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  • Data on alien vascular plant species in Hungary II. (7–12)
    253–264
    Views:
    227

    In the second part of our series providing data on alien plant species in Hungary, we add­ress taxa belonging to the families Cabombaceae, Brassicaceae, Rubiaceae, Buxaceae, Violaceae and Compositae. We present new records of the distribution of Cabomba caroliniana on the Körös Plain: along the Élővíz Canal between the towns of Békés and Békéscsaba the species was found at 17 sites, covering a total area of more than 630 m² in slightly alkaline, low-conductivity water that remains unfrozen in winter. In Szentendre, we document a transient escape of Isatis tinctoria and several popu­lations of Rubia tinctorum, some of which can be traced back to former cultivation. We report the first extra-garden, woodland occurrence of Pachysandra terminalis in Hungary and relate it to the dumping of green waste. We clarify the status of Viola prionantha in the Hungarian flora and list numerous oc­currences mainly associated with urban pavements, parks and cemeteries. We detected a new occurrence of the Atlantic halophyte Cochlearia danica on the Great Hungarian Plain, near Karcag, along the Main Road 4. Finally, we describe the first Hungarian record of Symphyotrichum squamatum from pioneer silt surfaces along a canal near Szeged, highlighting its potential invasive role.

  • Data on the native vascular plant species of the Pannonian Region II. (6–22)
    233–252
    Views:
    417

    In the second part of this article series, which provides data contributing to the knowledge of native plant species of the Pannonian Ecoregion, we address rare species – mostly legally protected in Hungary – belonging to the families Cephaloziaceae, Athyriaceae, Dryopteridaceae, Cystopteridaceae, Thelypteridaceae, Brassicaceae, Rosaceae, Elatinaceae, Apiaceae, Orobanchaceae, Liliaceae, and Orchi­da­ceae. We report the current occurrence of Nowellia curvifolia in the Sub-Pannonian region of Slove­nia. We present an exceptionally species-rich habitat for ferns (Athyrium filix-femina, Dryopteris carthu­siana, D. dilatata, D. filix-mas, Gymnocarpium dryopteris, Polystichum aculeatum) from the ‘Borsodi ártér’ micro­region. We provide data on the stands of Thelypteris palustris observed along the main irrigation canals of ‘Tiszántúl’ region. We publish new occurrence records contributing to the Hungari­an distribution of Aethionema saxatile, Crataegus nigra, Elatine hungarica, Sium sisarum, Orobanche hederae, Himantoglos­sum adriaticum, Epipactis placentina, E. exilis, E. pseudopurpurata, and E. micro­phylla, as well as to the appearance of Helosciadium repens in urbanized environment. Gagea spathacea and G. bohemica are newly recorded for the Zemplén Mts; Epipactis nordeniorum and Epipogium aphyl­lum are new for the flora of the Mátra Mts; and Himantoglossum calcaratum is newly recorded for Hun­gary. We also present spontaneous establishment of several orchid species in the courtyard of a sec­ondary school in Veszprém. Additionally, we report on the pollinating insects observed on the flowers of Sternbergia colchiciflora. Two previously misreported records are also corrected.

  • The Wildflower of the Year 2016 in Hungary: snake's head fritillary (Fritillaria meleagris)
    79–100
    Views:
    2193

    In this paper a short review of the nomenclature and etymology, taxonomy, morphology, histology, life cycle, phenology, reproduction, habitat preference, biotic interactions, biologically active compounds, micropropagation, applications possibilities and conservation status of snake's head fritillary (Fritillaria meleagris L.) can be found. Refining of the European distribution area and contributions to the distribution in Hungary are also presented. Primer seed-set, thousand-seed weight, soil charac¬teristic and demographic data are published.

  • Contributions to the Atlas Florae Hungariae II.
    227-252
    Views:
    673

    The present article is the second part of the series aiming to contribute with new data to the distribution maps published recently in Atlas Florae Hungariae. Current occurrence data of 612 vascular plant taxa from 283 flora mapping quadrates (CEU) are presented. New records are distributed over the entire Hungary, however, most are localised in the North Hungarian Mts. Occurrence data of rare native taxa (e.g. Antennaria dioicaBupleurum pachnospermumCarex rostrataCeratocephala testiculataCicuta virosaCirsium boujartiiEpipactis moravicaLycopsis arvensisParnassia palustrisPyrus nivalisRumex kerneriRumex pulcherSilene nemoralisStellaria alsineTeucrium botrysVicia lutea), rare or data-deficient alien taxa (e.g. Nonea luteaPanicum dichotomiflorumSilybum marianum) as well as frequent but more or less underrepresented taxa (e.g. Eragrostis minorHeliotropium europaeumSaxifraga tridactylites) are also enumerated, since our intention was to fill the gaps in the Atlas. Remarcable contribution on the occupied territory of Ranunculus illyricus and Spergula pentandra in the Nyírség region (E Hungary), and on the Hungarian distribution of expanding alien weed Senecio vernalis are also presented.

