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THAISZIA – JOURNAL OF BOTANY, Volume 23, 2013 – abstracts

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THAISZIA – JOURNAL OF BOTANY, Volume 23, 2013 – abstracts
vol. 23/1
vol. 23/2

Kruk J. & Sobisz Z. (2013): Occurrence and distribution of Senecio erucifolius L. (Asteraceae) in Poland. – Thaiszia – J. Bot. 23 (1): 1- 8. – ISSN 1210-0420.

Abstract: Three new stands of Senecio erucifolius L., situated close to each other, have been found in the Nida River Basin, in the area from where it was not reported before. Each of the stations numbered about a few dozen of individuals, and were located in scrub and wastelands surrounding the Owczary reserve, on a roadside close to fishponds south of Gadawa and in fields north of this village. Since distribution of Senecio erucifolius in Poland is not known, therefore, revision of herbarium materials of this species, as well as extensive search of the available literature data has been performed. The obtained data indicate that besides the Nida River Basin, this species was found mainly along the Middle Vistula River, in the Lublin Upland region, around Warsaw and in Lower Silesia. The species is presently a rare taxon in the scale of the country and deserves special protection.
Keywords: Senecio erucifolius, Asteraceae, distribution, Nida River Basin, Poland.
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Poganyová A. & Černušáková D. (2013): Assessment of the hardwood floodplain forests in the Rusovce and Čunovo area (Slovak Republic). – Thaiszia – J. Bot. 23 (1): 9-22. – ISSN 1210- 0420.

Abstract: This paper aims to present the current state of the floodplain forests on the right hand bank of the river Danube around the villages Rusovce and Čunovo. The stands belong to the association Fraxino pannonicaeUlmetum Soó in Aszód 1936 corr. Soó 1963. They represent fragments of hardwood floodplain forests with typical flora and fauna for such areas. They are important for water management, soil protection, environment protection and landscaping. This paper presents phytocoenology analysis combined with Ellenberg’s bio-indication approach and species diversity calculations.
Keywords: hardwood floodplain forests, phytocoenology, ecological account, Fraxino pannonicaeUlmetum, Rusovce, Čunovo.
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Vološčuk I. (2013): Uniqueness, Authenticity and Integrity of the Primeval Beech Forests of the Carpathians as World Heritage Sites. – Thaiszia – J. Bot. 23 (1): 23-30. – ISSN 1210-0420.

Abstract: The Primeval Forests are of a great importance because they act as natural laboratories and play an important role for science, education and biodiversity conservation. The paper deals with uniqueness, authenticity and integrity of the Primeval Beech Forests of the Carpathians, which in 2007 was inscribed on the World Heritage List. Virgin forersts differ within each phytogeographic zone, forming specific forest types with their characteristic species composition, spatial structure, dynamics and overall diversity (including genetic diversity) due to site conditions related to the position above sea level and topography, macroclimate and nutrient and water availability. A minimum area wherein all succession stages of a forest community can take place depend strongly on particular forest types and their potential disturbance regim.
Keywords: primeval beech forest, uniqueness, authenticity, integrity, scientific and conservation value.
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Kučera P., Bernátová D. & Kliment J. (2013): Notes to reconstruction of precultural vegetation of the Kremnické vrchy Mts (central Slovakia). – Thaiszia – J. Bot. 23 (1): 31-42. – ISSN 1210- 0420.

Abstract: This paper deals with the conclusions of RYBNÍČEK & RYBNÍČKOVÁ (2009) on natural climazonal forests of the northwestern foothills of the Kremnické vrchy Mts (central Slovakia). Pollen-analytical data indicate, according to these authors, the prevalence of natural Picea abies and Abies alba forests in that region. We present phytocoenological evidence (1) of the occurrence of remnants of native mixed stands with abundant Fagus sylvatica, and (2) of natural changes in tree species composition: secondary succession of Fagus sylvatica in the stands of Picea abies. In fact, a progressive replacement of Picea abies by Fagus sylvatica takes place in the forest canopy of the whole region as Fagus is a much more stable component of forest stands here than Picea. The mixed forests with abundant Fagus must have therefore occupied much larger areas than supposed according to the pollen and macroscopic analyses of spring fen sediments of the Kaltwasser.
Keywords: Fagus sylvatica, fir and fir-spruce forests, natural forest vegetation, secondary succesion.
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Langangen A. (2013): Charophytes collected on Rhodes and Kos, Greece in 2011. – Thaiszia – J. Bot. 23 (1): 43-46. – ISSN 1210- 0420.

