• Contributions to the escaped, naturalised and potentially invasive species of the Hungarian adventive flora

  111-156

  Tamás Wirth

  Dániel Kovács

  János Csiky

  Views:

  862

  In this paper we compiled data on 157 Hungarian adventive plant species – of which 65 had not been reported from the country previously – from 47 settlements of Transdanubia and the Great Hungarian Plain. These taxa are rare, interesting or not included in the most recent list of the Hungarian neophyte species. The list includes data about many rare, occasionally escaping species (e.g. Lagurus ovatus, Salvia coccinea), taxa considered incapable of reproduction under the recent climatic conditions of the Pannonian Basin (e.g. Cupressus sempervirens, Punica granatum) or naturalised plants that may become invasive in the future (e.g. Celtis sinensis, Lonicera japonica). In the outlook we highlighted some special urban habitats (e.g. private and botanical gardens) and practices (e.g. public green space management) that endanger the native flora. We also describe their role in promoting the appearance and the expansion of alien plant species, and processes (e.g. laurophyllisation, spread of thermophile species) that will become increasingly common in the future as a result of climate change.

  PDF (Hungarian)

  705

• Contributions to the flora of the Danube River in Komárom-Esztergom and Fejér counties (Hungary)

  157–168

  Norbert Riezing

  Views:

  394

  The present paper focuses on the aquatic and Nanocyperion vegetation of the Danube flood­plain. Most of the data show the results of the surveys in 2019 at low water levels. The Nanocyperion and aquatic vegetation of the Komárom-Esztergom County section is relatively well researched com­pared to the Fejér County section which was previously poorly known. In the last decade, two rare spe­cies – Hippuris vulgaris and Hydrocharis morsus-ranae – have disappeared between Gönyű and Neszmély (Komárom-Esztergom County). In contrast, several new invasive plants have appeared: Salvinia molesta, Myriophyllum aquaticum, Limnobium laevigatum, and Crassula helmsii (first record from Hungary). Vallisneria spiralis and Elodea canadensis were detected again after several decades. Elodea nuttallii and Azolla sp. have become more widespread and abundant than previously. New and uncommon Nanocyperion species were the native and protected Lindernia procumbens and the inva­sive Lindernia dubia. New invasive plants in the studied Danube sections were: Cyperus esculentus, Euphorbia maculata, and Eleusine indica. The native Veronica catenata and Schoenoplectus triqueter have become more wide­spread than before. Polygonum graminifolium was an interesting find of open pebble surfaces in several parts of the examined area, which has no recent records in Hungary from before 2015 (published here).

  PDF (Hungarian)

  327

• Floristic data from the northern edge of the floristic region ‘Crisicum’ (NE Hungary) II.: Borsodi-ártér és Sajó–Hernád-sík

  169–186

  Kristóf Süveges

  Attila Takács

  Timea Nagy

  András Schmotzer

  János Koscsó

  Views:

  707

  In this paper we provide new floristic data for 126 species and one hybrid from the Borsod Plain and the Sajó–Hernád Interfluve (Borsod-Abaúj-Zemplén county, Northeast Hungary) observed between 2006 and 2019. A significant proportion of the data is related to gravel mining activities in the area. We present new localities for rare or sporadic native taxa in Hungary (e.g. Chenopodium murale, Ch. rubrum, Lycopsis arvensis, Chamaenerion dodonaei, Reseda luteola, Senecio viscosus, Gnaphalium luteoalbum, Cyperus glomeratus) as well as rare or sporadic adventive weeds (e.g. Lepidium densiflorum, L. virginicum). We publish additions to the distribution of several legally protected species (e.g. Pseudolysimachion longifolium, Nymphoides peltata, Epipactis tallosii, Leucanthemella serotina). Presence of some taxa is remarkable regarding to the flora of the whole area of Crisicum (Sherardia arvensis, Thymelaea passerina, Silene conica) or the Great Hungarian Plain (Monotropa hypopitys).

  PDF (Hungarian)

  390

• Notes to the vascular flora of Sopron Mountains and its foreground

  187–194

  Dávid Schmidt

  Győző Haszonits

  Views:

  525

  Records 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.

