L. Hably szerk.: Studia Botanica Hungarica 23. 1992 (Budapest, 1992)

Papp, Beáta: Phytocoenological survey along the Koloska stream (Balaton-felvidék region, Hungary)

acutiformis ripariae (B). The samples in each group are closely connected and the two groups are also quite similar because of their common species. The 1st, 2nd, 3rd, 4th and 5th relevés form a very separate group. These were sampled in the Glycerio-Sparganietum var. typicum (A). This community is very diverse and hence its relevés are generally not too similar to one another. The causes of the high diversity were mentioned earlier. The 13th, 14th and 15th relevés were sampled in the Glycerio-Sparganietum var. sparganietosum (F). Samples of this community are somewhat similar to relevé No 16th sampled in a stand of Calamagrosti-Salicetum cinereae (G). This similarity is caused by the presence of the common species and their similar abundance relations in Glycerio-Sparganietum var. sparganietosum and the herb stratum of the Calamagrosti-Salicetum cinereae. The 17th relevé was sampled in the Glycerio-Sparganietum var. sparganietosum stand (H) near the Koloska restaurant. It shows no close connection with any of other samples of the same community due to the changes in species composition and abundance relations observed in this area. Acknowledgement: lam very grateful to Dr Edit LANG for her assistance during the study. REFERENCES BRAUN-BLANQUET, J. (1951): Pflanzensoziologie. Grundzüge der Vegetationskunde. 2. Aufl. - Springer-Verlag, Wien, 865 pp. CZEKANOWSKI, J. (1909): Zur differential Diagnose der Neandertalgruppe. KorrespBl. dt. Ges. Anthrop. 40: 44-47. KOVÁCS, M. (1957): A Nógrádi flórajárás Magnocaricion társulásai. (Die Magnocaricion-Zönosen des Nógráder Florendistrikts.) - Bot. Közlem. 47: 135-155. KOVÁCS, M. (1962): Übersicht der Bachröhrichte (Glycerio-Sparganietum) Ungarns. - Acta bot. hung. 8: 109-143. KOVÁCS, M. and FELFÖLDY, L. (1958): Vegetáció tanulmányok az Aszófői-séd mentén. (Vegetations-Studien an den Ufern des Baches Aszófői-séd, BalatonGegend, Westungarn.) -Annls Inst. biol. Tihany 25: 137-163. KOVÁCS, M. and FELFÖLDY, L. (1960): Vegetáció-tanulmányok a Pécsely-patak mentén. (Vegetations-Studien an den Ufern des Baches Pécsely-patak, Balaton-Gegend, Westungarn.) - Annls Inst. biol. Tihany 27: 75-83. MAAREL, E. (1979): Transformation of cover-abundance values in phytosociology and its effects on community similarity. - Vegetatio 39: 97-114. PODANI, J. (1988): SYN-TAX III User's manual. - Abstracta Botanica 12. Suppl. 1,183 pp. SIMON, T. (1988): A hazai edényes flóra természetvédelmi érték besorolása. (Nature conservation ranks of the Hungarian vascular flora.) - Abstracta Botanica 12:1-23. SOÓ, R. (1955): La végétation de Bátorliget. -Acta bot. hung. 1: 301-334. 91