  • New species in the alien flora of Hungary
    203–232
    Views:
    324

    In this compilation we present the first occurrences of 22 vascular plant species not previ­ously documented from the territory of Hungary. Fifteen of the species are casuals, while seven of them are already naturalised, at least locally. We report the mass appearance and naturalization of Sagina maritima and the emergence of Carduus pycnocephalus along roadsides, single sites of Chaenorhinum litorale and Solanum elaeagnifolium near railway lines, and the localities of Lepidium latifolium and Sisymbrium volgense in various disturbed habitats, and some occurrences of Acalypha virginica in ur­ban environments. The first record of Bacopa rotundifolia is from a rice field, while that of Hydrocotyle sibthorpioides is from an urban lawn, and Senna tora occurred on construction debris. Among the spe­cies that appeared spontaneously as a result of earlier planting, Celastrus orbiculatus forms a natural­ized population in a tree plantation, Hygrophila triflora and Pontederia cordata are present in artificial canals and lakes, and Cenchus longisetus has become naturalised and is spreading along the banks of the Danube in Szentendre. Most other species are associated with trampled or heavily disturbed habi­tats in built-up areas (pavement edges, fences, ruderal areas). Alnus cordata, Eryobotria japonica, Euon­ymus alatus, Paxistima canbyi, Pistacia terebinthus and Solanum pseudocapsicum are present as casuals, while Viola palmata has become naturalised in built-up environments. The naturalisation process of Allium aflatunense on a private property has also been documented.

  • The herbarium of the Botanical Garden of Eötvös Loránd University (BPU)
    55–59
    Views:
    511

    The paper introduces the herbarium of Eötvös Loránd University (BPU), currently stored at the Botanical Garden of the University, according to its state in the year 2013. The BPU herbarium consists of ca. 16 000 specimens the relevant data of which have been organised into an OpenOffice Calc spreadsheet database. The specimens were collected in 16 European countries, mainly in the current territory of Hungary (80%), Romania (12%) and Slovakia (5%). Other countries are represented with very few specimens. The vast majority (ca. 70%) of the Hungarian specimens were collected in Pest, Veszprém, Borsod-Abaúj-Zemplén, Hajdú-Bihar and Szabolcs-Szatmár-Bereg counties. Although the gatherings cover a century and a half period of time, the most rapid growth of the collection took place from the 1930s to the 1960s. The most prolific collectors were Rezső Soó and his followers: Lajos Felföldy, Tibor Simon and Szaniszló Priszter. Felföldy and Simon enriched the collection through more than 60 years. Data on the native plants collected in the present-day Hungary are summarized in Electronic Appendix 1. (incl. taxon name, settlement, collecting year, collector, file name of documentary photograph).

  • The Wildflower of the Year 2014 in Hungary: Siberian flag (Iris sibirica L.)
    268-285
    Views:
    429

    In this paper a review of the nomenclature, etymology, taxonomy, morphology, histology, life cycle, phenology, reproduction, habitat preference, biotic interactions, biologically active compounds, micropropagation, application possibilities and conservation status of Siberian flag (Iris sibirica L.) can be found. Leaf traits, phenological data, seed-set, thousand-seed weight, germination, growth rate and soil characteristic data are published based on original observations:

