Zs. P. Komáromy szerk.: Studia Botanica Hungarica 13. 1979 (Budapest, 1979)

Németh, Ferenc: The vascular flora and vegetation on the Szabadszállás-Fülöpszállás territory of the Kiskunság National Park (KNP), I.

tematic effects the significance level cannot be calculated therefore only those values are considered, which show the greatest deviations from 1. The greatest relative rise occurs in the archaeophytonadventive category in consequence of a longstanding and strong degradation of the natural vegetation. There is a considerable relative increase in the cosmopolitan, eurasian, centraleuropean, paleotropic and circumpolar elements too. For the interpretation of this characterless feature of the Szabadszállás flora similar investigation on other sodic desert flora in Hungary would be necessary considering also the geobotanical, coenological and ecological interrelations between the species. It is remarkable, however, that the continental-pontic (-pannonian) character, which is said to be typical of the Hungarian sandy, loessic and sodic desert floras, in this case is not evident. COENOLOGICAL SPECTRUM - Because the analysis of coenological samples is being carried out, now the coenological character of the species is given only in outline. It is also important, from the viewpoint of the comparison, that the coenological character of the most species has not yet determined exactly. Our coenological groups and their association-equivalents (SOO 19 64) are following: A : Ruppion maritimae, Bolboschoenion maritimi, Verbenion supinae, Puccinellio- Salicornetea B : Hydrocharietalia, Potametalia, Phragmitetalia, Molinio-Juncetea, Arrhenatheretum elatioris, Alnetea glutinosae C : Corynephoretea, Festuco-Brometea, Orno-Cotinion, Prunion spinosae D : Querco-Fagetea, Quercion petreae, p. p. Aceri-Quercion E : Secalietea, Chenopodietea F : others O : neutral species AB, AC, BC, BD, CD, ABC, BCD: species with mixed or transitional character. For this classification the AchiUeo-Festucetum pseudovinae seems to be problematic: it is considered to be a typical halophile association, though it seems - at least in our area- to be the last station of degradation of sandy or loessic meadows on sodic undersoils. Its species, however, must not be placed automatically into the group AC, only those, which are joined to group C; the species joined to group A are arranged into group A. The placing of species Agrosti-Caricetum distantis can be solved similarly: only the species joined with B are placed into the group AB, the others into A. Another problem is that many species in our area do not follow their coenological character known from the literature (summarized in SOÓ 1964). Therefore it is necessary to compare the Hungarian flora with the Szabadszállás flora on the basis of both the data of the literature (SOO 1. c. ) and our own coenological samplings. Secondly the two latter distributions are compared with each other. The percentile values are represented in Table 4. These relations are shown in Fig. 2. For characterizing the relative impoverishment or richness of our coenological groups, the quotients of corresponding categories of compared flora were calculated (see above). The quotients are represented in Table- 5. Comparing the Hungarian and the Szabadszállás flora on the basis of the literature (their quotients are given in the 1

st column of Table 5) strong rise