Within the working plan of the IAVS the elaboration of a consense list of the higher syntaxa of Europe is running. During several decades different surveyes of the phytosociological units of Hungary were published by R. Soó (e.g. 1964, 1968, 1971, 1973). The last one appeared in the 6. Volume of the Synopsis Systematico-Geobotanica Florae Vegetationisque Hungariae (Akadémiai Kiadó, Budapest) in 1980. After this date a number of important syntaxonomic works have been published from the Central and South-East European countries, (Pott, 1992, 1995; Grabherr et al., 1993; Valachovich et al., 1995; Moravec et al. 1995; Coldea, 1998). Results of these works were applied and critically treated for the Hungarian vegetation units by Borhidi and Borhidi and Kevey in 1996. Recently the Red Data Book of the Plant Communities of Hungary is published in Hungarian language in two volumes (editor Borhidi A. and Sánta A.,1999) with the contribution of 12 authors. The following checklist represents the up to date concept of the Hungarian phytosociologists and vegetation ecologists about the higher syntaxonomic units of Hungary.