  PDF (Hungarian)

  319

• Cardamine occulta Hornem. in Hungary, and other stowaways of the ornamental plant trade

  195–214

  Attila Takács

  Tamás Wirth

  András Schmotzer

  Gergely Gulyás

  Sándor Jordán

  Kristóf Süveges

  Viktor Virók

  Lajos Somlyay

  Views:

  904

  During the study of the weed flora of garden centers in Hungary (among 2017–2020), remarkable populations of Cardamine occulta Hornem., a new alien for the Hungarian flora were found. C. occulta was present altogether in 51 of the 53 visited sites. Dominantly the regularly irrigated and continuously moist microhabitats (pots, containers, muddy surfaces of geotextile-covered beds etc.) were colonized. During the revision of our recently collected specimens, deposited in JPU and DE herbaria as Cardamine hirsuta L., further individuals proved to identical with this till overlooked species. One of them (27.08.2004., Heves county: Eger [8088.3; 8188.1], coll. by A. Schmotzer, deposited in DE collection) proved to the third documented occurrence in Europe, comparing to the accessed literature data. Eclipta prostrata (L.) L. and Urtica membranacea Poir. are also new aliens for the Hungarian flora. Several introduced individuals of these taxa were found in containers of imported thermophilous woody ornamentals at 4 and 2 sites, respectively. Tens of individuals of Eclipta prostrata were also found in a sapling-bed at another site. New populations of scarce or rare Euphorbia prostrata Aiton, E. serpens Kunth and Veronica peregrina L. were also documented.

  PDF (Hungarian)

  590

• Black poplar riparian forests (Carduo crispi-Populetum nigrae) along the river Drava

  215–238

  Balázs Kevey

  Sándor Csete

  Views:

  300

  The objective of this study is to analyse the phytosociological characteristics of riverside black poplar forests on the flood plain of the Drava River (southwestern Hungary) by means of 25 relevés. Based on the results of traditional analyses (vegetation structure and attributes of constituent species), their ecological niche and place in plant succession, those streamside forests can be identified with the plant association Carduo crispi-Populetum nigrae described from the Szigetköz region (northwestern Hungary). Stands of this association develop from purple willow scrubs (Rumici crispi-Salicetum purpureae), and are located at an elevation about one and a half meters lower than those of its successor vegetation unit, the white poplar association (Senecioni sarracenici-Populetum albae).

  PDF (Hungarian)

  226

• Contributions to the Atlas Florae Hungariae XI.: Data from the Tokaj–Zemplén Mts and its surroundings

  239–241

  Ildikó J. Türke

  László Lontay

  József Serfőző

  Tamás Zsólyomi

  Attila Drozd

  Gábor Pelles

  Views:

  290

  This paper is the 11th in the series aiming to contribute data to the distribution maps published recently in Atlas Florae Hungariae. Our records were collected from the Tokaj-Zemplén Mts and the Bodrogköz region. The dataset includes 325 occurrence data of 75 vascular plant taxa from 53 flora mapping unit. Most of the represented taxa are legally protected, e.g. Aconitum var­iegatum, Alchemilla subcrenata, Aster amellus, Cardamine glanduligera, Centaurea triumfettii, Cephalan­thera damasonium, Dianthus deltoides, Epipactis pontica, Gentianopsis ciliata, Orchis morio, Orthilia secunda, Petasites albus, Platanthera bifolia, Polygala major, Prunella grandiflora, Pulsatilla grandis, Rosa pendulina, Salix aurita, Scilla kladnii and Stipa dasyphylla.

  PDF (Hungarian)

  310

Short communications

• Leucojum vernum at the Súri-Bakonyalja and overview of its distribution in the Bakony Region

  242-246

  Norbert Bauer

  Views:

  511

  In Hungary Leucojum vernum is considered a plant species of montane character, distribu­ted predominantly in Transdanubia. Apart from some isolated localities (Zalaszántó Basin Mts, Tapolca Basin), the occurrences of the species are mainly confined to the region “Magas Bakony” and its pe­riphery within the Hungarian Middle Mts. In the spring of 2020 a large population was discovered by the author in the region “Súri-Bakonyalja”, which significantly expands the known local distribution range of the species. The new population, together with other phytogeographically significant species (e.g. Anemone nemorosa, Corydalis intermedia, Veratrum album), was found in a poorly explored val­ley system (Kisbér village: Báró-erdő). Based on all literature and herbarium records, the local distribu­tion range of L. vernum is surveyed.

