In the course of the compilation of a list of high-rank syntaxa of Europe, it appeared that some of syntaxa from south Europe were not validly described. In this paper, the following syntaxa have been either described or validated, such as the Potentillo montenegrinae-Festucion paniculatae (Festucetalia spadiceae, Juncetea trifidi), the Aquilegio nigricantis-Rhododendrion hirsuti (Rhododendro hirsuti-Ericetalia carneae, Rhododendro hirsuti-Ericetea carneae), the Hyperico grisebachii-Pinion mugo (Junipero-Pinetalia mugo, Roso pendulinae-Pinetea mugo), the Lathyro veneti-Taxion baccatae, Quercion petraeo-cerridis (both Quercetalia pubescentis, Quercetea pubescentis) and the Buxo- Syringion vulgaris (Paliuretalia, Rhamno-Prunetea). V okviru priprave seznama seznama sintaksonov visokega ranga v Evropi, se je pokazalo, da nekateri sintaksoni iz južne Evrope niso bili veljavno opisani. V tem prispevku so veljavno opisani naslednji sintaksoni: Potentillo montenegrinae-Festucion paniculatae (Festucetalia spadiceae Juncetea trifidi), Aquilegio nigricantis-Rhododendrion hirsuti (Rhododendro hirsuti-Ericetalia carneae, Rhododendro hirsuti-Ericetea carneae), Hyperico grisebachii-Pinion mugo (Junipero-Pinetalia mugo, Roso pendulinae-Pinetea mugo), Lathyro veneti-Taxion baccatae in Quercion petraeo-cerridis (oba Quercetalia pubescentis, Quercetea pubescentis) in Buxo-Syringion vulgaris (Paliuretalia, Rhamno-Prunetea).