THAISZIA – JOURNAL OF BOTANY, Volume 12, 2002 – abstracts

Hájek M. & Hájková P. (2002): Vegetation composition, main gradient and subatlantic elements in spring fens of the northwestern Carpathian borders. – Thaiszia – J. Bot. 12: 1-24. – ISSN 1210-0420.

Abstract: The vegetation composition and the physical-chemical properties of waters were recorded on spring fens in the northwestern Carpathians (the Moravskoslezské Beskydy Mts., the Turzovská vrchovina Mts., the Kysucké Beskydy Mts., the Kysucká vrchovina Mts. and the Bieskid Żywiecki Mts.; Czech Republic, Slovakia, Poland). Combinations of species groups, which indicate mineral ion concentration levels in the water, have been used in delimitation of plant communities. The poor-rich trophic gradient controls the major vegetation gradient. Five widely distributed communities were distinguished along this gradient: the Valeriano-Caricetum flavae association (rich alkaline spring fens depositing peat, moderate slopes), the Sphagno warnstorfii-Eriophoretum latifolii ass. (moderately rich, neutral spring fens or alkaline sources of poor water or advanced succession stages), the Caricetum goodenowii ass. (moderately poor, neutral sites with low organic content in the soil), the Carici echinatae-Sphagnetum sphagnetosum flexuosi subass. (poor spring fens with a stable water regime and moderately acid pH) and the Carici echinatae-Sphagnetum sphagnetosum fallacis subass. (strongly acid poor fens, especially sites with lowered water tables). Two other rich fen communities, the Eleocharitetum pauciflorae and the Carici flavae-Cratoneuretum, were found only occasionally in the study area. The vegetation composition correlates best with the pH and conductivity of the water. Both the water redox-potential and the altitude also increase towards the poor end of the gradient. There is an important group of subatlantic species occurring in the study area, generally rare in the Western Carpathians. These species grow mainly in the central part of the major vegetation gradient, on moderately acid and moderately poor fens (Caricetum goodenowii, Carici echinatae-Sphagnetum sphagnetosum flexuosi).

Hrivnák R. (2002): Aquatic plant communities in the catchment area of the Ipeľ river in Slovakia and Hungary. Part I. Classes Lemnetea and Charetea fragilis . – Thaiszia – J. Bot. 12: 25-50. – ISSN 1210-0420.

Abstract: The author reports on the results of the studies on aquatic plant communities of the classes Lemnetea and Charetea fragilis in the catchment area of Ipeľ river in Slovakia and Hungary. In 1993-2000, thirteen aquatic plant communities were identified in this region. Only the occurrence of Hydrocharitetum morsus-ranae, which had been mentioned in the related literature, was not confirmed. The basic synecological, synmorphological and syn-chorological characteristics are presented for each of the plant communities identified in the studied region. The notes of their occurrence in Slovakia and Hungary are mentioned as well.

Huang Y. P., Pu Y. H., Li W. & Wang Ch. (2002): A study on communities with Potamogeton malaianus MIQ. in Poyang Lake Nature Reserve of People’s Republic of China. – Thaiszia – J. Bot. 12: 51-60. – ISSN 1210-0420.

Abstract: Due to its unique environmental and geological traits, Poyang Lake Nature Reserve in China was chosen for studying the characteristics of a Potamogeton community. The results were as follows: (1) two emergent and four submerged macrophytes were identified in the Potamogeton malaianus community, in which four growth forms (herbids, magnopotamids, parvopotamids, valli-sneriids) were classified. Potamogeton malaianus and Vallisneria spiralis L. possessed the highest (100%) frequency and the former also had the maximum dominance. (2) The horizontal structure of the community proved to be uniform rather than any zonation. Potamogeton was clumped in its distribution with three pattern scales: 100 cm2, 400 cm2, and 6400 cm2. (3) Vertical structure of the Potamogeton community appeared rather simple. Only one layer (submerged strata) could be distinguished in most community stands. (4) The biomass of the community was nearly equal to the sum of the biomasses of Potamogeton and Vallisneria and the maximum biomass of the Potamogeton community appeared to be 309.43g.dw.m-2 in the September of the given period.