Abstract: In this article three charophytes are reported from the two Dodecanesian islands Rhodes and Kos. The species are Lamprothamnium papulosum, Chara vulgaris and C. globularis.
Keywords: Lamprothamnium papulosum, Chara vulgaris, Chara globularis.
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Kadiri A.B., Utubor D. & Ogundipe O.T. (2013): Taxonomic relationships in Lagenaria Seringe (Cucurbitaceae) based on foliar epidermal morphology. – Thaiszia – J. Bot. 23 (1): 47-59. – ISSN 1210-0420.

Abstract: The genus possesses a suite of leaf epidermal characteristics which reflect the affinities among the species. The most generic constant features are anomocytic stomatal type and undulate anticlinal wall pattern on the abaxial surface. Whereas the species distinguishing features include paracytic stomata which were recorded only in L. breviflora, hypostomatic leaf distinguishes L. abyssinica and L. rufa from other species that are amphistomatic, uniform epidermal cell shape on both surfaces of the leaf differentiates L. guineensis and L. siceraria from other species that have dissimilar patterns on the surfaces. Other features are possession of globular head trichome in L. siceraria, impefect conical trichome in L. abyssinica and bicellular glandular conical trichome in L. sphaerica. Quantitatively, epidermal cells number generally varies from 28/mm² in L. vulgaris to 112/mm² in L. breviflora on the adaxial and abaxial surfaces respectively while stomatal number varies from 2-20/mm² and stomatal index is between 2.2 – 34.9 % on the adaxial surface and 8.2 – 20.8 % on the abaxial surface. Based on these features, two main groups and subgroups are proposed based on neighbour joining cluster derived from Euclidean similarity measure. Also, an indented dichotomous key is presented for species delimitation.
Keywords: leaf epidermis, light microscopy, taxonomy, Lagenaria, UPGMA dendrogram.
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Jehlík V., Májeková J. & Zaliberová M. (2013): New discovered adventive plants from eastern Slovakia. – Thaiszia – J. Bot. 23 (1): 61-66. – ISSN 1210-0420.

Abstract: In August 2012, a floristic research was carried out in the rail transshipment yards in eastern Slovakia. A special attention was paid to the adventive plants including invasive weeds. During the research, one new species – Euphorbia davidii – and three rare species – Geranium purpureum, G. sibiricum, and Grindelia squarrosa – were recorded for the Slovak flora. All the species were probably introduced through the Eastern migration route. Two of these invasive or potentially invasive species, E. davidii and G. squarrosa, are expected to be spread also in the future. New Slovak localities of all included species are presented in this paper; some data on the European distribution and identification are also provided.
Keywords: railway, transshipment yards, adventive plants, Eastern migration route.
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Kricsfalusy V.V. (2013): Mountain grasslands of high conservation value in the Eastern Carpathians: syntaxonomy, biodiversity, protection and management. – Thaiszia – J. Bot. 23 (1): 67–112. – ISSN 1210-0420.

Abstract: Mountain grasslands in the Eastern Carpathians within Ukraine are of high scientific and nature conservation value as well as of cultural and historical importance. They are home to a rich biodiversity, including many rare, endemic and relic plant species and plant communities, as well as those that are found at the periphery of their ranges. This paper analyses data from mountain grasslands that contain significant concentrations of biodiversity in the region. We propose syntaxonomical revision of our previously-published classification of grassland communities, which contains some corrections and improvements. This study provides an assessment of 14 grassland communities, including their syntaxonomy, characterization, distribution, habitat, ecology, red-listed plants, dynamic trends, protection status, and conservation value. Phytogeographical analysis demonstrates that most plant associations have different levels of endemism, from local and regional to supra-regional. This paper describes the patterns of distribution and the environmental affinity of mountain grassland communities, as well as the distribution and abundance of red-listed plant species. It analyses relationships between the size of the grassland patches, vegetation cover and species richness patterns for all taxonomic groups (vascular plants, bryophyte and lichen). This study assessesthe implications of the species richness patterns for the conservation status of grassland communities in the region. The major threats to mountain grasslands are considered to be changes in traditional land-use caused by overgrazing, abandonment, invasive species, afforestation, and climate change. Conservation management for maintaining the structure and diversity of mountain grasslands is suggested. Promoting development of the forest and pasture economy, and integrating it with objectives for nature conservation, are key to the sustainable development of this region.
Keywords: grasslands, biodiversity, threats, conservation, management, natural heritage, sustainability.
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Eliáš P. jun., Dítě D., Eliašová M. & Ďurišová Ľ. (2013): Distribution and origin of Aegilops species in Slovakia. – Thaiszia – J. Bot. 23 (2): 117-129. – ISSN 1210-0420.

