B. Papp szerk.: Studia Botanica Hungarica 39. 2008 (Budapest, 2008)

Bauer, N., Lőkös, L.; Papp, B.: Distribution and habitats of Cardaminopsis petraea in Hungary

The list of lichens from the studied quadrates ("Kőmell" relevés 21-30) is mostly composed of species which frequently colonise shaded calcareous rocks, like Bacidina egenula, Catillaria lenticularis, Gyalecta jenensis, Lecidella stigmatea, Placynthium hungaricum and Protoblastenia rupestris, while other species, such as Aspicilia calcarea, Lecanora albescens, Lobotballia rádiósa and Placocarpus schaereri (Table 4) usually prefer exposed rocks. Dirina stenhammari is a rare species with only 3 former localities from Hungary (VERSEGHY 1994). Not previously known from the Keszthely Mts, Solenopsora candicans had two former occurrences from Hungary (Buda Mts: Nagy-Szénás; Keszthely Mts: "Rezi csere"), but these have never been published. As the 3rd location of the species, it is 10 km far from the other locality in the Keszthely Mts ("Rezi csere"). Most of the bryophytes found in the studied quadrates are characteristic species of shaded rocks. Some of them prefer exposed rocky places as Orthotrichum cupulatum and Radula complanata. In the quadrates Kőmell 28-30 some species living on soil in closed grassland or at forest margins were also detected (e.g. Rhytidiadelphus triquetrus, Scleropodium purum, Thuidium recognitum). Gymnostomum calcareum collected in the quadrates Kőmell 21-25 is an indicator species of shaded calcareous rocky places in good natural condition. Situation of the stand in Bise-kő is equal to the stand of Kőmell. In Bise-kŐ the common co-occurring species of Cardaminopsis petraea are Asplenium ruta-muraria, Sedum album, Campanula rotundifolia, Allium montanum, and Festuca pallens. In this habitat the relicts typical on dolomite in the Transdanubian Mts, as Seseli leucospermum, Biscutella laevigata, and Dianthus plumarius, are also present. The vegetation is a rocky wall variant of a dolomite rocky grassland community. Concerning the habitat preferences of Cardaminopsis petraea in Hungary, the analyses based on relevés taken in Bohemia show similar results: there, it also grows on base-rich volcanic bedrocks and also on dolomite. CHYTRY (2007) stated that Cardaminopsis petraea occurs in Festuco pallentis-Aurinietum saxatilis association typical in the North Bohemian volcanic hills, and in Saxifragopaniculatae-Seslerietum caeruleae Klika 1941 association typical on limestone and on base-rich siliceous bedrocks.