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• Contributions to the Atlas Florae Hungariae IX.

  253–256

  Csaba Molnár

  Győző Haszonits

  Balázs Pintér

  Márton Korda

  Mykyta Peregrym

  Krisztina Nótári

  Ákos Malatinszky

  Miklós Toldi

  Ábel Beránek

  Views:

  291

  The current paper is the 9^th in the series aiming to provide new data to the distribution maps of Atlas Florae Hungariae. Data of 734 vascular plant taxa (from 222 flora mapping quadrats) are pre­sen­ted in this study. The new localities are spread across nearly the entire country; however, most of the data are from the North Hungarian Mts, the northern part of the Danube-Tisza Interfluve, the southern edge of Han­ság, alongside River Maros and the Hortobágy. Altogether, 1632 new data records are presented in this pa­per. The list mainly contains rare and locally important native species, as well as species with un­cer­tain na­ti­ve/alien status (e.g. Allium ursinum, Chamaecytisus triflorus, Cotoneaster niger, Cyperus pan­no­ni­cus, Elatine tri­andra, Eleocharis acicularis, Eleocharis ovata, Erodium hoefftianum, Geranium lucidum, Glo­bu­laria punc­ta­ta, Hippuris vulgaris, Hottonia palustris, Lindernia procumbens, Marrubium vulgare, Ononis pu­silla, Oro­banc­he bartlingii, Orobanche cernua, Pisum elatius, Polycnemum majus, Polygonum gra­mi­ni­folium, Ribes nigrum, Scho­enoplectus triqueter, Verbascum ×denudatum, Verbascum ×vidavense, Viola ca­ni­na subsp. schultzii). We report new localities of expanding alien species (e.g. Amaranthus deflexus, Ar­te­mi­sia annua, Euphorbia maculata, Helminthia echioides, Hordeum jubatum, Impatiens glandulifera, Ipomoea pur­purea, Mahonia aquifolium, Panicum riparium, Robinia viscosa, Rudbeckia hirta, Veronica peregrina, Yuc­ca filamentosa) and mention a few rare, successfully “surviving” alien plants with nature conservation va­lue (e.g. Acorus ca­la­mus, Monochoria korsakowii). Moreover, occurrences of common plants are presen­ted when new to the Atlas Floraea Hungariae (e.g. Bromus hordeaceus, Symphytum officinale, Vicia tetrasperma).

• Data to the flora and vegetation of Hungary I.

  89-104

  Zoltán Bátori

  László Erdős

  Csaba Tölgyesi

  Eszter Aradi

  Views:

  79

  The present study reports the occurrence data of 54 vascular plant taxa, collected at various localities in Hungary during floristic, vegetation and ecological field surveys between 2000 and 2013. In some cases, phytosociological relevés were prepared to characterize the local coenological properties of the species. Many of these species are included in the „Red list of the vascular flora of Hungary” (e.g. Carthamus lanatus, Sedum caespitosum, Spiranthes spiralis and Trifolium micranthum). Some of them (e.g. Apium repens, Dianthus diutinus, Epipactis bugacensis and Ranunculus psilostachys) are rarities in the whole country. Our findings suggest that conservationists should focus not only on the maintenance of semi-natural habitats but also on the investigation of secondary habitats (e.g. river embankments, temporary pools on arable fields) in order to maintain the total species diversity of the landscape.

• Contributions to the flora of railway-side pioneer habitats on Tiszántúl region

  86–101

  Szabolcs Kis

  Views:

  400

  Verges have considerable importance to preserve diversity in arable landscape. The modernized railway embankments are a great surface to the spread of native pioneer or adventive (invasive) plant species. The new data are about the flora of railway embankments mainly from Tiszántúl region. I present some species found on railway verges (e.g. Equisetum ×moorei, Equisetum ramosissimum, Lycopsis arvensis, Euphorbia maculata, Lepidium densiflorum Tragus racemosus, Vulpia myuros). An especially important new data is the refinding of Galium humifusum in Hungary. Locally non-native and adventive species can use the blanketing materials (sand or gravel) of railway embankments as dispersal corridor and colonize them. The railwayside habitats could contribute to the conservation of rare native pioneer species.

