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• Monitoring of the Apium repens population near Császártöltés (2006–2015)

  1–8

  András Kun

  Views:

  162

  Detailed botanical surveys were carried out to monitor the population size of Apium repens in the Vörös-mocsár nature protection area (located in S Hungary, Császártöltés). We found a clear correlation between the water status and the land use type and management of the habitats and the size of the Apium repens population. Apium repens is a Nanocyperion-species, which simultaneously requires wet and open surfaces. Its population shrinks, becomes latent or disappears if its habitat dries out or any other radical transformation happens, like too much leaf litter, closure of the vegetation, or succession on the open peat surfaces. Proper management (water retention, extensive grazing, mowing, open peat surface) has a very positive effect on the populations in a short time, even within a growing season. The research was implemented within the framework of the National Biodiversity Monitoring System, in cooperation with the Kiskunság National Park Directorate.

• 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:

  225

  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.

• Short communications

  159-164

  Róbert Kun

  Csaba Vadász

  Nikoletta Kálmán

  Ádám Bodor

  Adrás István Csathó

  Csaba Molnár

  Dávid Schmidt

  Miklós Óvári

  Attila Molnár V.

  Attila Molnár

  Gábor Tihanyi

  Gergely Gulyás

  Views:

  212

  1. Occurrences and habitats of Oxytropis pilosa (L.) DC. near Kunbaracs village and on other grassland sites of Peszéradacs meadows (Kiskunság)

  2. Acer acuminatilobum (J. Papp) J. Papp 1958 (Mátra-ancient maple) in Mátraalja

  3. Occurrence of Euphorbia prostrata Aiton and Polycarpon tetraphyllum L. in West-Transdanubia (W Hungary)

  4. Muscari tenuiflorum Tausch in Keszthely Mt (Hungary, Transdanubia)

  5. Occurrence of Dasineura urticae (Perris, 1840) on Urtica kioviensis Rogow. in Hungary

  6. New occurrences of Trifolium vesiculosum Savi in the Hortobágy region (E Hungary)

   

   

• Data to the flora and vegetation of Hungary III.

  197-206

  László Erdős

  Eszter Aradi

  Zoltán Bátori

  Csaba Tölgyesi

  Views:

  149

  We report the occurrence data of 44 vascular plant taxa collected at various localities in Hungary (mainly the Danube–Tisza Interfluve and South Transdanubia) during floristic, vegetation and ecological field surveys between 2016 and 2018. Of the species in the present article, 27 are protected or strictly protected. In the paper we focused on plants that are rare regionally (e.g. Botrychium lunaria, Polystichum aculeatum) or in the whole country (e.g. Ophrys oestrifera, Ranunculus psilostachys), as well as on plants that occurred in unusual habitats (e.g. Corydalis solida). We also included new localities of weedy species, some of which (e.g. Opuntia humifusa, Sporobolus cryptandrus) may present nature conservation threats.

• Data to the flora and vegetation of Hungary II.

  104–113

  Eszter Aradi

  László Erdős

  Viktória Cseh

  Csaba Tölgyesi

  Zoltán Bátori

  Views:

  167

  We report the occurrence data of 45 vascular plant taxa collected at various localities in Hungary (Duna–Tisza Interfluve, Tiszántúl and South Transdanubia) during floristic, vegetation and ecological field surveys mostly between 2013 and 2016. Many of these plants are included in the ’Red list of the vascular flora of Hungary’ (e.g. Astragalus dasyanthus, Erodium ciconium and Lotus angustissimus). We primarily focused on the occurrence of rare plants (e.g. Apium repens, Epipactis bugacensis and Trifolium strictum), plants that appeared in unexpected places (e.g. Medicago arabica, Polypodium vulgare and Polystichum setiferum) or have a phyto-geographic importance (e.g. Piptatherum virescens, Ranunculus psilostachys and Tamus communis).

• Data to the flora and vegetation of Hungary I.

  89-104

  Zoltán Bátori

  László Erdős

  Csaba Tölgyesi

  Eszter Aradi

  Views:

  79

  The present study reports the occurrence data of 54 vascular plant taxa, collected at various localities in Hungary during floristic, vegetation and ecological field surveys between 2000 and 2013. In some cases, phytosociological relevés were prepared to characterize the local coenological properties of the species. Many of these species are included in the „Red list of the vascular flora of Hungary” (e.g. Carthamus lanatus, Sedum caespitosum, Spiranthes spiralis and Trifolium micranthum). Some of them (e.g. Apium repens, Dianthus diutinus, Epipactis bugacensis and Ranunculus psilostachys) are rarities in the whole country. Our findings suggest that conservationists should focus not only on the maintenance of semi-natural habitats but also on the investigation of secondary habitats (e.g. river embankments, temporary pools on arable fields) in order to maintain the total species diversity of the landscape.