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• Taxiphyllum densifolium (Taxiphyllaceae) and other rare bryophytes of the Mecsek valleys (SW Hungary)

  3-16

  János Csiky

  Attila Sipos

  Views:

  88

  In this paper, we deal with threatened and/or legally protected bryophytes found in the shady, forested valleys of the Mecsek Mountains, which are rare in national and/or local terms. Taxip­hyllum den­sifolium, a rare moss in Europe has stable colonies with sporophytes in two valleys. This study is the first to describe the spore characteristics of this species. The previously considered unique and legally pro­tected Rhynchostegiella teneriffae is nowadays so widespread in the Mecsek that it can no longer be consi­dered a vulnerable species (VU) in Hungary. We present the first population of the legally pro­tected Nec­kera pennata in Tolna county, and we also report on the recent, unusual occurren­ce of the data-deficient (DD) Fossombronia wondraczekii. We also list new populations of three other endangered (EN) species, Blindiadelphus recurvatus, Palustriella commutata and Porella arboris-vitae. Several vulnerable (VU) taxa such as Blepharostoma trichophyllum, Porella cordaeana, Sciuro-hypnum flotowianum, Seligeria pusilla, as well as new occurrences of near threatened (NT) mosses such as Mic­roeurhynchium pumilum (with sporophytes), Phaeoceros carolinianus are documented. In addition, the data on Rhynchostegium rotundi­folium in Jakab Mountain, which has not been recorded for more than 50 years, is confirmed. The difficul­ties of differentiating Hygroamblystegium species are briefly discus­sed.

• 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).

• Critical review of the distribution of Equisetum × moorei and E. hyemale in the Nyírség (East Hungary)

  131–144

  László Demeter

  Balázs Lesku

  Views:

  469

  Confusing Moore's horsetail (Equisetum × moorei Newman) with rough horsetail (Equisetum hyemale L.) is a known problem in many countries. In our paper, we review some of the features used for their identification concerning their usability. We examined Equisetum hyemale stands in the Nyírség reported in the literature and E. hyemale specimens of the Herbarium of the University of Debrecen that were collected in the Nyírség. We found that most of these stands and herbarium specimens are actually E. × moorei. The occurrence of E. hyemale was only confirmed in Bátorliget. We also report several new occurrences of Equisetum × moorei in the Nyírség. To better separate the two taxa, we recommend micromorphological examination of the surface of the shoots, which can be performed in the field, as well as observing the height of the leaf-sheath.

• Floristical data from abandoned vineyards of Cserhát Hills

  260-266

  Ákos Malatinszky

  Zoltán Mravcsik

  Dalma Dedák

  Views:

  54

  The results of floristic researches in abandoned vineyards of Cserhát Hills (Northeastern Hungary) between 2007 and 2014 are presented along with an account of relevant floristic literature and specimens of the Herbarium Carpato–Pannonicum Collection of the Hungarian Natural History Museum. Data of protected species and locally or generally rare ones are presented. Occurrences of Equisetum × moorei, Hesperis sylvestris, Gentiana cruciata, Scabiosa canescens, Campanula macrostachya, Carlina acaulis, Centaurea indurata, C. stenolepis, Epipactis atrorubens and Orchis ustulata subsp. aestivalis are especially significant. Some new localities of the following species are also emphasized: Pulsatilla grandis, Sorbus domestica, Centaurea scabiosa subsp. sadleriana, Orchis militaris, O. × hybrida, Ranunculus arvensis, Rapistrum perenne, Chamaecytisus virescens, Ch. austriacus, Hippocrepis comosa, Euphorbia salicifolia, Thymelaea passerina, Senecio erucifolius.

• Annual Lythrum species in Hungary: revision of the subgenus Hyssopifolia

  64–70

  Attila Mesterházy

  Views:

  108

  Four ephemeral Lythrum species have been recorded from Hungary so far. Lythrum hyssopifolia is widely distributed in the whole country. Most occurrences of L. tribracteatum are located in southeastern Hungary and alongside the Danube. The Central Asian L. linifolium was reported from a single locality (Tiszaug village, E Hungary) in 1954, which is the only European record of this species. However, we have ascertained that the voucher specimen of this record differs from L. linifolium in some morphological traits, but strongly resembles L. borysthenicum that is distributed in the Mediterranean and steppe regions of eastern Europe. Based on our revision we suggest deleting L. linifolium from both Hungarian and European checklists. The former Hungarian occurrence of L. thesioides is confirmed by vouchers.