Ložiene K. (2002): Infraspecific taxa of Thymus serpyllum (Lamiaceae) growing in Lithuania. – Thaiszia – J. Bot. 12: 61-74. – ISSN 1210-0420.

Abstract. Two subspecies of T. serpyllum L. (subsp. tanaensis and subsp. serpyllum) and four varieties of subsp. serpyllum (var. serpyllum, var. lineatus, var. rigidus, var. ericoides) are recorded in Lithuania. In the paper the map of distribution of infraspecific taxa of T. serpyllum growing in Lithuania is presented. All varieties are distributed all over the territory of Lithuania, but var. serpyllum is mostly found. Subsp. tanaensis is a very rare in Lithuania. It was established, that T. serpyllum can grow in variable environments and phytocenologically different habitats.

Kovanda M. (2002): Observations on Carlina biebersteinii. – Thaiszia – J. Bot. 12: 75-82. – ISSN 1210-0420.

Abstract: The variation patterns in Carlina biebersteinii BERNH. ex HORNEM. are briefly outlined and a new subspecies, subsp. sudetica, is described, occurring as an isolated topodeme in a corrie in the Hrubý Jeseník Mts., Eastern Sudeten, and on the verge of extinction. Its morphology, relationships, ecology, geographical distribution and endagered status are discussed.

Kovanda M. (2002): A note on Aster amellus. – Thaiszia – J. Bot. 12: 83-87. – ISSN 1210-0420.

Abstract: Two cytotypes occurring within Aster amellus L., diploid (2n=18) and hexaploid (2n=54) are briefly discussed. Evidence is presented that they are specifically distinct both in quantitative and qualitative characters. The hexaploid cytotype is shown to be identical with what was described as Aster scepusiensis KITAIBEL ex KANITZ 1863. The name A. amellus L. should be reserved for the diploids.

Ture C. & Misirdali H. (2002): A new genus record for the flora of Turkey. – Thaiszia – J. Bot. 12: 89-92. – ISSN 1210-0420.

Abstract: Fagopyrum MILLER (F. esculentum MOENCH) (Polygonaceae) is given as a new genus record for the flora of Turkey. Description, illustration and distribution map of Fagopyrum esculentum in Turkey is given.

Požgaj J., Požgaj R. & Užák D. (2002): Quercus frainetto TEN. on the eastern margin of the Slovenský kras Mts. (Slovakia). – Thaiszia – J. Bot. 12: 93-100. – ISSN 1210-0420.

Abstract: The Quercus frainetto TEN. was registered on the territory of Slovakia within a framework of a complex research of oak distribution. One of its habitats is the locality Debraď on the northern margin of the Slovenský kras Mts.The oak occurs in the Fageto – Quercetum group of forest types, in the forest type 2310 – Beech-oak heavy soils with Carex montana.

Bačkor M. & Mochnacký S. (2002): Collections of lichens at the Herbarium of the Botanical Garden in Košice (KO). – Thaiszia – J. Bot. 12: 101-104. – ISSN 1210-0420.

Abstract: Collection of lichens at the Herbarium of the Botanical Garden in Košice includes about 1000 specimens collected from the 19th century up to the twenties of 20th century by F. Maloch, Kovář, Britzelmayer, Hartmann, Kuťák, Lorinzer, Oborny, and Wolf. Main part of collection is composed from lichens collected in mountain areas of Slovak Republic and Czech Republic. A small parts of the historical collection of lichens originate from Rabenhorst’s „Lichenes Europaei“ herbarium and F. K’ovářs collection (possibly duplicates).

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Mráz P. (2002): Contribution to the knowledge of the Hieracium rohacsense – ISSN 1210-0420. group in the Carpathians. – Thaiszia – J. Bot. 12: 109-135.

