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• In memoriam Géza Kósa (1950–2021), Hungarian dendrologist

  3-15

  Erzsébet Fráter

  Views:

  310

  Géza Kósa was the curator of the dendrological collection of the National Botanical Garden in Vácrátót for 45 years. Thanks to his comprehensive knowledge of horticulture, plant science and garden-history, and his extensive collection garden experience, the Garden became the richest botanical garden in Hungary. Through his activities, he gained prestige for the importance of the collecting garden profession.

• Data on spreading cultivated species in Hungarian botanical gardens

  62–78

  Dániel Kovács

  Gábor Málnási-Csizmadia

  Márta Somlyai

  Jana Táborská

  László Máté Tálas

  Views:

  378

  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.

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

  193-201

  Csaba Németh

  Attila Mesterházy

  Views:

  140

  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.

• Campylopus flexuosus (Hedw.) Brid.: a moss new to the Hungarian bryophyte flora

  22-28

  Péter Erzberger

  Csaba Németh

  Views:

  109

  Two localities of Campylopus flexuosus new to Hungary were discovered by the authors near Uzsa in the Bakony Mts during mapping of the Hungarian bryoflora. In this paper the circumstances of the occurrences are described and illustrated by maps and photographs; a short description of the species is provided together with photographs of diagnostic characters.