Current results of Bryophyte Mapping of Börzsöny Mts (Hungary)

In 1966, about half a century ago, László Vajda published his account of the Börzsöny Mts (A Börzsöny-hegység mohaflórája), in which he reports data on 316 bryophyte species, the results of his exploration of the region in cooperation with Ádám Boros. Later Orbán & Vajda (1983) mention another 9 species from this area. Around this time there is an intermission in the systematic bryofloristic research of the Börzsöny Mts. In the 1990-s, P. Erzberger and B. Papp took up again the bryological exploration of the area. At present, systematic recording is carried out in 19 grid cells of the Central European Mapping Scheme (KEF). 7 squares lie nearly completely in the mountain region, whereas 12 squares belong in part to neighbouring landscapes. As a consequence of systematic grid-cell based recording, research is also carried out in formerly neglected parts of the region. During our field work we focus on some formerly underexplored special sites (e.g. abandoned quarries, wetlands) and outcrops of locally rare bedrock (peripheral loess deposits, tertiary limestone). In the case of some moss genera (Bryum, Fissidens, Grimmia, Racomitrium, Schistidium) which were revised by P. Erzberger, collection of herbarium data in the Botanical Department of the Hungarian Natural History Museum preceded the field work. Results: In the 19 mapped grid cells taken together, we collected more than 3000 recent floristic data in a database. This corresponds to nearly 2000 localized data points, of which more than 1800 fall within the range of the mountains. The number of taxa in square 8079.2 (Királyháza) exceeds 200. More than 150 taxa each were recorded from 8079.1 (Perőcsény) and 8079.4 (Nagy-Hideg-hegy). The number of taxa which were first recorded after 1990 in the Börzsöny Mts exceeds 75. Among them three taxa are new to Hungary: Fissidens crispus (8079.2) was found by herbarium revision, whereas Brachythecium curtum (8079.4) and Crossidium squamiferum var. squamiferum (8279.2) were detected during field work. Further remarkable taxa first documented include Anacamptodon splachnoides (Endangered EN), Bryum archangelicum (Data deficient DD), Bryum intermedium (DD), Bryum mildeanum (DD), Dicranum viride (Vulnerable VU), Fabronia pusilla (EN), Fissidens arnoldii (VU), Fissidens bambergeri (Not Evaluated NE), Frullania inflata (EN), Grimmia decipiens (EN), Grimmia lisae (VU), Jungermannia atrovirens (DD), Pseudoleskea saviana (DD-va), Pyramidula tetragona (EN), Racomitrium aciculare (DD), Racomitrium affine (DD), Rhynchostegiella curviseta var. laeviseta (NE), Rhynchostegiella teneriffae (VU), Syntrichia caninervis var. gypsophila (DD). On the other hand, at present there are about 75 species (29 liverworts and 46 mosses) reported in the accounts of Vajda (1966) and Orbán & Vajda (1983) of which we have not yet found extant occurrences

ANACAMPTODON SPLACHNOIDES (AMBLYSTEGIACEAE): HUNGARIAN POPULATIONS OF A MOSS SPECIES WITH A PECULIAR HABITAT

Twenty-seven colonies of Anacamptodon splachnoides, a rare and endangered species throughout its distributional range, and protected by law in Hungary, were discovered in the Transdanubian Mountain Range, Balaton Uplands, Vértes and Gerecse Mts, as well as in the North Hungarian Mountains, Börzsöny Mts. Th ey grow in decaying hollows of Quercus cerris fi lled with rain water (dend ro tel ma) or in wet holes without standing water. Th e sites are enumerated, the size of populations is estimated, and distribution maps, illustrations and a short description of the species are provided

The bryoflora of the Pinka Gorge

The River Pinka originates in eastern Austria and reaches the territory of Hungary at first near Felsőcsatár. The river cuts through the Nagyvilágos Hill forming a gorge. This unique landscape is home to special flora and fauna. The authors have been studying the bryophyte diversity and distribution patterns in the Pinka Gorge in April, July, and August of 2016 and in March, April and July of 2017. The examined area was ca. 2500 m long and maximum 60 m wide along the right side of the river. During the field study, altogether 140 bryophyte species – 115 Bryophyta and 25 Marchantiophyta species – were found in this highly valuable Natura 2000 territory. The main reason for the quite high bryophyte diversity may be the several different habitat types that can be found in this area. Authors succeeded in finding occurrences of several vulnerable and endangered species, such as Isothecium myosuroides Brid. (EN), Porella arboris-vitae (With.) Grolle (EN), Amphidium mougeotii (Bruch & Schimp.) Schimp. (VU), Bryum pallens Sw. ex anon. (VU), Leiocolea collaris (Nees) Schljakov (VU), Nowellia curvifolia (Dicks.) Mitt. (VU), Eurhynchium flotowianum (Sendtn.) Kartt. (VU), Orthotrichum patens Bruch ex Brid. (VU), Ulota bruchii Hornsch. ex Brid. (VU). The results emphasize the importance of further research in this area

Plagiothecium latebricola, new member of the Hungarian bryoflora

During the systematic fi eld studies aimed at exploring the recent bryophyte fl ora of the Kőszeg Mts and in the framework of grid-cell based bryophyte recording, Plagiothecium latebricola Schimp. was discovered in the Kőszeg Mts. Th e size of the population is estimated and the habitats are characterized. Illustrations, a short description and a taxonomic key are provided to distinguish it from the other species of Plagiothecium in Hungary. Although P. latebricola might possibly be found in other parts of the country as well, it is known only in one location so far. Consequently, the species should be considered as critically endangered (CR)

Keys for the identification of bryophytes occurring in Hungary

Keys for the identification of all bryophytes presently known to occur in Hungary are presented. The three groups: Hornworts (2 taxa), Liverworts (149 taxa), and Mosses (541 taxa) are treated separately. Bryophyte identification using these keys proceeds in two steps: 1. Artificial keys to the genera, 2. Keys from genera to species, arranged systematically according to recent taxonomy. Each species of the Hungarian bryophyte flora is assigned to one of six frequency classes (very common: cc, common: c, widespread: w, rare: r, very rare: rr, not seen: n.s.). A glossary explaining the technical terms used in the keys and an index of genera are included

Campylopus subulatus Schimp. ex Milde and Fossombronia incurva Lindb. are not members of the Hungarian bryophyte flora

Correction of Errata in ABPA 5(1): 33 (2017): Erzberger et al.: Remarkable finds of bryophytes in Hungary during the last two years (2015–2017)