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The occurrence of Viola collina Besser in the Bükk and Uppony Mts. (N Hungary)
254-258Views:360Herbarium revisions and recent field observations revealed the occurrence of Viola collina Besser in the Bükk and Uppony Mts. (northern Hungary). This species has not been reported from the North Hungarian Mountains thus far. Altogether 94 localities of V. collina have been recorded in that region between 2007 and 2014. A map of the species’ local distribution is provided. Local habitat preferences of V. collina are briefly discussed.
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Data on alien vascular plant species in Hungary II. (7–12)
253–264Views:383In 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.