L. Lőkös szerk.: Studia Botanica Hungarica 27-28. 1996-97 (Budapest, 1978)

Szerdahelyi, Tibor, Penksza, Károly, Dobolyi, Konstantin Z., Szollát, György, Kapocsi, Judit; Figeczky, Gábor: Vegetation and point-mapping survey in the strictly protected areas of the landscape protection area of the Pilis Mts (Hungary)

types of herb layer can not be differentiated sharply from each other, but instead it has a mosaic-like structure or their species pools are mixed. Range 39: Predominantly Asperula odorata-type Querco petraeae-Carpinetum stands and Melitti-Fagetum stands with smaller Carex pilosa patches are present. Range 40: On Kis-Cserepes-tető a Melica uniflora-type Quercetum petraeae-cerris stand stretches. On the southeastern slope facing the valley Asperula odorata-type Querco petraeae-Carpinetum stands extend. Pilisszentlélek Range 22: Its southern part is covered by a Querco petraeae-Carpinetum association on a plateau, mainly with the dominance of oak trees. On the north facing slope Asperula odorata-type Querco petraeae-Carpinetum is present, too. On the plateau Carex pilosa also appears in small patches. Fekete-kő and surroundings Range 23: Part A and B are nudum-type Melitti-Fagetum stands on a steep northern slope. The stands are approximately 80-100 years old, the trees are almost even-aged, without considerable amount of saplings. In some places bare rocks appear indicating the shallow soil. We suggest gradual thinning instead of clear cutting as regeneration method to protect the habitat. Part C includes the cliff Fekete-kő and its surroundings. In the western side it is bordered by Seslerio hungaricae-Fagetum, on the eastern border the Querco petraeae-Carpinetum stand is replaced by rocky grassland patches. Fekete-kő itself is a projecting dolomite cliff with habitat suitable for Seseli leucospermoFestucetum pallentis association. The observed protected and further characteristic species of the area are the following: Dianthus serotinus var. Soói, Pulsatilla grandis, Sempervivum hirtum, Carex humilis, Carex distans, Centaurea sadleriana, Festuca pallens, Allium montanum, Allium flavum, Sorbus danubialis, Inula ensifolia, Achillea distans, Seseli osseum and Oryzopsis virescens. The cliff Fekete-kő and its surroundings are popular recreation areas with a crossing point of tourist footpaths. Although the rock-climbing school officially does not exist here any more, the sites were frequently visited by climbers, according to our experiences. Treading endangers rare plants, and induces degradation processes. To prevent or decrease these dangers we suggest to put up a guard-rail on the top of the cliff Fekete-kő. Range 34: There is a continuous stand of nudum-type Melitti-Fagetum on the northern slope. The same silvicultural consideration holds as in the case of 23A, B, i.e. we suggest gradual thinning as regeneration method when the forest reaches the cut age.