Acta Botanica 40. (1997)

1997 / 1-4. szám

CONTENTS Barczi, A, Penksza, К., Czinkota, I. and Néráth, M.: A study of connections between certain phytoecological indicators and soil characteristics in the case of the Tihany peninsula......... 1 Borhidi, A.: Studies in Rondeletieae (Rubiaceae), XIII. new combinations of Mexican and Central American plants ............................................................................................................................ 15 Borhidi, A., Darók, J. and Kaposvári, F.: Two new species of the genus Javorkaea Borhidi et J. Komlódi (Rubiaceae) ................................................................................................................ 17 Buczkó, К. and Ács, É.: Zonation of periphytic algae in two Hungarian shallow lakes (Lake Velence and Fertő) ........................................................................................................................ 21 Csontos, P., Tamás, J. and Kalapos, T.: Soil seed banks and vegetation recovery on dolomite hills in Hungary ............................................................................................................................. 35 Diego-Pérez, N„ Oviedo Prieto, R„ Lozada, L. and Fonseca, R. M.: Vegetáción costera de lagunas y zonas inundables Cuba-Guerrero, México............................................................. 45 Farkas, Á., Orosz-Kovács, Zs., Bubán, T. and Fejes, J.: Pollen viability of pear cultivars ... 113 Kiss, A. and Németh, J.: Temporal changes of algal communities in the “Mély-mocsár” (Hun­gary) ............................................................................................................................................... 119 Matus, G.: Distribution of species attributes in secondary succession of an overgrazed pasture in East Hungary ............................................................................................................................ 137 Papp, B. and Rajczy, M.: Bryophyte flora of the branch-systems of the Danube in Szigetköz in 1991-92 ......................................................................................................................................... 149 Papp, M.,'Hamvas-Mikó, M. and Nagy, M.: Floristical and phytocoenological studies on the pasture of village Penészlek (Northeast Hungary)...................................................................... 167 Précsényi, 1. and Mészáros, I.: The responses of a Potentilla arenaria Borkh. subpopulation to some soil factors in sandy grassland ....................................................................................... 193 Raus, Th.: Zwergbinsen-Gesellschaften des Fimbristylidenion bisumbellatae in Griechenland -Kenntnisstand und Forschungsbedarf........................................................................................... 203 Szabó, T., Farkas, Á„ Orosz-Kovács, Zs., Bubán, T., Nagy-Tóth, E., Zorn, R., Görög, E., Fejes, E. and Székely, M.: Pollen viability and fruit set in apple cultivars............................ 215 Tóth, A. and Török, К.: Survival chances of loess grassland fragments in the Hortobágy, Hun­gary: a case study on the community transformation effect of a collapsed wayside inn......... 225 Vojtkó, A.: The vegetation of the Bükk plateau (NE Hungary) II. the grassland communities of the limestone and dolomite rocks................................................................................................. 239 Zahedi Pour, H. and Ejtehadi, H.: Grazing effects on diversity of rangeland vegetation: a case study in Mouteh Plain, Iran .......................................................................................................... 271 Zahedi Pour, H. and Turcsányi, G.: Comparison of diversities of three differently grazed sites in Iran ............................................................................................................................................. 281 Zima, G., Bacic, T., Bede, M. and Zahirovic, Z.: Comparative study of stomata and some other properties in three new Croatian wheat (Triticum aestivum 1.) genotypes..................... 289

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