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• Asparagus verticillatus L. in Hungary

  38-43

  Tamás Wirth

  Kinga Gyergyák

  Views:

  164

  Climbing asparagus (Asparagus verticillatus L.) a new adventive species to the Hungarian flora was recently discovered in the city of Pécs (South Hungary) in 2011–2012. Taxonomy, morphological description and current localities of the species are presented in this paper. A. verticillatus is a mediterranean-submediterranean species native in Balkan Peninsula, Eastern Europe, Western- and Middle Asia. The species is a popular ornamental plant in Hungary, but no data was available about its escape or naturalisation in the country so far. Herbarium specimens from Hungary were collected so far mostly from botanical and private gardens; only one specimen was collected in a dry grassland along a roadside in the city, respectively. The newly discovered small populations are located mostly in secondary dry grasslands, at the edges of vineyards and private gardens on the southern slopes of the Mecsek Mts and only one specimen was found far from the residential area in natural vegetation. Because climbing asparagus is a frequently planted ornamental plant in several locations of Pécs, further escape, naturalisation and persistence of the species is possible in the future.

• The Herbarium of Debrecen University (DE) II.: The „Zoltán Siroki Herbarium”

  15-22

  Attila Takács

  Kristóf Süveges

  Tibor Ljubka

  Viktor Löki

  Zsuzsa Lisztes-Szabó

  Attila Molnár V.

  Views:

  435

  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).

• Vaccinium microcarpum (Turcz. ex Rupr.) Schmalh. in Hungary

  71–76

  János György Nagy

  Bernadett Zsinka

  Viktória Verebélyi

  Orsolya Krisztina Zorkóczy

  Teadora Tyler

  Views:

  105

  The plant that was reported as Vaccinium oxycoccos L. from the Nyírjes-tó (Sirok village, NE Hungary) in 1994 was subsequently (1999) identified as Vaccinium microcarpum (Turcz. ex Rupr.) Schmalh. by the first author of this article. To substantiate this identification morphometric data were collected and analysed from Vaccinium specimens occurring in the Sphagnum dominated mires of Nyírjes-tó (Sirok vilage) and Nyíres-tó as well as Báb-tava (Bereg-plain) in September 2016. Field photographs taken previously at the localities of Bereg-plain were also used for identification. The leaves of the Sirok plants are smaller, ovate-triangular, i.e. widest near base. The ovate-elliptic bracteoles are inserted on the basal third of the glabrous pedicels. The flowers are solitary, and have dark pink corollas and hairy filaments on the whole abaxial surface. The fruit is pyriform. In contrast to the Sirok plants, those of the Bereg-mires have clearly larger and ovate-elliptic leaves. The filiform bracteoles are inserted on the middle third of the minutely hairy pedicels. The whitish flowers are grouped in clusters of (2)–3–4–(5), i.e. they form an inflorescence. The filaments are hairy only on the margins of the abaxial surface. The fruit is globular. The statistical analysis confirmed that the Sirok plants belong to V. microcarpum, whereas the Bereg-plain plants represent V. oxycoccos.

• Data on the pioneer vegetation of the Lake Velence

  203–208

  Norbert Riezing

  Views:

  188

  Lake Velence is one of Hungary's largest saline lakes. Part of its natural dynamics is that certain parts of the lake bed regularly dry out, providing pioneer surfaces suitable for the emergence of plants of the mudflats and drying (saline) ponds. During the particularly dry year of 2022, the water level was per­manently and significantly low, allowing to study the vegetation of the dry lake bed. In the first half of the last century, the natural vegetation of the lakeshore (including salt steppes) was studied, but there are very few records of the pioneer species of the lake bed. The salt steppes around the lake have now largely declined, but due to low water levels, some of their characteristic species are still present in the lake bed (though, usually in low number of individuals). Examples include Crypsis aculeata, Cyperus pannonicus, Suaeda pannonica, the once abundant Suaeda prostrata, and the previously rare Crypsis schoenoides and Spergularia salina. Spergularia maritima was once widespread but currently not found in the lake bed. Although, Schoenoplectus litoralis is not a member of the ephemeral vegetation, but is a characteristic plant of the littoral zone of Lake Velence. This species probably appeared therein the middle of the last century and is currently spreading.

• Forests of the sand-hill region of the Danube–Tisza Interfluve (Convallario-Carpinetum Kevey 2008)

  49–76

  Balázs Kevey

  Views:

  209

  The heavily fragmented and isolated pedunculate oak-hornbeam forests are remnants of the natural vegetation of the sand dune area of the Danube–Tisza Interfluve, where they are found mostly in inter­dunal depressions. To determine their main phytosociological characteristics, we collected and ana­lyzed data from 25 stands. The results show that these forests are the most similar in species composi­tion to the oak-hornbeam forests (Convallario-Carpinetum Kevey 2008) described from the Nyírség.

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

  242-246

  Norbert Bauer

  Views:

  372

  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.