    • Leaf area is between 25,3 and 52,9 cm2, its dry mass is 232 and 272 mg/g, specific leaf area is 14,5 and 15,0 m2/kg; based on measurement of 5–5 leaves of sibirica, collected from Tapolca and Létavértes (Hungary) in May of 2014.
    • Based on herbarium dataset, blooming of sibirica begins at the end of April and lasts to early-July, contrary to the literature data (May–June).
    • Capsules contain (0–)58–76(–121) fertile seeds. (20–)60–80(–90)% of ovules develops to (seemingly) viable seeds, meanwhile the other ovules remain as aborted ones or develop to infertile seeds (probably because of absence of resources); based on fruits collected from Regéc (Hungary) in 2014 and 2015.
    • Thousand-seed weight of sibirica is 8,8298–11,2914 g (based on 3×100–100 seeds collected from Regéc and Tapolca in 2014 and 2015), which is lower value than the literature data.
    • In our germination test (50–50 seeds sowed to wet soil, after different treatments) 14% of scarified seeds, 6% of scalded seeds, 4–4% of imbibed and control seeds, 0–0% of cooled and refrigerated seeds are germinated. Scarified seeds germinated in the 8–26th days, imbibed seeds 15–19th days, control seeds 16–20th days, scalded seeds 20–23th days after sowing. It seems that scarification stimulates, meanwhile temperature-treatments inhibit the germination. Until 18 weeks the seedlings grow to 30 cm (in mean) and develop 5–7 leaves (in mean). After the 14th week, the first and littlemost lateral leaves are necrosed.
    • Analyses of soil samples collected from 17 locations of sibirica in Hungary, suggest that the species prefers highly acidic to slightly alcalic, lime-free to highly calcareous soils with generally high amount of humus and clay, different amount of phosphorus, potassium and nitrogen and low concentration of salt.
  • Occurrences of the memebers of Callitriche brutia complex (C. hamulata, C. subsp. brutia and C. brutia subsp. naftolskyi) in Hungary
    77–88
    Views:
    452

    This article summarizes the recent occurrences of taxa of the C. brutia complex in Hungary. Formerly, C. hamulata was known from Hungary based on a specimen of uncertain origin from Vas County. The first confirmed record of the species date back to 2014, since then it has been found from from a total of 4 localities in streams in Western Transdanubia and along the Danube. The first detec­tion of C. brutia subsp. brutia was in 2016 in the Kunkápolnás marsh of the Hortobágy region, and since then the subspecies has been spreading in the area. The subsp. naftolsky was found in 2024 in a terres­trial form in a saltwater marsh in the Dél-Tiszántúl region. While C. hamulata is probably a native member of the Hungarian flora, the two subspecies of C. brutia may have colonised more recently, probably introduced by birds. Their colonisation may be related to the ongoing climate change, which has resulted in the introduction of plants from the Mediterranean region, often by natural means.

  • The herbarium of Debrecen University (DE) I. The “Rezső Soó Herbarium”
    142-155
    Views:
    480

    The paper introduces the herbarium of Debrecen University (DE). All specimens of the herbarium were documented by digital photographs, and all data from the labels were entered into an Excel spreadsheet. The largest collection of Herbarium DE, the “Soó Rezső Herbarium” (abbreviation: SRH) consists of ca. 38.000 specimens from almost all European countries, but mainly from Hungary and the neighbouring countries. Most of the specimens originate from Hajdú-Bihar, Pest, Győr-Moson-Sopron, Borsod-Abaúj-Zemplén, Veszprém and Szabolcs-Szatmár-Bereg counties. The SRH stores a considerable amount of original/authentic specimens collected by Hungarian botanists, primarily by Rezső Soó and his followers, as well as Sándor Polgár. The most rapid growth of the SRH took place in the first half of the last century (1930–1950). By contrast, the collection was practically not developed between 1955 and 2000. After the millennium it started to grow again. Data on the most substantial part of the SRH covering native plants collected in the present-day Hungary are summarized in Electronic Appendix 1. (incl. taxon name, settlement, collecting date, collector, file name of documentary photograph).

  • Short communications
    168-174
    Views:
    681

    1. Occurrence of Lycopodium clavatum L. in 'Egri-Bükkalja' microregion (NE Hungary)

    2. Contribution to the urban flora of Debrecen (E Hungary)

    3. Contributions to the distribution data published in the Atlas of Hungarian Orchids

    4. New occurrence of Sisyrinchium bermudiana L. in the Carpathian Basin (Transylvania, Romania)

    5. Occurrence of Myagrum perfoliatum L. near Mezőberény town (East Hungary)

  • Contributions to the Atlas Florae Hungariae III.
    122-146
    Views:
    1277

    The current paper is the third 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 558 vascular plant taxa from 186 flora mapping quadrates (CEU) are presented. New records are indicated from different regions of Hungary; however, most occurrences are located in the North Hungarian Mts. Occurrence data of rare native taxa (e.g. Marsilea quadrifoliaSalicornia prostrataStellaria palustrisPotentilla patulaAlthaea cannabinaLythrum tribracteatumAjuga laxmanniiPlantago schwarzenbergianaAlisma gramineumGagea bohemicaG. szovitsii), rare or data-deficient alien taxa (e.g. Chorispora tenellaThladiantha dubiaSenecio vernalis) as well as frequent but more or less underrepresented taxa (e.g. Scleranthus annuusVicia hirsutaV. lathyroides) are also enumerated. In case of the most common species we provided the CEU codes only.