Abstract: Two species of the Hieracium rohacsense group are included in the present paper. H. rohacsense KIT. is a tetraploid apomictic taxon confined to the subalpine belt of the West Carpathians (Slovakia and Poland). Morphologically next to H. rohacsense is H. cernaeglavae (HRUBY & ZAHN) MRÁZ, which is considered to be an endemic of the high mountain ranges of the East Carpathians (Ukraine and Romania). The previously reported tetraploid chromosome number (2n=36) of H. cernaeglavae has been confirmed in the population from the Svydovets‘ Mts (Ukraine). The taxa differ in the density of simple eglandular, stellate and glandular trichomes on the involucre. H. rohacsense has the first two types of trichomes denser than H. cernaeglavae, while the glandular ones are rare. Apart from morphology, both taxa could be distinguished also by isozyme pattern, quantity of some flavonoid glycosides, substrate preference and by resistance to the rust fungus – Puccinia hieracii. Although the mode of reproduction in H. cernaeglavae was observed to be apomictic, the morphological variation seems to be higher than in H. rohacsense. Detailed morphological descriptions, nomenclature, chorological data and notes on the ecology of both taxa are given as well. The other taxa included in this group by ZAHN are briefly discussed. One new combination is published; one neotype and several lectotypes are chosen.

Hrivnák R. (2002): Aquatic plant communities in the catchment area of the Ipeľ river in Slovakia and Hungary. Part II. Class Potametea. – Thaiszia – J. Bot. 12: 137-160. – ISSN 1210-0420.

Abstract: The author reports on the results of the studies on aquatic plant communities of the class Potametea in the catchment area of Ipeľ river in Slovakia and Hungary. In 1993-2000, 22 aquatic vegetation units were identified in this region. The synmorphology, synecology, synchorology characteristics of the detected aquatic plant communities are presented.

Adamčíková K. & Juhásová G. (2002): Reproductive structures of Cryphonectria parasitica – ISSN 1210-0420.. – Thaiszia – J. Bot. 12: 161-165.

Abstract: Reproductive bodies of Cryphonectria parasitica – pycnidia and perithecia were studied. Pycnidia and perithecia were imbedded into Spurr´s medium and semithin sections were prepared on ultramicrotome. Sections were observed under light microscopy and studied structures were documented by photographs.

Šoltés R, Dítě D.& Pukajová D. (2002): A new locality of glacial relic moss species Pseudobrym cinclidioides – ISSN 1210-0420. in the Tatra Mts., Slovakia. – Thaiszia – J. Bot. 12: 167-171.

Abstract. The authors collected the glacial relic moss Pseudobryum cinclidioides in the poor fen at Uhliščatká National Nature Reserve in the Tatra Mts. This is the second reliably documented location of this moss species in Slovakia. The phytocoenological features are given.

Bačkor M. & Bodnárová M. (2002): Additions to lichen flora of Slovak Republic I. – Thaiszia – J. Bot. 12: 173-178. – ISSN 1210-0420.

Abstract: This paper includes new or updated data which contribute to knowledge of lichen flora of Slovak republic. We mention 26 genera with 39 species, of which 21 species are considered vulnerable and 5 (Anaptychia ciliaris, Lecanora gisleriana, Parmelia caperata, Ramalina farinacea and R. fastigiata) endangered for the Slovak lichen flora. Most lichens with a certain degree of endangerment are epiphytic or members of plant communities associated with heavy metal rich substrata. Extensions of other lichen taxa, ecological notes and comments on secondary chemistry are also included.

Kovanda M. (2002): A range extension for Campanula moravica – ISSN 1210-0420.. – Thaiszia – J. Bot. 12: 179-183.

Abstract: Based on herbarium material from WU and LE, Campanula moravica (SPITZNER) KOVANDA is reported as new to four more provinces in Austria (Burgenland, Styria, Carinthia, Tyrol), Yugoslavia (Serbia), Bosnia and Herzegovina, Albania, Italy, the Ukraine, Byelorussia and Russia. The distinguishing characters are briefly discussed.

Mráz P. (2002): Carex vaginata Tausch a wrongly reported species from Slovakia. – Thaiszia – J. Bot. 12: 185-189. – ISSN 1210-0420.

Abstract: Carex vaginata, as a native taxon of Slovak flora, has been given in botanical literature since 1939. However, the revision of voucher specimen collected by V. NÁBĚLEK in the Slovenský raj National Park (E Slovakia) and stored in the herbarium SAV revealed, that the collector misidentified C. vaginata with C. panicea. The circumstances of the finding are discussed in the text. The other examined specimens, wrongly determined as well, are added.