Distribution of Buxbaumia viridis (Moug. ex Lam. et DC.) Brid. ex Moug. et Nestl. (Bryophyta) in Montenegro

The present paper is a contribution to the knowledge of the distribution of the moss species Buxbaumia viridis in Montenegro. The records are from 14 known sites at elevations over 1300 m a.s.l. in the northern and north-eastern parts of the country. Population size is remarkable in Durmitor National Park at Crno jezero lake, where sporophytes can be found on ca 50 tree trunks

An eco-physiological and biotechnological approach to conservation of the world-wide rare and endangered aquatic liverwort Riella helicophylla (Bory et Mont.) Mont.

The rare aquatic liverwort Riella helicophylla (Bory et Mont.) Mont., inhabitant of temporary shallow ponds around the Mediterranean basin, is considered threatened throughout its distribution range. In addition, little is known of its biology and ecology or of its role in such an important ecosystem where envi- ronmental conditions vary yearly in unpredictable ways. In these variable habitats, due to the seasonal fluc- tuation of water levels, there is no guarantee of yearly spore input into the spore bank. Spore germination rate and the effects of different culture media in an axenic culture establishment, as well as propagation proce- dures of R. helicophylla, were tested. New insights into the ecology and biology of R. helicophylla are given. Spore dormancy is documented, and the protocols for the in vitro culture establishment, propagation and ac- climatization of this liverwort are developed. Dry storage at 20 ± 2 °C for about three months broke the dor- mancy of spores, which subsequently germinated in a high percentage (over 90%). A two phase (solid and liquid) culture media system was developed for the purpose of achieving fully developed gametophytes. The liquid phase contained electrolytes simulating brackish water

New national and regional bryophyte records, 74

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GrassPlot - a database of multi-scale plant diversity in Palaearctic grasslands

GrassPlot is a collaborative vegetation-plot database organised by the Eurasian Dry Grassland Group (EDGG) and listed in the Global Index of Vegetation-Plot Databases (GIVD ID EU-00-003). GrassPlot collects plot records (releves) from grasslands and other open habitats of the Palaearctic biogeographic realm. It focuses on precisely delimited plots of eight standard grain sizes (0.0001; 0.001;... 1,000 m(2)) and on nested-plot series with at least four different grain sizes. The usage of GrassPlot is regulated through Bylaws that intend to balance the interests of data contributors and data users. The current version (v. 1.00) contains data for approximately 170,000 plots of different sizes and 2,800 nested-plot series. The key components are richness data and metadata. However, most included datasets also encompass compositional data. About 14,000 plots have near-complete records of terricolous bryophytes and lichens in addition to vascular plants. At present, GrassPlot contains data from 36 countries throughout the Palaearctic, spread across elevational gradients and major grassland types. GrassPlot with its multi-scale and multi-taxon focus complements the larger international vegetationplot databases, such as the European Vegetation Archive (EVA) and the global database " sPlot". Its main aim is to facilitate studies on the scale-and taxon-dependency of biodiversity patterns and drivers along macroecological gradients. GrassPlot is a dynamic database and will expand through new data collection coordinated by the elected Governing Board. We invite researchers with suitable data to join GrassPlot. Researchers with project ideas addressable with GrassPlot data are welcome to submit proposals to the Governing Board

Axenically culturing the bryophytes: a case study of the moss Herzogiella seligeri (Brid.) Z. Iwats. (Plagiotheciaceae)

A moss genus Herzogiella, from the pleurocarpous family Plagiotheciaceae contains only seven species world wide. It occurs in North, Central and South America, Europe and Asia. In Europe, only three species occurred, namely H. seligeri, H. striatella and H. turfacea of which, the last one is threatened. With aim to develop the methodology for protection, conservation and active propagation of H. turfacea, more commonly distributed counterpart, H. seligeri, were taken from the National Park Fruška Gora and axenically culture were established. The study gives overview into the problems of sterilization, in vitro establishing, development, propagation and biology of species, as well as indices applicable to threatened counterpart