• Historical occurrence of Spergularia echinosperma, a rare Nanocyperion species in Hungary

  3–9

  Attila Mesterházy

  Pavel Kúr

  Views:

  278

  Three species of the genus Spergularia have been known from Hungary. The most widespread one, Spergularia rubra (L.) J. Presl et C. Presl occurs on young sandy fallow fields and other disturbed habitats.  The other species, S. marina (L.) Bess. and S. media (L.) C. Presl, occur sporadically in saline grasslands, and both have been recently spreading along salted roads. During a revision of the genus Spergularia in Hungarian herbaria, specimens of the species S. echinosperma (Čelak.) Asch. et Graebn. were found. It is a rare species previously known to occur only in Czechia and Germany and to be extinct in Austria and Slovakia (a few occurrences along the Morava and Danube rivers between 1909 and 1953). However, it was recently discovered in Western Siberia and Kazakhstan. It is a typical mudflat plant that occurs on exposed sandy shores of water bodies. Two herbarium sheets collected by Gyula Tauscher from near the village of Ercsi (riverbank of the Danube) in 1903 were found in the Carpato-Pannonicum collection of the Hungarian Natural History Museum. In addition, a new specimen was found, collected in Slovakia (Danube near Šamorín, collected by Mihály Résely in 1868) at the vicinity of the Hungarian border. The species was not confirmed during a field inspection of the target localities in Hungary; therefore, we have to consider it extinct in the country as well as in the whole Pannonian Basin. Recently, S. echinosperma was split into two subspecies – subsp. echinosperma and subsp. albensis. The subsp. echinosperma is probably restricted to fishponds in the SW part of Czechia and subsp. albensis occurs mainly in the floodplains of the river Elbe in Germany. The extinct populations of S. echinosperma in the Pannonian Basin belonged to the subsp. albensis. This taxon is morphologically close to S. rubra but can be reliably distinguished by densely verrucose seeds and shorter than wide stipules.

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

  193-201

  Csaba Németh

  Attila Mesterházy

  Views:

  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.

• Data to the flora of Hungary I.

  254-259

  Dániel Kovács

  Views:

  64

  The paper gives new floristic data from several regions of Hungary. Some of them are recent evidences of old data (e.g. Herniaria incana in Pomáz), others are new occurrences of recently expanding alien species (e.g. Eleusine indica, Geranium purpureum, Typha laxmannii), casual species (e.g. Lobularia maritima, Nepeta racemosa) or legally protected taxa (e.g. Agrostemma githago, Ornithogalum brevistylum, Ranunculus illyricus, Sonchus palustris).

• Occurrences of Kievan nettle (Urtica kioviensis) in the South Nyírség (East Hungary)

  126–131

  László Demeter

  László Szél

  Views:

  247

  So far, only one herbarium data and one flora mapping data on Kievan nettle (Urtica kioviensis Rogow.) has been known from the Southern Nyírség. Since 2004, the species has been detected in 14 flora mapping quadrats. Its data were also collected in winter because its habitats are more easily accessible on ice, its overwintering shoots are more noticeable, and they are strikingly morphologically different from the great nettle (Urtica dioica L.). Typical habitats were willow carrs (Calamagrosti-Salicetum cinereae), reeds (Phragmitetum communis), rush-beds (Typhetum latifoliae, Typhetum angustifoliae), tufted sedge communities (Caricetum elatae) and tall sedge meadows (mainly Caricetum acutiformis). The largest stocks live in reservoirs in secondary habitats. A significant part of the stocks is located in the wide valleys of the main watercourses in the area.

• Short communications

  404–411

  József Nagy

  László Kulcsár

  Gábor Matus

  Rebeka Balogh

  László Demeter

  Csaba Molnár

  Timea Nagy

  Ádám Lovas-Kiss

  Viktor Löki

  Attila Molnár V.

