Zs. K. Komáromy szerk.: Studia Botanica Hungarica 17. 1984 (Budapest, 1984)
Szujkó-Lacza, Júlia: The flora of the Kerecsendi berek forest
The check-list contain 348 taxa altogether of the plants Kerecsendi berek forest, including those of a forest and area in its vicinity. Moreover, I have also taken in to account old herbarial data from BP. ZÓLYOMI (1957) published 118 taxa based on the analysis of the Aceri tatarico-Quercetum community, but he noted that there was a fragment of the Fraxino pannonici-Ulmetum assotiation too. However, ZÓLYOMI' s publication did not separately the species belonging to the latter community. I have not found twenty-two species mentioned by ZÓLYOMI (I.e.) Some of these were mentioned here in a wider sense in time the data of KITAIBELs records form the end of the 18th and the beginning of the 19th century were also included. However, positive differences (230 taxa) were found which are connected with the larger size of the study area, and the greater number of visits to Kerecsend. The number of species was also increased by the identification of the Quercus and Rosa taxa by specialist incorporating the most up-to-date of taxonomy. The answer to our first question is a positive one. The Kerecsendi berek forest has been successfully protected up-today. The refinement of the scale of the microhabitat where the varions taxa occur resulted in the possibility of counting the species which occur only in one (in any) community. Moreover, the coenological of those species which occur in more than one microhabitats can be ascertained (Table 1) According to this rigorous record of the occurrence of the taxa, 58 species grow only in the Aceri tatarico-Quercetum, 50 species were found only in varions roads of Aceri tatarico-Quercetum, the Polygonato (latifoliae)-Carpinetum has 6, the Salvio (nutanti-nemorosae)-Festucetum 21, and 11 taxa grow only in the Fraxino pannonicae-Ulmetum community. There are 23 in common species between the Aceri tatrico-Quercetum and the Fraxino pannonicae-Ulmetum; 13 taxa in common Salvio (nutanti-nemorosae)-Festucetum and the roads in Aceri tatarico-Quercetum, but only five are in common between Aceri tatarico-Quercetum and Salvio (nutanti-nemorosae)-Festucetum. The other combinations of the microhabitats and taxa number resulted low values (Table 1). Naturally, increasing the number of microhabitats in a group decreases the number of participating taxa. Those combinations in which only one species was in common are summarized as "others" (Table 1). But in the other hand these species have the greatest coenological valency in this region and they show less fidelity to any microhabitat or community. Immigration of plants to this locality took place from the Eurasian Mediterranean, sub-Mediterranean (86 taxa); Eurasian (43 taxa); European (21 taxa); European (Mediterranean) and Central European (19-19 taxa); sub-Mediterranean (Central-European) (13 taxa); Central European (Mediterranean (12 taxa); Circumpolar (11 taxa); Eurasian-Continental (10 taxa) area. Species belonging to the other floral elements are less frequent (Table 2). Entering the Kerecsendi berek forest the white and rose coloured flowers of the CentralEuropean Corydalis cava appear in mass in the spring aspect in the Aceri tatarico-Quercetum, in the Fraxino pannonicae-Ulmetum and in the Polygonato (latifoliae)-Carpinetum forests. The Aceri tatarico-Quercetum was characterised by ZÓLYOMI (I.e.) from coenologicaly point of view. Some new characteristic features may be given considering the flora-element composition of the investigated area. Such species are, e.g., the East-Mediterranean-Balkanian Quercus dalechampii var, pinnatifida , the South-East European Doronicum hungaricum , S-E European (Pannonian-Balkanian) Euphorbia epithymoides , the Eurasian-Continental Viola sauvis (ZÓLYOMI!), the Ponto-Mediterranean Ornithogalum gussonei , the Eurasian Platanthera bifolia . In the margin of the Aceri tatarico-Quercetum grow the Central European (Mediterranean) Dictamnus albus , the Eurasian-Continentale Pulmonaria mollis ssp. mollissima, the Ponto-Pannonian (Caucasian) Rosa caryophyllacea , the Central-European (sub-Mediterranean) Rosa elliptica , R. gallica , R. micrantha , the Ponto-Pannonian (Balkanian) Iris variegata and the Eurasian-Continental Clematis integrifolia floral elements. Only in the roads of the Aceri tatarico-Quercetum occur the Eurasian Nepeta pannonica, the Central European (Mediterranean) Peucedanum officinale , the Eurasian (Continental) Ranunculus pedatus , the Pannonian endemic Thlaspi jankae, the Pontian-Southeast European Veronica orchidea , the Ponto-Pannonian Vinca herbacea , the Ponto-sub-Mediterranean Iris graminea ssp. pseudocyperus , the South East European-Central Asian Muscari tenuiflorum .
