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Data to the distribution and nature conservation of Sorbus bakonyensis
229-233Views:1330Sorbus bakonyensis (Jáv.) Jáv. (syn. S. majeri Barabits) is an apomictic species with a very narrow distribution range in the Bakony Mts (Hungary). Its previous occurrence data were published only from Kopasz Mt. (~Kápolna Hill, Csordás valley) above the village Márkó. It was possible to slightly expand the known area of the species to the East and to the West (Kis-Bükk Mt) of Kopasz Mt. with a detailed mapping. Due to the number of known individuals (six mature trees and a variable number of seedlings) and its small distribution range (~2 km2) the species is critically endangered. Regarding its small population, the high number of big game (wild boar, red deer) and the more and more frequent drought periods are significant risk factors. In situ preservation of the species is still a realistic goal, but ex situ propagation in tree nurseries and reintroduction to the suitable habitats of the mapped area (clearings, forest edges) are also justified.
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Notes to the vascular flora of Sopron Mountains and its foreground
187–194Views:338Records of 26 vascular plant species from the territory of Sopron Mountains (16 species) and Sopron Basin (11 species) are presented. Our field works (between 2014 and 2020) focused on some localities at the eastern and southern parts of the region. Tetragonolobus maritimus is new for the Sopron Mts, whereas Ajuga chamaepithys and Lycopsis arvensis are new for the Hungarian part of the hills. Some protected plants like Agrostemma githago, Gentianopsis ciliata and Sesleria uliginosa were rediscovered in the region. Comments about all species and their local chorology are added. A remarkable degradation process of bogs around Harka village, caused mainly by insufficient water supply of meadows, was observed. The spread of occurrences of several naturalized weed such as Aegilops cylindrica, Galium parisiense, Geranium rotundifolium, Kochia scoparia, Lepidium virginicum, Oenothera salicifolia, Sagina apetala subsp. apetala and Verbascum lychnitis was noticed. The most surprising observations refer to Galium parisiense; the spread of the species by transport had no precedent in Hungary before.
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Floristic records from Northern Hungary IV. Helleborus dumetorum from the Cserhát Hills and other occurrences
209–210Views:206In this publication, the author provides occurrences of geobotanical importance from the North Hungarian Mountains collected in the spring of 2023. First occurrence for the following species was recorded: Helleborus dumetorum from the Cserhát Hills, Lunaria annua from the Mátra Mts. and Dryopteris affinis from the Bükk Mts. Ranunculus aquatilis was found again in the Bükk Mts., where it had been collected more than 100 years ago, and Rubus saxatilis was found for the fourth time in the Zemplén Mts.
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Rubus armeniacus Focke, an unnoticed invader in the Hungarian flora
220-228Views:115The authors report on the occurrence, distribution and invasion potential of Rubus armeniacus, a bramble species of Caucasian origin, in Hungary. The first verified records of the species are from the 1990s. It has established strong populations in ruderal habitats mainly around Budapest and some other cities, whereas its competiveness is rather weak in closed non-lowland forests rich in native bramble species. In terms of conservation, it constitutes a real threat to the vegetation of Pannonian sandy habitats. The results of this study also emphasize the importance of recognising "nonnative cryptic species" for ecology and conservation biology.
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Rare vascular plants and fungi of Zalaegerszeg-Botfa (W Hungary)
95-103Views:205The present study reports the occurrence data of 3 macrofungi and 47 vascular plant taxa, collected in Zalaegerszeg-Botfa between 2006 and 2017. These new data provide valuable additional information to the distribution map of the studied species. The spatial and abundance information of both protected and non-protected species can contribute to the future biodiversity monitoring activities in order to asses and mitigate the human impact upon natural plant communities and semi-natural habitats.
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Contributions to the Atlas Florae Hungariae VII.
218-237Views:156This paper lists supplementary data to the recently published Atlas Florae Hungariae, mostly from various parts of Transdanubia and the Great Plain. The list includes 73 plant species with at least one new occurrence previously not shown on their grid-based range map, as well as data confirming old records or correcting erroneous distribution data. The actual habitats where the plants occur are characterized by their corresponding ÁNÉR codes.