• The Sea milkwort (Glaux maritima) in the Carpathian Basin

  10-20

  Gábor Lendvai

  Views:

  315

  Sea milkwort (Glaux maritima L.) is a broadly distributed species in the northern hemi­sphere, inhabiting primarily maritime habitats from the arctic to the temperate zones. It is also found inland in semi-arid and arid regions with saline soils. Its status in the Carpathian Basin has become very uncertain owing to the lack of known extant populations. To evaluate its current status, I review all known occurrences within the Carpathian Basin where this species has been recorded or collected, and report five new localities of the species in Hungary, all in the western part of the Great Hungarian Plain. I also analyze habitat relationships of the species using traditional phytosociological relevés. Review of species distribution data in the Carpathian Basin revealed that sea milkwort has undergone severe reduction in population number and disappeared from many localities. Currently, only a few populations can be found in this region: the Northern Carpathians in Slovakia and the western part of the Great Plain in Hungary. In Transylvania (Romania), only a single population has been reported recently suggesting the critical status of the species there. Features of the habitats confirm the halophytic nature of the species and its fidelity to wet saline meadows. Its common accompanying species are mostly broadly distributed, salt-tolerant plants. Heterogeneity of the samples in species composition suggests that sea milkwort is not a habitat-specialist species. Several of its common associates in Hungary are also found in sea milkwort habitats in Mongolia, Asia and Utah, North America. Based on the available evidence, sea milkwort shall be considered a severely threatened plant in the Carpathian Basin. Characteristics of the vegetation in its habitats do not explain its occurrence in mountainous environments.

• Contributions to the Atlas Florae Hungariae VI.

  87-102

  Csaba Molnár

  Győző Haszonits

  Ákos Malatinszky

  Kristóf Süveges

  Lajos Balogh

  Timea Nagy

  Soma Horváth

  Katalin Hudák

  Views:

  225

  The current paper is the sixth one in the series aiming to contribute with new distribution data to the distribution maps published recently in Atlas Florae Hungariae. Current occurrence data of 389 vascular plant taxa from 117 flora mapping quadrates (CEU) are provided. New records are indicated from different regions of Hungary; however, most occurrences are located in the North Hungarian Mts and from the city of Szolnok and Western Hungary. Occurrence data of rare native taxa (including data of Equisetum fluviatile, Galium rivale, Gladiolus imbricatus, Hypericum maculatum, Persicaria bistorta, Potentilla inclinata, Ranunculus lingua, Rhinanthus rumelicus, Trifolium fragiferum subsp. bonannii, Viola pumila), rare or data-deficient alien taxa (e.g. Amaranthus blitum subsp. blitum, Cymbalaria muralis, Elymus elongatus, Euphorbia peplus, Heracleum sosnowskyi, Impatiens balfourii, Lepidium densiflorum, Rhus typhina, Telekia speciosa), as well as frequent but more or less underrepresented taxa (e.g. Carex otrubae, Chenopodium polyspermum, Crepis tectorum, Filipendula vulgaris, Petrorhagia prolifera, Poa palustris) are also enumerated. In case of the most common species we provided the CEU codes only.

• Contributions to the flora of the Szuha watershed and adjacent territories (NE Hungary)

  27-67

  Péter Szentgyörgyi

  Gábor Bátori

  Views:

  289

  This paper presents new floristic data of 415 taxa from the Putnok Hills and Sajó Valley microregions (Northern Hungary). Records were collected between 1991 and 2021. In the first part new occurrences of legally protected (e.g., Cypripedium calceolus, Iris aphylla subsp. hungarica, Lycopodium clavatum, Thalictrum aquilegiifolium, Pyrola rotundifolia, Scorzonera purpurea, Stipa pulcherrima) and not protected but locally rare or data-deficient species (e.g., Myosurus minimus, Thalictrum simplex, Sisymbrium loeselii, Camelina microcarpa, Potentilla collina, Trifolium striatum, Geranium pratense, G. dissectum, G. divaricatum, Viola pumila, Epilobium roseum, Myriophyllum spicatum, Pimpinella major, Berula erecta, Trinia ramosissima, Centaurium pulchellum, Nepeta cataria, Limosella aquatica, Veronica scutellata, Orobanche arenaria, Utricularia vulgaris, Galium elongatum, Cephalaria transsylvanica, Dipsacus fullonum, Xanthium saccharatum, Alisma lanceolatum, Elodea canadensis, Potamogeton pectinatus, P. berchtoldii, P. lucens, P. nodosus, Zannichellia palustris, Sisyrinchium bermudiana, Melica picta, Elymus elongatus, Leersia oryzoides, Typha laxmannii, Eriochloa villosa) are presented. This chapter contains data on 246 species from which 8 are new for the flora of the Tornense flora region and 47 for its subregion, the Putnok Hills. Further contributions to the distribution data of Atlas Florae Hungariae are presented in Electronic Appendix. This section contains raw occurrence data of 169 species.

