L. Lőkös szerk.: Studia Botanica Hungarica 26. 1995 (Budapest, 1995)

Penksza, Károly: Flora of the Fehér-szirt and its surroundings near Kesztölc, Hungary

taris L., Orchis purpurea Huds., Orchis ustulata L., Oxytropis pilosa (L.) DC, Phlomis tuberosa L., Polygala major Jacq., Pulsatilla nigricans Störck, Sedum hillebrandtii Fenzl, Stipa eriocaulis Borb., Stipa joannis Celak, Stipa pulcherrima C. Koch. Special attention is due to Epipactis palustris (L.) Crantz, because this record is the second one for the Pilis region. Further new data to this region are: three specimens of Rosa hungarica Kern, on the talus slope of the Fehér-szirt, Malcolmia af

ricana (L.) R. Br. spreading upwards along cart-tracks, Sempervivum marmoreum Griseb. occurring in high quantities in the rock grassland of the western slope of the Fehér-szirt and Ornithogalum degenianum Polgár occurring frequently on cultivated and abandoned vineyards. Among Cotoneaster species C. niger (Thunbg.) Fr. is found here. By autumn its fruits turn black or deep lilac. FEICHTINGER (1899) reported Cotoneaster vulgaris Lindl., which was later considered as a synonym of Cotoneaster integerrima Medik. by SOÓ (1966). Considering the colouration of the ripened berries (black or deep lilac), this species can surely be identified as C. niger (Thunbg.) Fr. (DOMOKOS 1938,1944). The distribution of Festuca species on the area is shown in a vegetation profile by CSÁNYI-KOVÁCS (1972) and CSÁNYI-KOVÁCS and HORÁNSZKY (1973). Recent distribution of the Festuca species can be seen on Figure 2. The following remarks are necessary to their distribution: - Festuca rupicola Heuff. (not mentioned by the authors above), always occurs in rather mesophytic habitats like in the eastern slope rock grassland of the Fehér-szirt, in the open woodlands between the Fehér-szirt and Tábla-hegy and in the herbaceous layer of black locust forests. - Sometimes Festuca pallens Host is replaced by Festuca valesiaca Schleich, in the rock grasslands on the western slopes of the Fehér-szirt. Festuca rupicola Heuff. does not occur in steppe slopes and sandy steppe meadows, though it would expected even from the names of the associations, but Festuca valesiaca Schleich, and Festuca pseudovina Hack, ex Wiesb. can be found in great quantity. The species list of the swamp meadows (PENKSZA 1991) is further extended owing to three newly discovered areas. Rare, protected and character species of the swamp meadows are the following: Carex hostiana DC, Dactylorhiza incarnata (L.) Soó, Eleocharis quinqueflora (F. X. Hartmann) O. Schwarz, Epipactis palustris (L.) Crantz, Eriophorum latifolium Hoppe, Juncus subnodulosus Schrank, Molinia hungarica Milkovits, Orchis militaris L. Some individuals of Thymus serpyllum L. were found in the sandy area W of Kesztöíc. This thyme species does not spread across the saddle between Fehér-