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THAISZIA – JOURNAL OF BOTANY, Volume 18, 2008 – abstracts

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vol. 18, 2008 – Abstracts
vol. 17/1-2

ÖZDEMIR C., ALTAN Y., AKTAŞ K. & BARAN P. (2008): Morphological and anatomical investigations on endemic Allium armenum BOISS. & KOTSCHY and  Allium djimilense BOISS. EX REGEL (Alliaceae) species of East Anatolia. – Thaiszia – J. Bot. 18: 1-8.

Abstract: In this study, Allium armenum BOISS. & KOTSCHY and Allium djimilense BOISS. EX REGEL both endemic of Turkey, were compared morphologically and anatomically. The results showed that the investigated species had typical morphological characters of sect. Codonoprasum Reichenb. and also that they could be distinguished from each other not only by their morphological but anatomical characters as well.
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DÍTĚ D., ELIÁŠ P. JUN. & SÁDOVSKÝ M. (2008): Camphorosmetum annuae RAPAICS ex SOÓ 1933 – vanishing plant community of saline habitats in Slovakia. – Thaiszia – J. Bot. 18: 9-20.

Abstract: Association Camphorosmetum annuae was reported in the second half of 20th century from relatively large areas of south-western Slovakia. The community retreats in Slovakia nowadays due to conversion of saline soils to arable land. This work deals with recent distribution and condition of the community in Slovakia. Phytosociological relevés were sampled using the adapted Braun-Blanquet scale and classified by TWINSPAN software. The results showed that the community has still occurred only on three sites near the villages of Veľké Kosihy, Iža and Kamenín, covering total area not larger than 70 m2. However, typical Camphorosmetum annuae was found only in the Kamenínske slanisko Nature Reserve near the village of Kamenín where covered total area only 0.01-1 m2. All other recent localities with occurrence of Camphorosma annua represent only secondary and disturbed habitats on more or less degraded saline soils. The vegetation cover on these localities is usually close to Festucion pseudovinae communities. The results documented that Camphorosmetum annuae is fast vanishing plant association in Slovakia and its survival and conservation is probably impossible without human impact.
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KRICSFALUSY V. & MILLER G. (2008): Invasion and distribution of Cynanchum rossicum (Asclepiadaceae) in the Toronto region, Canada, with remarks on its taxonomy. – Thaiszia – J. Bot. 18: 21-36.

Abstract: The present study gives an overview of the nomenclature for Cynanchum rossicum (KLEOPOW) BORHIDI that is being used in botanical literature. The distribution pattern of this invasive alien species in northeastern United States and southeastern Canada is described on the base of herbarium materials, field records and literature data. The area covered by the introduced range of C. rossicum is estimated to be 3 times the coverage of its original range which indicates a very high rate of spread across North America. Over the 100-year history (1902-2005) of invasion of C. rossicum in the Toronto region, Canada the total number of herbarium specimens is 65, with the number of infested vegetation communities being 1936, yielding a total of 2001 records. The dynamics of C. rossicum spontaneous invasion in the Toronto region were analyzed by multiple regression analysis. The obtained data indicate that number of species localities and mapping grids per year gradually increased during the four historical periods (1902-1999) and shows exponential growth in last fifth period (2000-2005). During the recent phase of invasion C. rossicum occurred in a wide range of habitats, and it invaded many natural and semi-natural sites.
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SUPUKA J., FERIANCOVÁ Ľ. & BIHUŇOVÁ M. (2008): Leaf impact trends of silver birch (Betula pendula Roth.) by allochtonous elements at Nitra town urban vegetation. – Thaiszia – J. Bot. 18: 37-49.

Abstract: The town settlements have different load level by emmissions originated mostly from industry, transport and heating system. Their environmental and climate conditions are more or less changed that effect to human healthy, growth, physiology and healthy stage of woody plants at the city public vegetation areas. Highest stress load is occurred along with thoroughfares at tree alley.
Total content of chosen allochtonous elements and anionic components in leaf of silver birch (Betula pendula Roth.) has been analysed at urban vegetation area of Nitra town grown along with thoroughfare. To those elements belongs Ca, Mg, K, Na, Fe, Zn, Cu, Pb, Mn and H2PO4-, Cl-, NO3-, (SO4)2- that were analysed from leaf samples collected in 1989, 1999 and 2005 years. Investigated leaf element content was compared with leaf one collected at relatively clean locality Arboretum Mlyňany SAV, 30 km NE from Nitra in distance. The cumulated leaf elements has been assessed to town air load by emmissions. The significantly increased element contents were analysed from birch leaf grown at Nitra as are: K, Fe, Zn, Cu, Pb, Mn, Cl-, NO3-, (SO4)2-. Leaf element contents are comparable higher at Nitra locality than in Arboretum Mlyňany SAV one. Many analysed elements from Nitra locality are over the allowed natural growth limits.
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ŠOLTÉS R. (2008): Philonotis marchica (Bryophyta), new record in Slovakia (exhausted fen Krivý kút, Poprad Basin). – Thaiszia – J. Bot. 18: 51-54.