  • The Wildflower of the Year 2013 in Hungary: Summer Snowflake (Leucojum aestivum L.)
    354-364
    Views:
    316

    In this paper a short review of the taxonomy, nomenclature, morphology, distribution, habitat characteristics, phenology, reproduction, biotic interactions, biologically active compounds, conservation status and threatening factors of Leucojum aestivum can be found.

  • Floristic data from the central part of the floristic region ‘Crisicum’ (E Hungary)
    317–357
    Views:
    480

    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.

  • Data on the native vascular plant species of the Pannonian Region I. (1–5)
    160–172
    Views:
    821

    This is the first part of a series presenting previously unpublished data of importance for the knowledge of native vascular plants in the Pannonian Region. This paper deals with the families Lycopodiaceae, Brassicaceae, Crassulaceae, Rosaceae and Orchidaceae. We document the occurrence of Lycopodiella inundata from a ski slope on the outskirts of Nagyhuta (Northern-Hungary) as a new species in Hungarian flora. New occurrence data are reported for the roadside spreading Sedum caespitosum and Thlaspi alliaceum. We report on the specimens of Spiraea crenata found in the interior of settlements (gardens, cemeteries) between 2019 and 2024. New occurrences of several orchid spe­cies rare in Hungary are reported: Himantoglossum adriaticum from the Mecsek Mts, the Balaton high­lands, the Bakony Mts and the Szigetköz regions (Western-Hungary); Ophrys fuciflora from Zala and Veszprém counties (Western-Hungary); Dactylorhiza fuchsii from Mezőföld region; Orchis mascula subsp. signifera from the northern part of the Great Plain (Northeastern-Hungary).

  • Orchids of poplar plantations – a review
    102–117
    Views:
    726463

    There are literature data on the occurrence of 26 orchid species and 2 hybrids in economic poplar plantations from 13 European countries. The occurrence of 4 additional species in poplar plantations in 3 countries is proved by sources on the World Wide Web. The most widespread orchids in the poplar plantations are the rhizomatous, partial myco-heterotroph Cephalanthera and Epipactis species. Their importance is enhanced by the fact that most of the known populations of some species with a relatively narrow distribution range (Epipactis bugacensis, E. campeadorii, E. fibri, E. tallosii, E. zaupolensis) are known in poplar plantations. Cultivated poplar monocultures are likely to provide habitat for further orchids in other countries too. Most of the published papers are limited to floristic data from a single or a few plantations. Longer-term observations are only available from Poland, thanks to the work of W. Adamowski, and these suggest that populations may persist for decades and even increase dynamically. The size of orchid populations in some cases can reach thousands or even hundreds of thousands of individuals. Orchids can appear earliest in (4–)7–8 years old plantations. Very little is known about how the cultivation, structure, soil conditions and the poplar cultivars influence the presence of orchids. Mycorrhizal interactions of poplars and orchids may play a key role in this process, but the available knowledge is very limited. Furthermore, little is known about how the economic use of plantations can be reconciled with the long-term maintenance of orchid populations.

  • The Herbarium of Debrecen University (DE) II.: The „Zoltán Siroki Herbarium”
    15-22
    Views:
    788

    The paper introduces the “Zoltán Siroki Herbarium” (on the basis of the MS Excel spreadsheet database of the collection) which is a separate section within the Herbarium of Debrecen University (DE). The Zoltán Siroki Herbarium consists of ca. 20 000 specimens from almost all European countries, but mainly from the historical territory of Hungary. Although ca. 400 botanists contributed to this collection, most of the specimens were collected by Zoltán Siroki in Hajdú-Bihar, Pest and Borsod-Abaúj-Zemplén counties. The most rapid growth of the Herbarium took place in the middle of the last century (from the 1940s to 1960s), but Siroki remained an active collector until the 1980s. Some specimens from the Herbarium of former Royal Seed Testing Station (Budapest) was also incorporated in this collection; they represent gatherings from the last decades of  the 19th century and first decades of the 20th century. Data on the most significant part of the collection, representing native plants collected in the present-day Hungary, are summarized in Electronic Appendix 1. (incl. taxon name, settlement, collecting year, collector, file name of documentary photograph).

