B. Papp szerk.: Studia Botanica Hungarica 38. 2007 (Budapest, 2007)

Németh, Csaba: Data on the distribution of some rare alpine-boreal bryophytes in the Vértes Mts (Hungary)

Studia bot. hung. 38, pp. 59- 70, 2007 DATA ON THE DISTRIBUTION OF SOME RARE ALPINE-BOREAL BRYOPHYTES IN THE VÉRTES MTS (HUNGARY) CS. NÉMETH H-2870

Kisbér, Sport u. 19, Hungary; nemeth-cs@freemail.hu Unusual assemblage of rare alpine-boreal bryophytes and glacial relict vascular plant species was investigated on steep dolomite north facing rock walls in the southern and eastern Vértes Mts, west-central Hungary. Documentation of the microhabitats revealed the presence of bryophytes Anomodon rostratus, Leiocolea collaris, Myurella julacea, Orthothecium intricatum, Pedinophyllum interruptum, and Plagiobryum zierii. Key words: distribution maps, rare bryophytes, Vértes Mts INTRODUCTION Fieldwork conducted in the Vértes Mts in the past two years, in continuation of ongoing surveys on the distribution of bryophytes, resulted in new floristical data. This effort is part of a network of similar works within the country. Several recent publications have already made important additions to the better knowledge of the actual distribution of bryophytes (PURGER et al. 1997, SZÖVÉNYI et al 2001, PAPP and RAJCZY 1996, 1999, 2000, PAPP and ERZBERGER 2000,2003, PAPP et al. 2000,2003), combining data from new collections and consulting specimens from earlier collections. The present study provides a series of new data on the actual distribution of some rare species at national level. MATERIAL AND METHODS Research area Part of the Transdanubian Mountain Ranges, the Vértes Mts is a SW-NE running smaller range consisting predominantly of Upper Triassic limestone and dolomite. From the approximate line of the villages Csókakő, Kőhányás, and Szárliget it may be divided