Abstract: Historical and recent distribution of two Aegilops species was studied during 2002–2012 in Slovakia. Aegilops cylindrica, regarded as native species in Slovakia, was found at overall 16 localities in south-western and south-eastern Slovakia. More than half of those sites are considered to be adventive. Ten localities were confirmed during our field research including three natural localities on northern border of its original range (Kamenica nad Hronom) and seven adventive sites (Dunajská Streda, Sereď, Galanta, Trnovec nad Váhom, Chľaba, Dobrá, Čierna nad Tisou). Our results showed that the species belongs to rare termophilic archaeophytes of the Slovak flora; we confirmed its status in the Slovak Red List of Vascular Plants as vulnerable [VU B1a(i)b(iii)+2a(i)b(iii)]. Aegilops geniculata was reliably confirmed as a new species to the Slovak flora during revision of herbarium material. The species was found as casual alien in the surrounding of the Štúrovo railway station in 1960 and its occurrence was not confirmed recently. Distribution map of both species is given.
Keywords: Aegilops, distribution, origin, Slovakia.
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Dítě D. & Eliáš P. jun. (2013): New locality of Scirpus radicans in the Borská nížina Lowland (Western Slovakia) in the context of the species occurrence in Slovakia. – Thaiszia – J. Bot. 23 (2): 131- 136. – ISSN 1210-0420.

Abstract: Scirpus radicans is a very rare species in Slovakia. It was found only on ten localities especially in the Podunajská nížina and the Východoslovenská nížina lowlands. Whereas the number of recent locations is low and occurrence of S. radicans is often only temporary, we evaluate the species in category „endangered“ [EN B2a(ii)b(iii)c(iii,iv)] in Slovakia. As a pioneer species of disturbed habitats affected by fluctuating groundwater and surface water, it takes part in the succession of stagnant water banks of blind branches and water reservoirs. Here, the community of Scirpetum radicantis is developed under appropriate conditions. This speciespoor community comprises of a few wetland and aquatic species except the dominant Scirpus radicans. In this paper we publish a new site of the species in the Borská nížina Lowland, where the occurrence of the species was not recorded so far. We have found initial stage of Scirpetum radicantis association developed secondarily on the bank of a sand pit lake.
Keywords: aquatic and swamp vegetation, Cyperaceae, rare species, Scirpus radicans.
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Nachychko V. (2013): Thymus subsect. Maroccani Nachychko, nom. nov. – Thaiszia – J. Bot. 23 (2): 137-139. – ISSN 1210-0420.

Abstract: A new replacement name Thymus subsect. Maroccani Nachychko, nom. nov. for an illegitimate name Thymus subsect. Thymbropsis Jalas ex R. Morales is proposed. Its main synonymy and nomenclatural type are given.
Keywords: Thymus subsect. Thymbropsis, Lamiaceae, nomenclature.
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Májeková J., Zaliberová M. & Jehlík V. (2013): Extinct species Ceratocephala testiculata (Crantz) Besser rediscovered in Slovakia after 44 years. – Thaiszia – J. Bot. 23 (2): 141-145. – ISSN 1210- 0420.

Abstract: Ceratocephala testiculata (Crantz) Besser (Ranunculaceae) is classified as an extinct species in Slovakia (category EX). However, this species was recorded once again in Slovakia after more than 40 years (in April 2013). It was recorded at the Čierna nad Tisou railway station (eastern Slovakia), which is the new and the most eastern locality of its occurrence in the Slovak Republic. In this paper, the deletion of C. testiculata from the extinct species list is proposed; the new Slovak locality is described in detail; and data on its occurrence and distribution within Slovakia as well as Europe is also provided.
Keywords: Ceratocephala testiculata, new locality, railway station, eastern Slovakia.
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Dudáš M., Šuvada R., Mártonfiová L. & Mártonfi P. (2013): Differentiation of the taxa of the genus Taraxacum sect. Erythrosperma on the basis of morphological characters on achenes and outer bracts. – Thaiszia – J. Bot. 23 (2): 147-162. – ISSN 1210-0420.

Abstract: The genus Taraxacum sect. Erythrosperma is represented by one diploid species and several triploid microspecies in the territory of Slovakia. In comparison with the sect. Ruderalia it is not widespread and its occurrence is limited to areas with xerophilous and thermophilous vegetation. Besides some morphological characters on leaves particular microspecies within the section Erythrosperma differ by position and size of outer bracts as well as size and colour of achenes. Morphometric analyses with employment of multivariate statistic methods in the sample of 745 achenes and 447 outer bracts showed no substantial differences in the studied characters between diploid Taraxacum erythrospermum and triploids (T. cristatum, T. danubium, T. prunicolor). In the case of analysis of sole triploid microspecies, these microspecies can be distinguished from each other on the basis of characters on achenes and outer bracts quite well. These characters, when combined with other morphological characters, can play an important role in determination of particular taxa.
Keywords: Taraxacum sect. Erythrosperma, morphology, outer bracts, achene, taxonomy.
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