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• Data to the flora and geobotany of Kisalföld (Lesser Plain) region, NW Hungary

  235-253

  Gergely Király

  Gábor Takács

  Angéla Király

  Views:

  145

  Lesser Plain (Kisalföld) – divided among three countries (Austria, Hungary and Slovakia) – is the westernmost part of the lowland areas of the Pannonian Basin. Present paper provides a résumé of the authors’ floristic work from the Hungarian part of the area, describing localities, habitats and regional phytogeography of 57 taxa altogether. The localities were listed according to the classification of small geographic regions. The most important results of the study are as follows:

  • We recorded 5 species new to the region (Brachypodium rupestre, Bromus ramosus, Hypericum dubium, Lathyrus sphaericus, Tordylium maximum); all of them can be considered as submontane-montane elements.
  • We reported several species new to a microregion within the Lesser Plain: montane species in the W-SW part of the Plain (Cirsium rivulare, Dryopteris dilatata, Equisetum telmateia), loess-connected species mainly on the Moson Plateau (Agropyron cristatum, Allium atroviolaceum, Euphorbia salicifolia, Viola ambigua); and occurrences of species on sandy soils near the Lake Fertő (Draba nemorosa, Stipa pennata).
  • We explained the known localities of several salt tolerant species (e.g. Carex divisa, Crypsis alopecuroides, Juncus maritimus, Limonium gmelinii, Suaeda pannonica) from the Lake Fertő and its surroundings.
  • We assessed the role of the forest management and nature conservational actions in the distribution of some important tree species (Acer tataricum, Betula pubescens, Fraxinus ornus, Quercus petraea, Salix pentandra).
  • We discussed the regional nature conservational status of several protected and/or threatened species (e.g. Allium carinatum, Allium suaveolens, Carex strigosa, Hottonia palustris, Potamogeton coloratus, Stellaria palustris) in the Lesser Plain.

  The activities of the authors in the surroundings of Győr were supported by monitoring results gained during the Hungarian Little Plain project (LIFE08 NAT/H/000289).

• Occurrences of sea lyme grass (Leymus arenarius) in the Kiskunság, Hungary

  106-108

  Anikó Csecserits

  Zsolt Bakró-Nagy

  András Kelemen

  Tamás Rédei

  Gábor Tóth

  Csaba Tölgyesi

  Views:

  249

  We present six new occurrences of a rare non-native species, the sea lyme grass (Leymus arenarius (L.) Hochst.) in the Kiskunság region, Hungary. The populations grow in disturbed, secondary habitats (e.g., abandoned fields, recultivated landfills, surroundings of farms), but one of them begins to expand on the adjacent natural open sandy grassland. Most of the occurrences occupy several hundred square meters and in some cases it forms almost monodominant stands. We suppose that the species has the potential to become an invasive species in this inland sand region.

• Data on the occurrence of sedge species (Carex, Cyperaceae) in and around South Nyírség (East Hungary)

  165-198

  László Demeter

  László Szél

  Views:

  423

  We provide floristic data on a total of 38 sedge species in the area of South Nyírség and its immediate surroundings. We also detected some populations of previously undescribed or rare species in the Hungarian Great Plain, such as Carex buxbaumii, Carex hartmanii, Carex umbrosa, and Carex paniculata. We report several new occurrences of species with little literature data from the area, such as Carex brizoides, Carex michelii, Carex pallescens, Carex elongata. However, during the last 13 years, we were not able to detect seven species previously mentioned in the literature. Herbarium data confirmed that some of the older Carex nigra occurrences for the area actually refer to Carex cespitosa. Based on herbarium data and the literature, we think that local data on Carex pairaei may largely refer to Carex divulsa subsp. leersii and/or Carex spicata. Contrary to many pieces of literature, Carex vulpina was not observed inside the sandy area.

• New occurrence of Cycloloma atriplicifolia in the Northern part of Kiskunság region (C Hungary)

  107–108

  Anikó Csecserits

  Sándor Barabás

  Views:

  236

  A new occurrence was found of the rare non-native species, Cycloloma atriplicifolia (Spreng.) J. M. Coult. in the Northern part of Kiskunság, Hungary on 02.07.2019 on a sandy road [N 47.297476°, E 19.382936°, KEF: 8782.1]. This is 80 km apart from the first and until now single occurrence of this species in Hungary. The authors removed the individuals, however, some seeds could remain in the soil. It is assumable, that the species was spread by wheels of the car used by the authors, as they visited the original occurrence of the species and the new one during the autumn in 2018 with the same car. This new occurrence draws attention to an important, but overlooked invasion pathway: to the invasion with cars of ecologists.