  • Contributions to the Atlas Florae Hungariae I.
    101–115
    Views:
    622

    The main aim of the present work is to contribute with new data to the distribution maps published recently in Atlas Florae Hungariae. Occurrence data of 297 vascular plant taxa from 247 flora mapping quarter quadrates (CEU) are presented. This floristic paper is somehow unusual because besides the occurrence data of rare or sporadic taxa (e.g. Armoracia macrocarpa (Waldst. et Kit.) Kit. ex Baumg., Samolus valerandi L., Epipactis voethii Robatsch), frequent, but more or less underrepresented taxa (e.g. Ranunculus ficaria L., Viola kitaibeliana Roem. et Schult., Gagea villosa (M. Bieb.) Duby), as well as alien taxa (e.g. Cymbalaria muralis G. Gaertn., B. Mey. et Scherb., Potentilla indica (Andrews) Focke, Tragus racemosus (L.) All.) are also enumerated, since our intention was to fill the – sometimes evident – gaps in the Atlas.  The name initials of the author(s) who actually found the given occurrence are presented in brackets at each record.

  • Data on alien vascular plant species in Hungary I. (1–6)
    65–80
    Views:
    723

    This is the first in a series of papers by various authors presenting previously unpublished data relevant to the knowledge of alien vascular plants in Hungary. This paper deals with the families Pteridaceae, Brassicaceae, Plantaginaceae, Rosaceae, Ranunculaceae, Fabaceae and Poaceae. It includes new area records and distributional considerations for Cochlearia danica and Plantago coronopus spreading along Hungarian road-network as well as records of Panicum riparium from the Northern Hungarian Mountain range based on field work and herbarium revision. We note the importance of checking the data previously collected as P. capillare. Floristic data of two species not previously recorded in Hungary (Cardamine corymbosa, Ranunculus marginatus) and 3 sporadically occurring alien species (Aphanes australis, Lepidium didymum, Medicago arabica), from garden centres in the Debrecen area were published. A 7-year long survival of a population of Adiantum capillus-veneris in a traditional, abandoned well is also documented between 2017 and 2024. The paper reports that traffic infrastructure can facilitate the spread of Elymus elongatus along roads.

  • Floristic data from the northern edge of the floristic region ‘Crisicum’ (NE Hungary) II.: Borsodi-ártér és Sajó–Hernád-sík
    169–186
    Views:
    734

    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).

  • Floristic data from the northern edge of the floristic region ‘Crisicum’ (NE Hungary)
    275-294
    Views:
    362

    This paper reports new floristic data of 161 taxa. Most of these data were collected between 2011–2013, and are coming from the northern edge of the floristic region 'Crisicum', the NE part of the Great Hungarian Plain, which is a little-known area from a floristic point of view. 43 CEU quarterquadrates and territory of 35 settlements are represented by the dataset. The paper reports occurrence localities for legally protected (e.g. Ophioglossum vulgatum, Stellaria palustris, Ranunculus polyphyllus, Thlaspi jankae, Lathyrus palustris, Elatine spp., Lycopsis arvensis, Lindernia procumbens, Cirsium brachycephalum, Cyperus pannonicus), strictly protected (Armoracia macrocarpa, Vicia biennis) and some little-known (e.g. Cardamine parviflora, Reseda luteola, Melilorus dentatus, Veronica catenata) taxa. Numerous data of alien species (e.g. Lepidium densiflorum, Euphorbia maculata, Sicyos angulatus, Erechtites hieracifolia, Elodea nuttallii, Elymus elongatus, Eleusine indica, Sorghum halepense, Eriochloa villosa) are also published. The most important data are documented by voucher specimens deposited in herbarium of Debrecen University (DE).

  • In memoriam János Hulják (1884–1942)
    5-10
    Views:
    229

    János Hulják prominent Hungarian botanist was born 130 years ago. He worked as teacher and director in elementary school at Pereces (today it belong to Miskolc). He played key role in the floristic exploration of Northern Hungarian Mountain Range. His huge herbarium collection was destroyed during World War II., only the exchange material was preserved (about few hundred sheets), mainly in BP and DE. Some vascular plant species [Centaurea huljakii J. Wágner, Sorbus huljakii Kárpáti, Galium × huljakii Jávorka and Pilosella auriculoides subsp. huljakii (Zahn) Soják] were named after him.

  • Editorial communication
    89-90
    Views:
    519

    This editorial communication briefly summarize the problems that led to suspend publishing further articles in the series "Contributions to the Atlas Florae Hungariae".