<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">The phytosociological research of the oak forest vegetation was carried out in the northern part of the Štiavnické vrchy Mts (Central Slovakia) using the standard Zürich-Montpellier approach. The data set consisting of 41 phytosociological relevés was obtained by the authors in two vegetation seasons in 2008 and 2009. The numerical classification and the ordination methods were applied to determine the main vegetation types and to explain the structure of the vegetation-environmental data matrix, respectively. Four associations within two classes were distinguished: <italic>Luzulo albidae-Quercetum petraeae</italic> Hilitzer 1932, typical for shallow, mineral-poor and acidic soils, <italic>Melico uniflorae-Quercetum petraeae</italic> Gergely 1962 occuring on mesic stands with skeletal and deeper soils, <italic>Poo nemoralis-Quercetum dalechampii</italic> Šomšák et Háberová 1979 developing on moderately canopyopened stands in the submontane belt, <italic>Sorbo torminalis-Quercetum</italic> Svoboda ex Blažková 1962 growing on moderately acidic substrates in drier regions. The major environmental gradients responsible for variation in forest species composition was associated with soil nutrient and soil reaction following the Ellenberg indicator values as well as the measured environmental variables (C/N-ratio and soil acidity). Special attention was given to the discussion on species composition and site ecology.</abstract>

Slovak Academy of Sciences, Institute of Forest Ecology, Štúrova 2, SK-960 01 Zvolen, Slovak Republic

Faculty of Natural Sciences, Matej Bel University, Tajovského 40, SK-974 01 Banská Bystrica, Slovak Republic

Oak forest vegetation in the northern part of the Štiavnické vrchy Mts (Central Slovakia)

<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">Historical and current occurrence of the obligate halophyte <italic>Pholiurus pannonicus</italic> was studied in Slovakia during the period 2003-2009. The species had been occurring in the Podunajská nížina Lowland and the Východoslovenská nížina Lowland; 30 localities were found in total. Recently the number of localities has decreased markedly and the species was confirmed only in the Podunajská nížina Lowland. We documented only seven localities during the study. Therefore, we confirmed that <italic>Pholiurus pannonicus</italic> belongs to the critically endangered plants of Slovak flora.</abstract>

Department of Botany, Slovak University of Agriculture, Tr. A. Hlinku 2, SK-949 76 Nitra, Slovakia

Institute of Botany, Slovak Academy of Sciences, Dúbravská cesta 14, SK-845 23, Bratislava, Slovakia

Institute of Botany and Zoology, Masaryk University, Kotlářská 2, CZ-61137 Brno, Czech Republic

Administration of the Slovenský kras National Park, Hámosiho 188, SK-049 51, Brzotín, Slovakia

Revision of Historical and Current Distribution of <italic>Pholiurus Pannonicus</italic> (Host.) Trin. in Slovakia

<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">The vegetation of mesic grasslands distributed in the central part of Western Bulgaria is studied. A significant number of 533 relevés were made following the Braun-Blanquet approach. Classification and ordination of the vegetation was performed. The vegetation is classified up to alliance level. The result of the classification are four groups which correspond to the alliances <italic>Arrhenatherion elatioris, Cynosurion cristati</italic> and <italic>Trifolion medii.</italic> Within <italic>Cynosurion</italic> alliance two well distinct subgroups are observed, differing in moisture of the substrate - provisionally called "wet" and "dry" <italic>Cynosurion.</italic> Ellenberg Indicator Values are used for assessment of ecology of the habitats. The pasture/mowing management of the studied vegetation types is commented.</abstract>

Bulgarian Academy of Sciences, Institute of Botany, Acad. Georgi Bonchev Street, Bl. 23, 1113 Sofia, Bulgaria

Czech Academy of Sciences, Institute of Botany, Poříčí 3b, CZ-60300 Brno, Czech Republic

Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, CZ-61137 Brno, Czech Republic

The Alliances <italic>Arrhenatherion, Cynosurion</italic> and <italic>Trifolion Medii</italic> in Western Bulgaria - Environmental Gradients and Ecological Limitations

<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">We describe localities and sites of <italic>Orobanche pancicii</italic>, a new species of the Slovenian flora. It was recorded in the subalpine belt (1500 to 2000 m a.s.l.) on forest edges, clearings and on stony grasslands in the Julian Alps and the eastern Karavanke mountains, on the hosts <italic>Knautia drymeia, K. longifolia</italic> and <italic>Scabiosa lucida</italic>.</abstract>

Scientific Research Centre of the Slovenian Academy of Sciences and Arts, Regional unit Tolmin, Institute of Biology, Brunov drevored 13, SI-5220 Tolmin

Scientific Research Centre of the Slovenian Academy of Sciences and Arts, Institute of Biology, Novi trg 2, SI-1000 Ljubljana

Rottlebener Straße, 67, D-06567 Bad Frankenhausen, Germany

<italic>Orobanche Pancicii</italic> Beck, a New Species to the Flora of Slovenia

<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">A syntaxonomical analysis of the dry grasslands (<italic>Festuco-Brometea</italic>) in Bosnek karst region, Mt Vitosha (SW Bulgaria) has been carried out. These grasslands are part of the intrazonal vegetation distributed within the belts of xerophilous oak and mesophilous beech forest in the south-western foothills of the mountain. The bedrock is carbonate, the soils are dry and shallow, climate - moderate continental. This vegetation grows mostly on steep slopes, with southern and south-western exposition. Apart from the typical for <italic>Festuco-Brometea</italic> calcicoles, the studied vegetation is characterized by many endemic (regional and local) species and at the same time includes a lot of Mediterranean species. As a result of the analysis, a new association, <italic>Bromo moesiacae-Stipetum epilosae</italic> ass. nova, has been established that belongs to the alliance <italic>Saturejon montanae</italic>. A comparison with related syntaxa from other karst mountains from SW Bulgaria and E Serbia is made, and some conclusions about the origin of the steppe vegetation in that region are drawn.</abstract>

54B Hristo Smirnenski Blvd, Sofia 1164, Bulgaria

Department of Ecology and Environmental Protection, Faculty of Biology, Sofia University "St. Kliment Ohridsky", 8 Dragan Tsankov Blvd., Sofia 1164, Bulgaria

<italic>Bromo Moesiacae-Stipetum Epilosae</italic> - a New Association from the Relict Mountain Steppe Vegetation in South-Western Bulgaria

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Hacquetia

 Hacquetia is a science journal bearing on Taxonomy, Floristics, Faunistic, Vegetation ecology, Biocoenology and Palynology. with a geographical focus on Southeastern Europe, although more general topics from all over the world are also invited. Why subscribe and read   Publication of quality research papers   Why submit   Fast, fair and constructive peer review (two or three competent reviewers),  Language corrections for non-native speakers,  Promotion of published works.   Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 

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Volume 9 (2010): Issue 2 (December 2010)

Oak forest vegetation in the northern part of the Štiavnické vrchy Mts (Central Slovakia)

Revision of Historical and Current Distribution of Pholiurus Pannonicus (Host.) Trin. in Slovakia

The Alliances Arrhenatherion, Cynosurion and Trifolion Medii in Western Bulgaria - Environmental Gradients and Ecological Limitations

Orobanche Pancicii Beck, a New Species to the Flora of Slovenia

Bromo Moesiacae-Stipetum Epilosae - a New Association from the Relict Mountain Steppe Vegetation in South-Western Bulgaria

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