L. Hably szerk.: Studia Botanica Hungarica 21. 1989 (Budapest, 1989)

Buczkó, Krisztina; Rajczy, Miklós: Contribution to the flora of the Hungarian caves II. Flora of three caves near Beremend, Hungary

Kis Vizes-barlang This was the smallest among the caves studied, its vegetation was poor, but it was the most interesting from the floristic point of view. The climate was determined by the karst water as in the Nagy Vizes-barlang (Fig. 5). Among the 11 algal species, Nitzschia amphibia is remarkable. 5 moss species were recorded here. It is interesting, that the typical troglobiont moss, Rhynchostegiella tenella was found only here (Table 5). The fern flora of this cave was rich and interesting. Aspleniwn adiantwn-nigrum L., a calciphobous species, lived here on limestone. Polystichwn aculeatum (L.) Roth is protected in Hungary it was found also only here. Asplenium, Dryopteris and Phyllitis species which were found in the other two caves were also recorded here. THE LIGHT LIMIT OF PLANTS According to the result of light measurements we found the following limits: 1. Ferns: the last Aspleniwn trichomanes sporophyte was found in Beremendi-ordöglyuk at point 8, where the highest light measured was 426 lux. The last sporopyhte of this species in Nagy Vizes-barlang was found at point 5, with 125 lux. Fig. 4. The change of the relative air humidity (A), temperature (B) and light (C) in Nagy Vizes-barlang.