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• Vulpia bromoides and Luzula multiflora in the Dráva Plain (S Hungary)

  234-235

  János Csiky

  Peter Erzberger

  Judit Deme

  Views:

  1662

  Vital populations of Vulpia bromoides (L.) S. F. Gray and Luzula multiflora Kirsch. were found between Vajszló and Páprád villages (S Hungary) in 25 May 2022. The populations grew in a mesic forest clearing in the territory of “Bükkhát forest”. These species are new for the flora of the Drava Plain. The habitat is demonstrated by a phytosociological relevé.

• Remnants of closed oak woods on loess in the Mezőföld (Pulmonario mollis-Quercetum roboris Kevey 2008)

  66–93

  Balázs Kevey

  András Horváth

  Gábor Lendvai

  Views:

  185

  The phytosociological characterization of closed oak forests occurring in the loess-covered part of Central Hungary (Mezőföld) is presented. Such forest fragments are found very sporadically in that predominantly treeless region, mostly in semi-dry habitats of north-facing hillsides. This plant community represents an intermediate stage between open steppe woodland (Aceri tatarici-Quercetum pubescentis-roboris) and closed mesic oak-hornbeam forests (Corydali cavae-Carpinetum). Analyses of 20 phyto­sociological samples using multivariate grouping methods (cluster analysis, principal coordinates analysis) showed a clear difference between these samples and samples of similar communities occurring in the area. In the species composition the characteristic elements of dry and mesic oak forests (Quercetea pubescentis-petraeae, Quercetalia cerridis, Aceri tatarici-Quercion and Fagetalia, respectively) played a major role. On the other hand, dry grassland species (Festuco-Brometea, Festucetalia valesiacae, Festucion rupicolae, etc.) were much less significant than in steppe woodlands. In terms of chorology, European and sub-Mediterranean floristic elements were dominant in the samples, while the proportion of continental elements was substantially smaller than that in steppe woodlands. As a result, our samples were identified with the plant association Pulmonario mollis-Quercetum roboris Kevey 2008, which is classified into the suballiance Polygonato latifolio-Quercenion roboris Kevey 2008 in the phytosociological system.