Current results of Bryophyte Mapping of Börzsöny Mts (Hungary)

摘要

In 1966, about half a century ago, László Vajda published his account of theudBörzsöny Mts (A Börzsöny-hegység mohaflórája), in which he reports data on 316udbryophyte species, the results of his exploration of the region in cooperation withudÁdám Boros. Later Orbán & Vajda (1983) mention another 9 species from thisudarea. Around this time there is an intermission in the systematic bryofloristicudresearch of the Börzsöny Mts. In the 1990-s, P. Erzberger and B. Papp took upudagain the bryological exploration of the area. At present, systematic recording isudcarried out in 19 grid cells of the Central European Mapping Scheme (KEF). 7udsquares lie nearly completely in the mountain region, whereas 12 squares belongudin part to neighbouring landscapes. As a consequence of systematic grid-cell basedudrecording, research is also carried out in formerly neglected parts of the region.udDuring our field work we focus on some formerly underexplored special sites (e.g.udabandoned quarries, wetlands) and outcrops of locally rare bedrock (peripheraludloess deposits, tertiary limestone). In the case of some moss genera (Bryum,udFissidens, Grimmia, Racomitrium, Schistidium) which were revised by P. Erzberger,udcollection of herbarium data in the Botanical Department of the Hungarian NaturaludHistory Museum preceded the field work. Results: In the 19 mapped grid cellsudtaken together, we collected more than 3000 recent floristic data in a database.udThis corresponds to nearly 2000 localized data points, of which more than 1800udfall within the range of the mountains. The number of taxa in square 8079.2ud(Királyháza) exceeds 200. More than 150 taxa each were recorded from 8079.1ud(Perőcsény) and 8079.4 (Nagy-Hideg-hegy). The number of taxa which were firstudrecorded after 1990 in the Börzsöny Mts exceeds 75. Among them three taxa areudnew to Hungary: Fissidens crispus (8079.2) was found by herbarium revision,udwhereas Brachythecium curtum (8079.4) and Crossidium squamiferum var.udsquamiferum (8279.2) were detected during field work. Further remarkable taxaudfirst documented include Anacamptodon splachnoides (Endangered EN), Bryumudarchangelicum (Data deficient DD), Bryum intermedium (DD), Bryum mildeanumud(DD), Dicranum viride (Vulnerable VU), Fabronia pusilla (EN), Fissidens arnoldiiud(VU), Fissidens bambergeri (Not Evaluated NE), Frullania inflata (EN), Grimmiauddecipiens (EN), Grimmia lisae (VU), Jungermannia atrovirens (DD), Pseudoleskeaudsaviana (DD-va), Pyramidula tetragona (EN), Racomitrium aciculare (DD),udRacomitrium affine (DD), Rhynchostegiella curviseta var. laeviseta (NE),udRhynchostegiella teneriffae (VU), Syntrichia caninervis var. gypsophila (DD). On theudother hand, at present there are about 75 species (29 liverworts and 46 mosses)udreported in the accounts of Vajda (1966) and Orbán & Vajda (1983) of which weudhave not yet found extant occurrences.