B. Papp szerk.: Studia Botanica Hungarica 38. 2007 (Budapest, 2007)
Szollát, György, Seregélyes, Tibor, S. Csomós, Ágnes; Standovár, Tibor: The flora and vegetation of Gödi Láprét near Göd, Pest county, Hungary
tional zone, as members of the purple moorgrass and mesophilous meadows, are Molinia coerulea (either in vegetative stage or up to 1 m in flower), Succisa pratensis (40-50 cm), as well as Centaurea pannonica, Genista tinctoria and Serratula tinctoria (40-50 cm) with Briza media and Festuca arundinacea in some sites. On the other hand, Brachypodium pinnatum, Bromus erectus, in some sites Festuca rupicola, Equisetum ramosissimum, Seseli annuum and Bromus inermis are the main representatives of the adjacent semi-dry meadow-steppes, together with Chrysopogon gryllus, Centaurea sadleriana and Trifolium montanum on sites of slightly higher elevations. The phytosociologically indifferent Carex flacca, Galium verum and Ononis spinosa are also frequent in the transitional grasslands. Some of the rarities like Iris spuria, Ophrys sphecodes and Orchis coriophora do also occur in these transitional plant communities. Some sites are of special species composition, as Brachypodium pinnatum and Bromus erectus are associated by masses of Carex acutiformis strictly of vegetative state, accompanied with other sedge species, so that the structure of these sites at first sight resemble a large sedge bed. In the less than 50 cm tall, very dense grassland Molinia coerulea is constant, but not abundant, while Sanguisorba officinalis is very common, none of them produce flowers here. Additional frequent species include Colchicum autumnale, Galium verum, Festuca arundinacea, Dactylisglomerata, as well as Seseli annuum and Ononis spinosa. Of the woody species Salix rosmarinifolia, S. cinerea and Alnus glutinosa are coming up spontaneously after the abandonment of traditional land use {e.g. grazing, scything) long ago. In the most degraded parts of the transitional grasslands Agropyron repens, Cynodon dactylon and Festuca pseudovina appear. Sandy grasslands Four units of sandy grassland are recognised in the Gödi Láprét, these are a) the moderately dry sand meadow-steppe, b) the calciphilous sand steppe, c) the sandy pasture, and d) sand steppe with Centaurea sadleriana. These units are of varying size between ca 300 and 3,000 m 2 . a) Semi-natural or slightly degraded sites of sand meadow-steppe (Astragalo austriaci-Festucetum sulcatae Soó 1957) have in total less than half a hectare in our area of survey. One of the two sites is a small sand dune of NW-SE axis, rising a few metres above its surroundings, situated at the southeastern border of the study area. Besides Stipa capillata as the dominant species of the closed grassland of the NE facing slope, Festuca rupicola, Koeleria cristata, Carexstenophylla and Bothriochloa ischaemum are the abundant components of the vegetation, with Bromus inermis, Agropyron pectinatum, Festuca pseudovina and Cynodon dactylon a few tufts of Festuca x wagneri. Astragalus exscapus, one of the characteristic species of the association occurs here together with other rarities, such as Colchicum arenarium and Iris arenaria, which are relatively abundant in the more disturbed, slightly open grassland of the NW part of the slope. The other sand dune (to the north from the above mentioned one), covered with sand meadow-steppe community, is