  Views:

  313

  1. Cephalanthera damasonium (Mill.) Druce in the Buda Arboretum

  2. Opuntia phaeacantha Engelm. in the West-Transdanubia (W Hungary)

  3. Yucca filamentosa L. in the South-Nyírség (E Hungary)

  4. New occurrences of Chamaecytisus rochelii (Wierzb.) Rothm. on the Hungarian Great Plain and corrections on its previous occurrence data

  5. Hybrid birch (Betula ×rhombifolia Tausch.) in the central part of Mátra Mountains

  6. A csipkés gyöngyvessző (Spiraea crenata L.) újabb temetői előfordulása / A new occurrence of Spiraea crenata L. in a Hungarian graveyard

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

  251–252

  István Zsolt Tóth

  Views:

  235

  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.

• New Epipactis species in the flora of the Vértes Mts

  104-105

  Norbert Riezing

  Views:

  221

  Here, I report Epipactis occurrences new to the flora of the Vértes Mts (Transdanubian Mts, north-western Hungary).  In 2020, new populations of Epipactis pontica Taubenheim, E. moravica Batoušek and E. pseudopurpurata Mered’a were found in old mesic beech and mixed beech forests.

• 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).

• 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 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.

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

  242-246

  Norbert Bauer

  Views:

  358

  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.

• Short communications

  257-260

  Csaba Molnár

  Miklós Csábi

  György Tóth

  Zoltán V. Varga

  Anikó Csecserits

  Tamás Rédei

  Views:

  130

  1. Crataegus rosaeformis Janka subsp. rosaeformis in Cserehát (NE Hungary)

  2. Epipactis pseudopurpurata Mered’a in Gödöllő hill (N Hungary)

  3. Occurrence of Sedum caespitosum (Cav.) DC. near Vésztő (E Hungary)

  4. New occurrences of Sherardia arvensis L. and Asplenium scolopendrium L.

• Contributions to the knowledge of biology and Hungarian distribution range of Orobanche reticulata

  95-98

  Norbert Bauer

  Views:

  398

  Some new Hungarian occurrences of Orobanche reticulata Wallr. are discussed in this paper. On the Bér-hegy hill (Eastern Bakony Mts) the species was observed on a so far unknown host plant (Carduus hamulosus). Although the species usually flowers from May to July in Hungary, the observed individual was in full bloom in October, probably due to the extremely rainy year (2010). Another population of the species, found at Magyaralmás settlement in the foreground of the Vértes Hills, deserves attention because of its size. In early summer of 2020, individuals of O. reticulata appeared in a great quantity (several hundred ones) on a fallow land that was developed from a natural dry grassland having been ploughed in the previous year. In this case the local host plants were Carduus nutans subsp. leiophyllus and Carduus acanthoides. Some further records of the species from the Transdanubian Mts and the regions of Külső-Somogy and Mezőföld present new data in the Hungarian flora mapping program.

• Contribution to the bryoflora of Sopron Hills (W Hungary) II.

  59-66

  Péter Szűcs

  Dávid Schmidt

  Ágnes Csiszár

  Views:

  109

  Based on data collected during their field survey in 2009–2014, the authors present the results of bryofloristical investigations carried out in the Hungarian part of Sopron Hills. The authors have detected altogether 22 species previously unreported from the territory. These are: Diplophyllum albicans, Scapania lingulata, Scapania scandica, Bryoerythrophyllum recurvirostrum, Ctenidium molluscum, Didymodon vinealis, Ditrichum cylindricum, Ditrichum pusillum, Fissidens dubius, Fissidens exilis, Homalothecium sericeum, Leucobryum juniperoideum, Neckera crispa, Orthotrichum lyellii, Orthotrichum obtusifolium, Orthotrichum pallens, Orthotrichum patens, Orthotrichum stramineum, Orthotrichum striatum, Rhodobryum ontariense, Thamnobryum alopecurum, Tortella tortuosa, Tortula virescens. Diplophyllum albicans and Mnium thomsonii have their only extant occurrences in Hungary in the region.

• 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.

