the biological activity of cyanoprokaryotic species in the Black Sea and particularly in the Bulgarian coast area. [ABSTRACT FROM AUTHOR]