Zs. P. Komáromy szerk.: Studia Botanica Hungarica 13. 1979 (Budapest, 1979)

Kováts, Dezső; Szujkóné Lacza, Júlia: Distribution and diversity of the Hungarian Spergularia species (Caryophyllaceae)

All the three species grown more frequently in salinity habitats (Map 1, 2 and 3) but the S. rubra has shown the more adaptability to the different habitats and altitudes among them (Map 2). Besides this it should be mentioned that for example in HNP the Spergu laria species are frequent and grow in extended patches in those places where there are the pastures of horses and in wheel tracks where in more cases, the A-layer, but not very rarely in B-horizon of the soil there is erosion. Moreover necessary to note, the top-root of the Spergularis species always are mykorrhized. Probably, these species can exist in the extremely hot, dry and salinity soils by the help of mycelium of fungus. Table 3 Distribution of Spergularia species according to altitude altitude/^ in nr/ 01002003004005006007008009001000altitude/^ in nr/ 99 199 299 399 499 599 699 799 899 999 / species S. media 11 143 6 1 1 S. rubra 15 59 26 8 3 1 1 1 4 10 4 S. salina 3 35 2 1 3 3 Key to abbreviation: N= number of specimens; S= number of altitude categories S. media H' =0.4776 J=0.

2968 N = 162 S=5 S. rubra H'

=1.7012 J=0.

7095 N = 132 S=ll S. salina H'

=0.9626 J = 0. 5372 N=47 S=6 ACKNOWLEDGEMENTS: We thank Zs. Bunke and P. Zs. Komáromy for drawing of the basic map and for I. Lengyel for her help. REFERENCES A Magyar Szent Korona Országainak Helységnévtára. 1913. M. Kir. Statisztikai Hivat. Budapest, 1712 pp. BORHIDI, A. - B. THÜR Y, ZS. - ZOTTER, F. : Magyarország Helységnévtára a Középeurópai Flóra Térképezése c. kutatási téma térképhálózatának adataival (mscr. ) EHRENDORFER, F. (1973): Liste der Gefässpflanzen Mitteleuropas. - Fischer Verlag, Stuttgart, 318 pp. HÁTSEK, I. (1880): A Magyar Szent Korona Országainak Megyei Térképei. Rautmann F. Budapest, 80 pp.