B. Papp szerk.: Studia Botanica Hungarica 33. 2002 (Budapest, 2002)

Erzberger, Peter: Minor contribution to the bryoflora of the Cserhát Mts (Hungary)

Studia bot. hung. 33, pp. 41-45, 2002 MINOR CONTRIBUTION TO THE BRYOFLORA OF THE CSERHÁT MTS (HUNGARY) P. ERZBERGER Beiziger Str. 37, D-10823 Berlin, Germany The results of bryofloristical excursions into the surroundings of Cserhátszentiván, Cserhát Mts, Hungary, are presented. 78 bryophyte taxa (12 liverworts, 66 mosses) were found. Three moss species are reported as new for the area: Bryum alpinum, Fissidens arnoldii, and Tortula latifolia. Fissidens arnoldii, a rare species in Europe, endangered in Hungary, is first reported east of the Danube. A new record of Hedwigia stellata from Szanda, Cserhát Mts, is also reported. Key words: bryophytes, Bryum alpinum, Cserhát Mts, Fissidens arnoldii, Hedwigia stellata, Hungary, Tortula latifolia Although situated close to the Hungarian centres of bryophyte research, Eger and Budapest, the bryoflora of the Cserhát Mts has received less attention than other, more spectacular mountain areas nearby, e.g. the Börzsöny Mts or the Mátra Mts. Therefore, the results of two excursions to the surroundings of Cserhátszentiván are presented here. The nomenclature of liverworts follows GROLLE and LONG (2000), that of mosses KOPERSKI et al. (2000). Herbarium specimens are in the private herbarium of the author, a duplicate of the Fissidens arnoldii specimen is deposited in BP. The Cserhát Mts are situated ca 70 km NNE of Budapest. The highest elevation is Szanda hill (528 m). The valleys of the creeks Zsúnyi-patak and Cserkúti-patak, tributaries of Szuha-patak, SW of Cserhátszentiván were visited in August 2001, as well as the adjacent Bézma hill (513 m). Apart from the bryophytes growing near the creeks on rock (Barbilophozia barbata, Lejeunea cavifolia, Amblystegium tenax, Brachythecium populeum, Didymodon tophaceus, Eurhynchium crassinervium, Fissidens arnoldii, Grimmia ovalis, Hedwigia ciliata var. ciliata, Homalothecium sericeum, Leskea polycarpa, Platyhypnidium riparioides, Schistidium apocarpum, Tortula latifolia), soil and dried mud (Lophocolea bidentata, Barbula unguiculata, Fissidens taxifolius, Phascum cuspidatum, Physcomitrium pyriforme, Plagiothecium cavifolium, Pohlia melanodon, Tortula subulata var. angustata) or at the base of trees (Anomodon attenuatus, Herzogiella seligeri), some mosses (Grimmia laevigata, G. muehlenbeckii) growing on sunny siliceous rock outcrops east of Cserkúti puszta, close to Cserkúti-patak, were also collected (Table 1, first column). The second excursion to Bézma hill focused on its western slope. There are a few places where the volcanic bedrock is replaced by limestone. Thus some calcicolous species like Porella platyphylla, Anomodon viticulosus, Homomallium incurvatum could be found.