  PDF (Hungarian)

  288

• A new, remarkable population of Epipactis placentina found near Parádsasvár village (Mátra Mts, NE Hungary)

  247–248

  György Tóth

  Gábor Magos

  Miklós Molnár

  Miklós Csábi

  Views:

  362

  The present paper surveyes the Hungarian records of Epipactis placentina Bongiorni & Grünanger, which is the rarest Epipactis species in Hungary. Currently, E. placentina is known only at Parádsasvár village in the country. This population (ca. 40 generative individuals) was found in 2019, in an old beech forest, in northern exposition.

  PDF (Hungarian)

  276

• ×Pseudorhiza bruniana in the Harghita Mts (Romania, E Carpathians)

  249–250

  Miklós Nyisztor

  Views:

  238

  The discovery of a single individual of ×Pseudorhiza bruniana (Brügger) P.F.Hunt (Dactylorhiza maculata (L.) Soó × Pseudorchis albida (L.) Á. Löve & D. Löve) in a fen meadow of the Harghita Mts (Romania, East Carpa­thians) is briefly discussed. This is the first record of the nothotaxon in Romania, as well as in Central Europe.

  PDF (Hungarian)

  248

• Hybrid leopard’s bane (Doronicum ×sopianae) in the West-Mecsek Mts (SW Hungary)

  251–252

  István Zsolt Tóth

  Views:

  374

  The hybrid of leopard’s bane (Doronicum orientale Hoffm.) and the Hungarian leopard’s bane (Doronicum hugaricum (Sadler) Rchb.f.) was discovered by Tamás Nendtvich in the Mecsek Mts over Pécs in the 1820’s. During the past two centuries several researchers confirmed the occurrence of this plant in the region. The occurrences of the hybrid ever known are concentrated in a relatively limited range, and the single currently known occurrence is on “Zsuppon-parlag”.  In this paper, I report a new occurrence, found on 16th April 2020, close to the village of Kővágószőlős, which is 8 km away from the single currently known locality. I found only one flowering specimen, as well as five vegetative individ­uals with leaf rosettes. The parental species grew only 50 cm away from each other. Here, I provide a detailed morphological description about the flowering individual, and a vegetation relevé of the ac­companying species in a 10×10 m quadrat around the hybrid plant.

  PDF (Hungarian)

  239

• Escaping of Euphorbia myrsinites from cultivation in Eger (E Hungary)

  253–256

  Peregrym Mykyta

  Views:

  231

  Euphorbia myrsinites L. (Euphorbiaceae) is a well-known ornamental plant with native dis­tribu­tion around the Mediterranean Basin, the Black Sea, the Caucasus region and Minor Asia. Its es­cape from cultivation and its naturalization in Western and Central Europe as well as in North America was reported in many cases. In Hungary, the casual escape of E. myrsinites has been documented more than fifty years ago and new observations were recently reported from different regions of the country. Here, I discuss a new record of the species from the town of Eger (E Hungary). The obtained data allow considering E. myrsinites as a locally naturalized species in the flora of Hungary. According to standard­ized criteria, the species may be able for local invasions too, but further observations are needed to accurately determine its present status in Hungary.

  PDF (Hungarian)

  230

• New occurence of the Daisy-leaf moonwort (Botrychium matricariifolium) in the Matra Mts (Northern Hungary)

  257–258

  Sándor Bordé

  Views:

  385

  12 individuals of Botrychium matricariifolium (Retz.) A. Braun was found in the Matra Mts on 12. 06. 2020, on the edges of a mountain meadow. There are no historical or current records for this species from this area. The species formerly was listed as extinct species in Hungary. Recently, there are only two observations in the country; a single individual was found in the Mecsek Mts in 2008 (disappeared in the next year), and a seemingly stable population was found in the Kőszeg Mts in 2016.

  PDF (Hungarian)

  294

• Literature reviews

  259-260

  Anon.

  Views:

  156

  Kovács J. A. (2019): Székelykeresztúr vidékének növényzeti öröksége. – Tortoma Könyvkiadó, Barót, 780 pp.

  Király G. & Takács G. (2020): A magyar Fertő edényes flórája. – Rence 3., Fertő-Hanság Nemzeti Park Igazgatóság, Sarród, 430 pp.

  PDF (Hungarian)

  108