Az Alpokalja természeti képe közlemények 4. (Praenorica - Folia historico-naturalia. Szombathely, 2001)

Zagyva Tibor: Szubalpin gyepek mikológiai felmérése az Őrségi Tájvédelmi Körzetben

ZAGYVA T.: Szubalpin gyepek mikológiái felmérése az Őrségi Tájvédelmi Körzetben These problems are not that evident if mosses and flowering plants or lichens are used as indicators. On the other hand JORDAL and GAARDER (1993) found that fungi are better than vascular plants as indicators of continuity, particularly in grasslands on acid soils. Fungi are very useful as grassland indicators as long as one is able to find and identify them (BOERTMANN, 1995). / J ~ , Hygrocybe - or waxcaps - were in the past a rather neglected genus of macrofungi, at least in Hungary. It was generally accepted that the Hygrocybe species were more or less indeterminable. During forays and excursions they were often ignored or misidentified. My fascination with Hygrocybe started during the autumn of 1994, when I found several taxa new to the Hungarian funga, all in Őrség Landscape Protection Area. Since then, I have selectively collected and studied Hygrocybe species, and this monograph is the result of my efforts. RESULTS OF THE RESEARCHES AND THEIR ESTIMATION Due to the exhausted recent collections (1994-1998) the number of taxa collected from grasslands of Őrség Landscape Protection Area, has been raised from 80 to 111. Total number of taxa detected exclusively from grasslands of OLP A is 46 and from this the number recently discovered taxa is 31. Taxa represented by high, number are Hygrophoraceae and Entolömataceae. New to the Hungarian funga are: Hygrophoraceae: 19 taxa Entolömataceae: 7 taxa Tricholomataceae: 2 taxa Geoglossaceae: 2 taxa Clavariaceaè: Itaxon Six further taxa were indeterminable until yet. The so-called mycofloristical aspect of bioindication has been elaborated on the basis of the presence or absence of Hygrocybe taxa in the OLP A. In OLP A, 18 grasslands have until now been identified as being of national conservation value as Hygrocybe localities, by using the method of RALD (1985). The grasslands of ŐLPA are dependent on grazing by animals or moving and will slowly turn into scrub and later woods if mowing or grazing stops. The very low levels of dissolved nitrate and phosphate are among the main characteristics of the soil of these grasslands. Some species like H. virginea and H. conica seem to be more tolerant to fertilizers than other species. In fields abandoned for about ten years 170