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

  157–168

  Norbert Riezing

  Views:

  266

  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).

• Data to the flora of Sopron Hills and its foreground

  239-242

  Dávid Schmidt

  Krisztina Nótári

  Márton Korda

  Views:

  100

  The present study reports additional records to the flora of Sopron Hills and Sopron Basin. The records were collected during our field surveys between 2010 and 2014 and contain occurrence data of 19 vascular plant taxa. The genus Orobanche is represented by 5 species. Two taxa are new for the flora of Sopron Hills (Amaranthus blitoides, Orobanche teucrii), others are interesting because of their old or uncertain indication (e.g. Dianthus superbus, Myosotis sparsiflora, Orobanche lutea, Orobanche purpurea).

• Floristic records from Northern Hungary II. North Cserehát and Upper Bódva valley

  31–48

  András Vojtkó

  Tünde Farkas

  Views:

  291

  This paper presents new floristic data of 123 taxa from the regions of North Cserehát and Upper Bódva valley (Northern Hungary). Records were collected between 1995 and 2020. New occurrences of legally protected (e.g., Dactylorhiza incarnata, Eriophorum angustifolium, Lycopodium clavatum) and not protected but locally rare or data-deficient species (e.g., Artemisia annua, Carex remota, Cirsium pannonicum, Cyperus fuscus, Genista pilosa, Melampyrum cristatum Ranunculus flammula, Scorzonera purpurea, Silene noctiflora) are presented.

• Short communications

  365-370

  Balázs Pintér

  Zoltán Barina

  Péter Szűcs

  Zoltán Börcsök

  Orsolya Kámán

  András Vojtkó

  Ta Juhász

  Anna E. Vojtkó

  Zoltán Bátori

  János Csiky

  Péter Erzberger

  Dániel Kovács

  Judit Deme

  Éva Irén Bőhm

  Gábor Sramkó

  Views:

  129

  1. Occurrence of Apium repens (Jacq.) Lagasca in Budapest (Hungary)

  2. Occurrence of Riccia glauca L. and Riccia sorocarpa Bisch. in town of Barcs

  3. Occurrence of Allium victorialis L. in Gorge Vargyas (Cheile Vârghişului, Central Romania)

  4. Huperzia selago (L.) Bernh. on the plateau of Bükk Mts. (NE Hungary) and other floristic records

  5. Campylopus pyriformis (Schultz) Brid. in the Western Mecsek Mts. (South Transdanubia, Hungary)

  6. Current occurrence of Echinops ruthenicus (Fisch.) M.Bieb. in Sződliget (northern central Hungary)

  7. The occurrence of Artemisia alba Turra in Kalotaszeg region (Cluj county) of Romania, and comments on Molnár et al. (2014)

• Contributions to the flora of Baranya and Tolna counties III.

  39-50

  István Zsolt Tóth

  Views:

  128

  During the last four years (2014–2017) that have passed since my last publication, I have been collecting 25 000 new floristic data for the territory of the Danube–Drava National Park. The most valuable and interesting records of 116 taxa are presented here, e.g. those of the strictly protected Digitalis ferruginea and Paeonia banatica, and the protected species Polystichum lonchitis, Dryopteris affinis, Doronicum orientale, Helleborus dumetorum, Corydalis intermedia, Spiraea media, Veratrum nigrum. New records of not protected but rare species, such as Lycopsis arvensis, Silene dichotoma, Teucrium botrys, Thladiantha dubia, Vicia lutea, Hypochoeris radicata are also enumerated. Some curiosities are mentioned as well, including the sizes of the biggest (and probably the oldest) Crataegus monogyna, Hedera helix, Ruscus hypoglossum and Ruscus aculeatus individuals that were found during my field work.

