<abstract xmlns="http://www.w3.org/1999/xhtml"> Historical and current occurrence of obligate halophyte Artemisia santonicum subsp. patens was studied in Slovakia during 2001-2012. The species has been occurred in the Podunajska nižina Lowland and the Vychodoslovenska nižina Lowland; 35 localities were found in total. The data from the Zahorska nižina Lowland is erroneous. Recently the number of localities decreased markedly and the species was confirmed only in 17 sites. Most of them (16) is situated in the Podunajska nižina Lowland and a single one has been confirmed in the Vychodoslovenska nižina Lowland. Based on our data, Artemisia santonicum subsp. patens belongs to the endangered (EN A2ac+4c) plants of the Slovak flora according to IUCN categories and criteria, because 50 % of locations were destroyed and survival prognosis is unfavorable for the most recent populations.</abstract>

Institute of Botany, Slovak Academy of Sciences, Dubravska cesta 9, SK-845 23, Bratislava, Slovakia

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

ARTEMISIA SANTONICUM SUBSP. PATENS IN SLOVAKIA: THE SAD STORY OF OBLIGATE HALOPHYTE ON THE NORTHERN EDGE OF ITS DISTRIBUTION RANGE

<abstract xmlns="http://www.w3.org/1999/xhtml"> Ageratina adenophora is recorded for the first time in Italy (Campania region). Its naturalization status and ecology are discussed, also providing a morphological comparison with the related taxa (both occurring in Italy) A. ligustrina and Eupatorium cannabinum. Some remarks on potential threats for habitat and native flora are provided as well.</abstract>

AGERATINA ADENOPHORA (ASTERACEAE) NEW SPECIES TO THE ITALIAN ALIEN FLORA AND OBSERVATIONS ON ITS ENVIRONMENTAL THREATS

<abstract xmlns="http://www.w3.org/1999/xhtml"> In some regions of Slovakia, black alder forest vegetation has not been documented appropriately yet. This paper is the first vegetation study presenting the phytosociological data and measured environmental parameters from the western part of central Slovakia. The data set was classified by using a modified TWINSPAN algorithm, which allowed us to discern floristically and ecologically distinctive plant communities. They correspond to the associations Stellario nemorum-Alnetum glutinosae Lohmeyer 1957 (riparian alder vegetation on mesic to humid sites along small brooks) and Carici acutiformis-Alnetum glutinosae Scamoni 1935 (eutrophic black alder carr forests in the colline zone) with the variants of Ligustrum vulgare and Galium palustre. The community Carici elongatae-Alnetum glutinosae Schwickerath 1933 (mesotrophic to eutrophic alder carr vegetation growing on permanently waterlogged soils), documented only with two phytosociological relevés, was distinguished following expert knowledge. A floristic and ecological pattern of these associations is presented. The major compositional gradients were interpreted based on Ellenberg’s indicator values and the values of environmental variables recorded during the field sampling in the growing season 2011. The principal component analysis revealed the importance of soil moisture, light availability, portion of open water and soil surface for species composition variability at the association level, whereas the variants of Carici acutiformis-Alnetum glutinosae were sorted along the acidity gradient.</abstract>

Institute of Botany, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 23 Bratislava, Slovak Republic

State Nature Conservancy of Slovak Republic, Samova 3, SK-949 01 Nitra, Slovak Republic

Faculty of Education, Catholic University, Hrabovská cesta 1, SK-034 01 Ružomberok, Slovak Republic

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

Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, A. Hlinku 1 SK-94901 Nitra; Slovak Republic

BLACK ALDER DOMINATED FOREST VEGETATION IN THE WESTERN PART OF CENTRAL SLOVAKIA – SPECIES COMPOSITION AND ECOLOGY

<abstract xmlns="http://www.w3.org/1999/xhtml"> A list of corrected and typified grassland communities of the class Molinio-Arrhenatheretea Tx. 1937 occurring in Serbia was provided. The nomenclature rules of the International Code of Phytosociological Nomenclature were strictly followed. Syntaxonomic affiliation of communities to higher syntaxa was assessed according to the existing syntaxonomical schemes for Serbia, i.e. according to the position determined by the original source. Higher syntaxa followed the synsystem of the so-called “EuroVegChecklist”. Since syntaxonomic disagreements concerning a certain plant association’s position within the whole classification system have not been discussed, such a list should serve as the starting point for a further revision of the status of grassland communities in Serbia. So far, a total of 87 plant communities of the class Molinio-Arrhenatheretea were described for Serbia. The list provided here will enable more precise and more accurate mapping of vegetation in Serbia, as well as classification of these communities into the Habitat Directive which will enable the establishment of the Red list of Habitats for Serbia.</abstract>

University of Belgrade, Faculty of Agriculture, Nemanjina 6, Belgrade-Zemun, Serbia

Institute of Biology ZRC SAZU, Novi Trg 2, Ljubljana, Slovenia

University of Belgrade, Faculty of Biology, Institute of Botany and Botanical Garden, Takovska 43, Belgrade, Serbia

TYPIFICATI ON AND CORRECTION OF SYNTAXA FROM THE CLASS MOLINIO-ARRHENATHERETEA TX. 1937 IN SERBIA

<abstract xmlns="http://www.w3.org/1999/xhtml"> The Atlas of butterflies (Lepidoptera: Rhopalocera) of Slovenia (Verovnik et al. 2012) treats 179 butterfly species whose occurrence in Slovenia is confirmed, and 24 species for which only unconfirmed data exist. By the end of 2011, 212.936 distribution records by 167 contributing authors were collected for the Atlas. The Digital database of butterflies of the Jovan Hadži Institute of Biology of the Scientific Research Centre of the Slovenian Academy of Sciences and Arts was not considered in the process of collecting the data for the Atlas. This database contains 30.630 distribution records for butterfly species found in Slovenia from research projects undertaken by the Institute from 1995 to date. Given that this rich data source was not included in the Atlas, I here provide a supplement to the existing Atlas, reporting 1529 new records for 140 butterfly species. These updates provide new areas or range limits for 14 species, the presence of 71 species in areas the Atlas designated as “white spots”, new information on 3 species with very limited distribution in Slovenia, and additional corroboration for distribution of 27 species that the Atlas covered.</abstract>

SUPPLEMENTS TO THE ATLAS OF BUTTERFLIES (LEPIDOPTERA: RHOPALOCERA) OF SLOVENIA

<abstract xmlns="http://www.w3.org/1999/xhtml"> This paper provides phytosociological tables that describe scrub and forest communities with Alnus viridis in the Slovenian Alps. We described three new associations: Rhododendro hirsuti-Alnetum viridis (a green alder community on calcareous bedrock in the Eastern and Southeastern Alps), Huperzio selagi-Alnetum viridis (a green alder community in the silicate rocks under Mt. Komen in the eastern Savinja Alps) and Alno viridis- Sorbetum aucupariae (a successional stage of mountain ash and green alder on potential beech sites in the foothills of the southern Julian Alps; similar stages are known also elsewhere in the Alps), and presented additional three associations (Polysticho lonchitis-Fagetum, Rhodothamno-Laricetum and Rhododendro hirsuti-Pinetum mugo) whose stands comprise green alder.</abstract>

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

Biotechnical Faculty of the University in Ljubljana, Department of Forestry and Renewable Forest Resources, Večna pot 83, 1000 Ljubljana

Grobeljska cesta 6 b, 1234 Mengeš, Slovenia

FOREST AND SCRUB COMMUNITIES WITH GREEN ALDER (ALNUS VIRIDIS) IN SLOVENIA

AHEAD OF PRINT

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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. 