Abstract: During the peatlands mapping in Slovakia, Philonotis marchica, rare species for Slovakia bryoflora, was found. This species is widespread but scattered, evidently bears suboceanic features. Its habitat and phytocoelogical conditions are briefly described.
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ŠOLTÉS R. (2008): Racomitrium elongatum FRISVOLL, a neglected Slovakian bryophyte. – Thaiszia – J. Bot. 18: 59-64.

Abstract: Chorology, ecology and phytocoenology of Racomitrium elongatum Frisvoll is dealt with in the paper. The taxon is neglected in Slovakia and appears to be rather common in The Tatra Mts. The distribution map of the species in the Tatra Mts is presented
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MIKOLÁŠ V. (2008): Sorbus hugh-mcallisteri nom. nov. for Sorbus apiculata McAllister 2005, nom. illeg. – Thaiszia – J. Bot. 18: 65-67.

Abstract: Sorbus apiculata MCALLISTER 2005 is a later homonym of Sorbus apiculata (KOVANDA) MIKOLÁŠ. The new name Sorbus hugh-mcallisteri MIKOLÁŠ is applied for the species. The species belongs to the section Multijugae (T.T.YU) MCALL. It is known from NW Yunnan, China. Sorbus apiculata (KOVANDA) MIKOLÁŠ 2004 is a member of Sorbus danubialis agg. (Sorbus subg. Aria) with the occurrence in Bohemia, Czech Republic
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MELEGHIK O., SOLOMAKHA V. & SOLOMAKHA T. (2008): Structure and adjective vegetations of grass-plots in Kyiv. – Thaiszia – J. Bot. 18: 69-74.

Abstract: The paper present of ecological floristic classification of Kyiv grass-plots.  Ecological floristic classification of given  5 classes (Molinio-Arrhenatheretea, Agropyretea repentis, Plantaginetea majoris, Chenopodietea and Artemisietea vulgaris), 8 alliances, 11 unions, 27 associations and 33 variants.
Floristic structure and qualitative adjectives of Kyiv grass-plots were investigated. Common evaluations of qualitative adjectives of Kyiv grass-plots coverings were cited. There are 63 alochtonic species among the ones found in the grass-plots on the territory of Kyiv. They include 35 species imported before the XVI century (archeophytes), and 28 brought later.
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KNEŽEVIĆ A., STOJANOVIĆ S., NIKOLIĆ LJ., DŽIGURSKI D. & LJEVNAIĆ B. (2008): Ecological analysis of the flora of saline sites in the northern part of Banat region in Vojvodina Province (Serbia). – Thaiszia – J. Bot. 18: 75-92.

Abstract: A long-term floristic study has determined the presence of 410 plant taxa in the flora of saline sites in northern Banat, the Vojvodina Province, Serbia. Of the determined taxa, 363 were included in the ecological analysis of the saline flora, i.e., all 348 determined species, all 14 determined subspecies and, because of its specific importance, only one variety, Aster tripolium var. pannonicus (Jacq.) Beck. Based on the analysis of mean values of ecological indexes (LANDOLT, 1977), we concluded that the saline soil of the studied region is moderately dry (F – 2.65), moderately basic (R – 3.30), moderately abundant with nitrogen (N – 3.08) and humus (H – 2.,95), poorly aerated (D – 3.89), highly saline (S+ – 22.31 %), with a favorable thermal regime (T – 4.03), with the dominance of heliophytes (L – 3.85) which are well adapted to the conditions of the moderate continental climate (K – 3.24) that characterizes the studied region.
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KORMUŤÁK A., VOOKOVÁ B., ČAMEK V., BOLEČEK P. & GÖMÖRY D.  (2008): Pollen size and viability in hybrid swarm populations of Pinus mugo Turra and Pinus sylvestris L. – Thaiszia – J. Bot. 18: 93-100.

Abstract: Pollen size and viability in two hybrid swarm populations of Pinus mugo and P. sylvestris were evaluated using microscopic approach and in vitro germination test. Pollen size of the hybrid swarms was shown to be reduced in comparison with the pollen size of the adjoining control populations of P. mugo and P. sylvestris. The differences in pollen germination percentage of  hybrid swarms at Habovka and Suchá Hora and control population of P. mugo at Roháče have not reached the level of statistical significancy. Statistically significant were only differences in pollen tube length. Hybrid swarms exhibited reduced pollen tubes of 15 % and 31 % in comparison with control populations. This indicate reduced vitality of pollen in hybrid swarms. The conclusion has been drawn postulating partial rather than complete sterility of the hybrid swarms.
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