• The flora of the Sárvíz plain (Mezőföld, Hungary)

  207–226

  Gábor Lendvai

  Views:

  311

  In this paper, I present chorological data on the plants growing on the alluvial plain of the Sárvíz river in eastern Transdanubia, Hungary. Species characteristic of reed and sedge marshes, salt lakes and alkali flats, as well as remnants of hardwood forests and mesoxeric grasslands are listed in the enumeration. Since 2004, I have confirmed the occurrence of 50 species previously not recorded in the study area. Here, I report the species names, followed by data on the locality: the name of the township, the geographical name of the locality, and the code(s) of both grid systems, the Central European Flora Mapping System (CEU) and the UTM. Sites where I observed or collected the species after 2004 are in bold. Names of species new to the study area are underlined.

• Data to the flora and geobotany of Kisalföld (Lesser Plain) region, NW Hungary

  235-253

  Gergely Király

  Gábor Takács

  Angéla Király

  Views:

  128

  Lesser Plain (Kisalföld) – divided among three countries (Austria, Hungary and Slovakia) – is the westernmost part of the lowland areas of the Pannonian Basin. Present paper provides a résumé of the authors’ floristic work from the Hungarian part of the area, describing localities, habitats and regional phytogeography of 57 taxa altogether. The localities were listed according to the classification of small geographic regions. The most important results of the study are as follows:

  • We recorded 5 species new to the region (Brachypodium rupestre, Bromus ramosus, Hypericum dubium, Lathyrus sphaericus, Tordylium maximum); all of them can be considered as submontane-montane elements.
  • We reported several species new to a microregion within the Lesser Plain: montane species in the W-SW part of the Plain (Cirsium rivulare, Dryopteris dilatata, Equisetum telmateia), loess-connected species mainly on the Moson Plateau (Agropyron cristatum, Allium atroviolaceum, Euphorbia salicifolia, Viola ambigua); and occurrences of species on sandy soils near the Lake Fertő (Draba nemorosa, Stipa pennata).
  • We explained the known localities of several salt tolerant species (e.g. Carex divisa, Crypsis alopecuroides, Juncus maritimus, Limonium gmelinii, Suaeda pannonica) from the Lake Fertő and its surroundings.
  • We assessed the role of the forest management and nature conservational actions in the distribution of some important tree species (Acer tataricum, Betula pubescens, Fraxinus ornus, Quercus petraea, Salix pentandra).
  • We discussed the regional nature conservational status of several protected and/or threatened species (e.g. Allium carinatum, Allium suaveolens, Carex strigosa, Hottonia palustris, Potamogeton coloratus, Stellaria palustris) in the Lesser Plain.

  The activities of the authors in the surroundings of Győr were supported by monitoring results gained during the Hungarian Little Plain project (LIFE08 NAT/H/000289).

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

  111-156

  Tamás Wirth

  Dániel Kovács

  János Csiky

  Views:

  545

  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.

• On the former occurrence of Calla palustris in Hungary

  200-210

  János Csiky

  Views:

  1700

  The origin of a more than 150 years old herbarium specimen of Calla palustris L. stored in JPU is reconsidered in this study. According to the information on its label, the specimen was collected in 1856 at Lake Velence, close to Székesfehérvár city (central Hungary). Some Hungarian botanists are skeptical about the authenticity of this record. Based on the current occurrences of some remarkable swamp species (e.g. Carex pseudocyperus, Liparis loeselii, Sphagnum spp.) and habitat types (e.g. willow carrs and swamp forests) at the lake, as well as the habitat preference of bog arum, there is no reason to question the former occurrence of the species here or even in other Hungarian localities. The content and accuracy of the examined voucher meet the expectations of floristic data. However, in the absence of recent data the species can be considered extinct from Hungary.

• Flowering phenology and distribution pattern of Lizard Orchids (Himantoglossum)

  157-167

  Éva Biró

  Judit Bódis

  Views:

  103

  Hybridization is very rare between the species of Himatoglossum genus, despite the fact that it is common in other orchid genera. The reasons for this can be the lack of overlapping distribution areas or the different flowering period of the species. In the paper distribution and flowering data of Himantoglossum species are presented from herbarium sheets or references (sources paper-based or internet). We collected 1001 precisely dated flowering records of 12 species. In case of 6 species (H. adriaticum, H. caprinum, H. comperianum, H. hircinum, H. jankae, H. robertianum) we had sufficient records to calculate the average flowering day and blooming length. According to the collected data the distribution of the species are overlapping except for H. formosum, H. galilaeum and H. metlesicsianum. Studying 55 species pairs, insignificant differences in blooming time were only at 21 species pairs, among them only 5 (H. comperianum - H. caprinum, H. montis-tauri - H. comperianum, H. hircinum - H. adriaticum, H. montis-tauri - H. caprinum és H. jankae - H. calcaratum) have overlapping distribution area. Data on hybridization could be found only at three species pairs among them. From the results we can conclude that in the case of Himantoglossum genus the rarity of hybridization is mostly due to the phenological isolation.

