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• Sphaerocarpos michelii, a new liverwort species in Hungary

  19-25

  Mátyás Wolf

  Csaba Németh

  Peter Erzberger

  Views:

  199

  Until now, the genus Sphaerocarpos, which can be recognized at first glance due to its characteristic appearance, was represented in Hungary by S. europaeus only, for which a single old record exists. In January 2022 the other widely distributed European congener, S. michelii Bellardi, was discovered on an arable field of lucerne in Somogy county. We report the habitat characteristics of the single known population of S. michelii in Hungary, describe the morphology of the species and deal with the differentiation of the two Sphaerocarpos species. In order to facilitate species identification, we include light and electron micrographs showing essential details of the spore surface of S. michelii.

• Data to the flora and vegetation of Hungary I.

  89-104

  Zoltán Bátori

  László Erdős

  Csaba Tölgyesi

  Eszter Aradi

  Views:

  95

  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.

• Research on the distribution of woolly cup grass (Eriochloa villosa) in the northern part of Borsod-Abaúj-Zemplén county, Hungary

  27–32

  Viktor Virók

  Tünde Farkas

  Cecília Krajnyák

  Views:

  503

  Eriochloa villosa (Thunb.) Kunth was recorded for the first time in Hungary in 2007. Since then, the species spread intensively in the area and appeared at some other parts of Hungary. We car­ri­ed out a research at the current distribution range of the species in the northern part of Borsod-Abaúj-Zemplén county. We asked how big is the infested area surrounding the place of the first occurrence and whether other occurrences could be found in other parts of the investigated area. This article also gives a review on its known localities in Hungary and neighbouring areas. During the field research, 58 locations of the species were identified, it occurred mainly in ploughed and unploughed agricultural fi­elds, and at some places in disturbed grasslands, too. It has spread on a large scale around the ne­igh­bo­uring areas of the first location found in 2007. Other locations were also found even at more distant pla­ces such as in the valley of the Sajó and Bódva rivers and in the Cserehát region. This means that further spread of Eriochloa villosa can be expected, especially in areas with an intensive agricultural activity, in disturbed grasslands, and a threat of its appearance is also suspected in open natural habitats.