• Distribution of Calamagrostis stricta (Timm) Koeler in the Southern Nyírség (E Hungary)

  188-196

  László Demeter

  Views:

  145

  This study presents the current distribution of narrow small-reed (Calamagrostis stricta (Timm) Koeler) in the southern part of Nyírség (E Hungary). Beyond the efforts to confirm previously known occurrences, a high number of potential habitats were surveyed. Field work was carried out from late autumn to early spring taking advantage of the better perceptibility of dry foliage. The species was detected in 43 localities inside the boundary of 15 settlements, which considerably exceeded our expectations. Although most of the populations were quite small, in some cases their extent reached over 1000 m².  Populations around the settlements of Penészlek, Fülöp and Nyírábrány were the most frequent and the largest in size. The endangered status of the species is caused by the insufficient water supply of suitable habitats in the region. Besides habitat change, desiccation can also amplify the effect of anthropogenic disturbances (e.g. ploughing, fishpond development), which poses a further threat to populations.

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

  187–194

  Dávid Schmidt

  Views:

  298

  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.

• Data on spreading cultivated species in Hungarian botanical gardens

  62–78

  Dániel Kovács

  Gábor Málnási-Csizmadia

  Márta Somlyai

  Jana Táborská

  László Máté Tálas

  Views:

  310

  Our article provides data of 186 spreading cultivated taxa in Hungary. Among these, the spreading of 40 species in botanical gardens was not known until now. During our work, we examined the arboretums of Ti­szakürt, Szarvas and Erdőtelek, the agrobotanical garden of Tápiószele (located in the National Centre for Biodiversity and Gene Conservation), the botanical garden of the Eszterházy Károly Catholic Uni­versity in Eger and the De la Motte Castle Park in Noszvaj. We collected further data on the lately iden­tified Cardamine occulta and the spreading Veronica peregrina taxa, which spread mainly through plants sold in pots. Besides the already known two Juglans species, we found four new potentially spreading ones from the family of Juglandaceae (Carya cordiformis, C. ovata, Juglans cinerea and J. microcarpa). We also found seedlings and saplings in the case of all the investigated Abies species. We found the seventh Hungarian occurrence of Ludwigia grandiflora in the artificial lake of the Arboretum of Szarvas. The quantity of new occurrences reported in this paper highlights the need for further research in living collections in Hungarian botanical gardens.

• 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).

• Contributions to the Atlas Florae Hungariae XIII.

  85-88

  Győző Haszonits

  Csaba Molnár

  Judit Sonkoly

  Béla Tóthmérész

  Péter Török

  Edina Tóth

  Péter Gnotek

  József Nagy

  Márton Korda

  Szilvia Ádám

  Ákos Malatinszky

  Norbert Riezing

  Zoltán Jóna

  Dániel Séllei

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  The present paper is the 13th in a series of papers contributing new floristic data to complement the distribution maps of Atlas Florae Hungariae. We present altogether 1307 new occurrence data to advance our knowledge of the distribution of vascular plants in Hungary. New data are presented for 634 vascular plant species from 256 flora mapping quarter quadrates (CEU). Due to the unevenness of data collection, the data are highly dispersed over the area of Hungary. Most of the presented occurrence data are from the Great Hungarian Plain, the North Hungarian Mountains, and the Little Hungarian Plain regions. The enumeration includes rare native species (e.g., Androsace maxima, Erysimum crepidifolium, Orobanche gracilis, Peucedanum palustre, Pulsatilla zimmermannii, Scopolia carniolica, Vicia biennis), rare or data deficient adventive species (e.g., Euphorbia prostrata, Euphorbia serpens, Lindernia dubia), subspontaneous occurrences of native species (Asplenium scolopendrium, Daphne laureola, Chenopodium opulifolium), species spreading along linear infrastructure (Eleusine indica, Plantago coronopus, Sorghum halepense, Spergularia salina, Tragus racemosus), and also common native species with data deficient distribution maps (Agrostis stolonifera, Bromus benekenii, Bromus japonicus, Carex caryophyllea, Carex divulsa subsp. divulsa, Equisetum ramosissimum, Vulpia myuros).