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

  253–256

  Peregrym Mykyta

  Views:

  149

  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.

• Contributions to the flora of Western-Transdanubia (W Hungary)

  213-234

  Attila Mesterházy

  László Kulcsár

  Views:

  121

  In this paper, we presented the results of our floristic survey in West-Hungarian region. The data were collected between 2005 and 2015 and supportted with herbaria or photo-documentation. This paper reports new floristic data of 98 taxa from West-Hungary with altogether 172 field-collected data records. In the survey we focused on little-known taxa with a phyto-geographic importance. For some taxa we checked the herbarium specimens of Savaria Museum and Natural History Museum of Budapest. During our fieldwork we recorded 8 species new to W-Hungary, including 3 species considered to be native to the region [Oenanthe banatica Heuff., Koeleria pyramidata (Lam.) P. Beauv., Polycnemum majus A. Braun.]. Almost all of the recorded species are regarded as indigenous plants, many of them has nature conservation importance, thus, their monitoring are highly advised. We found new localities of many species which of high importance for plant geography describing their current distribution. Most of the recorded species occur in natural or semi-natural habitats, but some taxa were found in synanthropic habitats and extensive arable lands.

• Contributions to the Atlas Florae Hungariae X.

  101–106

  János Csiky

  Kornél Baráth

  Péter Barna

  Éva Csikyné Radnai

  Judit Deme

  Csaba Szigetvári

  Tamás Wirth

  Dániel Kovács

  Views:

  313

  This paper is the 10th in the series aiming to contribute with new distribution data to the maps published recently in Atlas Florae Hungariae. Distribution data of 686 plant species from 194 flora mapping units are published in this study, but all of them are listed in an electronic appendix. As a result of local surveys, more than 100 new species were found in a single flora mapping unit. Other “linear surveys” along the National Blue Trail revealed 142 new species in 10 flora mapping units in total. Among these, Carex strigosa is one of the most interesting taxa in the Bakony Mts. Previously published and new distribution data of this legally protected sedge species suggests that it is spreading from SW to NE within the Transdanubian Mts. Results from our survey shows that studying synanthropic habitats like frequently used hiking trails might provide a significant amount of new data points at the scale of Hungarian Flora mapping units. Moreover, similar studies might shed some light on the origins and migration routes (e.g. Illyrian and Dacian routes) of “native” species.

• Floristic data from the central part of the floristic region ‘Crisicum’ (E Hungary)

  317–357

  Balázs András Lukács

  Gergely Gulyás

  Dénes Horváth

  István Hődör

  András Schmotzer

  Gábor Sramkó

  Attila Takács

  Attila Molnár

  Views:

  249

  This paper reports new floristic data of 207 taxa. Data collected between 2005 and 2015; originated from the central part of the floristic region ‘Crisicum’ (i.e. the E part of the Great Hungarian Plain), which is a currently poorly studied area of Hungary from a floristic point of view. The paper reports occurrence localities for some rarities such as Asplenium trichomanes, Marsilea quadrifolia, Sisymbrium polymorphum, Viola stagnina, Gentiana pneumonanthe, Elymus elongatus, Montia fontana subsp. chondrosperma, Ranunculus rionii, Ranunculus illyricus, Myagrum perfoliatum, Sedum caespitosum, Vicia biennis, Dorycnium herbaceum, Oenanthe banatica, Peucedanum cervaria, Echium italicum, Digitalis lanata, Valerianella rimosa, Craex buekii, Cephalaria transsylvanica, Cyperus pannonicus.

