L. Hably szerk.: Studia Botanica Hungarica 19. 1986 (Budapest, 1986)

Rajczy, Miklós, Buczkó, Krisztina; P. Komáromy, Zsuzsa: Contributions to the flora of the Hungarian caves I. Flora of the entrances of the caves Lök-völgyi-barlang and Szeleta-barlang

dum in sample 6 is the result of such a contamination. Anyway, appearance of such number of species proves that this phenomenon must be rare (contamination with 8 new species in one occasion is very unlikely). As we can see in Table 3 disappearance of species is not rare at all (e.g. Chlorella homosphaera from samples 6 and 8). Though we have only few data on the problem, it is clear that the repeated examination of the cultivation tubes is essential. Acknowledgements. - The authors are greatly indebted to L. VAJDA and I. GALAMBOS who gave the permission to publish their data and to K. SZÉK.ELY, curator of the Hungarian Cave Survey of the Speleological Institute of the National Authority for Environment Protection and Nature Conservation, whose help was invaluable in getting both the geographical and the literature data of the caves. REFERENCES CLAUS, Gy. (1955): Algae and their Mode of Life in the Baradla Cave at Aggtelek. - Acta bot. hung., _2: 1-27. DOBAT, K. (1966): Die Kryptogamenvegetation der Höhlen und Halbhöhlen im Bereich der Schwabischen Alb. - Abh. Karst. Höhlenkunde, Reihe E (Botanik), 3. pp. 63. DUELL, R. (1984-85): Distribution of the European and Macaronesian mosses (Bryophytinal

. Part I. - II. - Bryologische Beitraege, 4: 1-113., _5j 110-232. HAJDÚ, L. (1977): The flora of Hungarian caves. - Karszt és Barlang (Budapest), Special Issue, 1977: 39-42. HAJDÚ, L. & ORBÁN, S. (1982): Über die grüne Pflanzenwelt der Baradla-Höhle bei Aggtelek (Ungarn). - Studia bot. hung., 1_5: 5-17. HORVÁTH, K. (1975): A novel rapid method for preparation of diatoms. - Acta biol. debrecina, 12: 117-118. KADIC, O. (1915): A Szeleta-barlang kutatásának eredményei. (Ergebnisse der Erforschung der Szeleta-Höhle.) - Magy. Állami Földt. Intéz. Évk., 23_: 147-278 (157-302). KADIC, O. & MOTTL, M. (1938): Felsó'tárkány vidékének barlangjai. (Die Höhlen der Umgebung von Felsó'tárkány.) - Barlangkutatás (Budapest), 16_: 8-89. KOL, E. (1964): The Microvegetation of a small Ice-Cave in Hungary. - Int. J. Speleol., 1: 19-24. LOKSA, I. (1962): Über die Landarthropoden der István-, Forrás- und Szeleta-Höhlen bei Lillafüred. - Karszt- és Barlangkutatás (Budapest), 3_: 59-81. MORTON, F. fe GAMS, H. (1925): Höhlenpflanzen. - Speläologische Monographien V., E. Holzel, Wien, pp. 227. P. -KOMÁROMY, Zs. (1977): The algal flora of the Ördöglyuk cave at Szoplak (Hungary). - Annls hist.-nat. Mus. natn. hung., £9j 29-35. P.-KOMÁROMY, Zs., PADISÁK, J. & RAJCZY, M. (1985): Flora in the lamp-lit areas of the cave "Anna-barlang" near Lillafüred (Hungary). - Annls hist.- nat. Mus.natn.hung.

, 77: 103-112. PALIK, P. (1964): Über die Algenwelt der Höhlen in Ungarn.- Int. J. Speleol., 1: 35-44. SCOPOLI, J. A. (1760): Flora carniolica. - J.T. Trattner, Viennae, pp. 607. STEIN, J. R. (1973): Handbook of phycological methods, culture methods and growth measurements. - Cambridge Univ. Press, pp. 448. SUBA, É. (1957): Die Algen der Pálvölgyer Höhle in Ungarn. - Verh. zool.-bot. Ges. Wien., 97: 97-110. Authors' address: Dr. M. RAJCZY K. BUCZKO Dr. Zs. P.-KOMÁROMY Botanical Department of the Hungarian Natural History Museum Budapest, Pf: 222. H-1476 HUNGARY