• Contributions to the flora of kurgans in the Middle Tisza region

  94–105

  Balázs Deák

  Péter Török

  Béla Tóthmérész

  Szilvia Radócz

  Katalin Lukács

  Orsolya Valkó

  Views:

  513

  Kurgans are ancient burial mounds built by nomadic steppic cultures. Embedded in the heavily transformed landscapes of the Carpathian Basin they often serve as last refuges for rare and endangered plant species. In our paper we publish floristic data collected on 82 kurgans located in the area of the Hortobágy National Park Directorate. Our dataset covers 64 CEU quarter quadrates, and the territory of 45 settlements. We provide data on 39 taxa that are either protected (e.g. Anchusa barrelieri, Centaurea solstitialis, Ranunculus illyricus and Phlomis tuberosa) or regionally rare (e.g. Aegilops cylindrica, Astragalus austriacus, Glaucium corniculatum and Trifolium diffusum). Our records demonstrate that kurgans have a vital role in maintaining the populations of rare and endangered grassland species even in transformed landscapes.

• The clammy goosefoot (Chenopodium pumilio R.BR.) in Zugló (Budapest) and new data on the distribution of invasive species in NE Hungary

  221-226

  Csaba Molnár

  Melinda Juhász

  Views:

  115

  The paper summarise occurrences of some rare invasive weeds of Hungary. We found currently second population at the Australian origin Chenopodium pumilio in Budapest (Zugló) in September 2016. Further, 27 occurrence data of 8 other species (Amaranthus deflexus, Echium maculatum, Lepidium densiflorum, Oxybaphus nyctagineus, Panicum dichotomiflorum, Portulaca grandiflora, Sarothamnus scoparius, Tragus racemosus) is also reported in the persent paper from the ‘Északi-középhegyég’ area (Northeast-Hungary), and some data from beside the Hungarian–Slovakian border, especially settlements, strongly disturbed places (especially road curbs, pavement cracks, train stations), indicating the Central European flora mapping system quadrate number. Voucher specimens were deposited in herbarium of Hungarian Natural History Museum, Budapest (BP).

• Short communications

  262-271

  Tamás Exner

  Lajos Somlyay

  Adrás István Csathó

  Csaba Molnár

  Viktor Virók

  Kristóf Süveges

  Norbert Riezing

  Tamás Wirth

  Views:

  293

  1. Elatine alsinastrum and other floristic records from the Buda Mts (central Hungary)

  2. Eleusine indica in the ‘Maros–Körös köze’ region (SE Hungary)

  3. The spread of Panicum dichotomiflorum in the North Hungarian Mts; new records from Gyöngyös and Felsőnyárád (NE Hungary)

  4. Symphyotrichum ciliatum in the Sajó–Hernád plain (NE Hungary)

  5. Alnus incana and Vitis sylvestris in the Által-ér valley (NW Hungary)

  6. Contributions to the distribution of Euphorbia prostrata and Euphorbia serpens in Hungary

• Contributions to the algal flora of a recently-formed peat moss bog near Kőszeg (W Hungary)

  113–130

  Sándor Bancsó

  Views:

  367

  The Alsó-erdő peat bog near Kőszeg has undergone a significant transformation since its first mention in the literature. In addition to the original single patch, a smaller one appeared a few decades later. The process did not stop and a third unit, discussed here, was formed. The succession of its macrovegetation towards the typical peat moss association started slowly but surely, due to balanced water regime and other optimal environmental conditions. The process is more advanced for the algal vegetation, which shows the characteristics of peat bogs already. The high species diversity found makes the habitat highly valuable itself. Although a special, unique algal species has not been found in previous studies, 27 Desmidiales taxa listed as endangered occur sometimes with high density and make the habitat even more valuable. Based on our results, the area deserves special attention both from the habitat conservation and research point of view. At the same time, its further monitoring can provide crucial information for exploring and understanding the succession of similar habitats, and thereby for their more efficient protection.

• Bruchia flexuosa (Schwägr.) Müll. Hal. a true peculiarity in the Hungarian bryoflora

  193-201

  Csaba Németh

  Attila Mesterházy

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  118

  The fifth European occurrence of the moss species Bruchia flexuosa possessing a holarctic distribution range with a North American centre was encountered in Hungary. Outside of the North American continent only two Asian (both from Japan) and four European occurrences from four different countries (Italy, Austria, Slovenia, Croatia) have hitherto been reported. Apart from the recent Japan findings and the Croatian record observed in 1987, all other European records date back to the 19^th century. Our paper reports the circumstances of the Hungarian occurrence along with a short descriptions and photographic illustrations of both the species and its habitat.