Kitaibelia vol. 18 – no. 1-2. (2013) p.125-128.
Adatok a Vicia biennis L. elterjedéséhez a Pannonicum-ban
Somlyay Lajos – Bauer Norbert
Vicia biennis L. is a strictly protected, though poorly known taxon, the distribution and habitat preference of which have only hardly been investigated in Hungary.
The historical, though recently mostly ignored (DIKLIĆ 1972, 1977) records of this species from the territory of Vojvodina (Serbia) are reviewed. V. biennis was probably first collected in the region (between Kać and Novi Sad) by Feichtinger in 1870, but that record was erroneously published as V. sylvatica (FEICHTINGER 1871, PRODAN 1915). Later specimens collected by Thaisz, Kovács and Boros in Vojvodina were, however, correctly identified.
New records of this taxon from the territory named „Szikra and Alpári-rét” (Kiskunság National Park, mid-Tisza region, southeast Hungary) and adjacent territories (together: „HUKN 20028” Natura 2000 site) are presented. Based on the voucher, the single former report of V. biennis for this site („Lakitelek: Tőserdő”, cf. SZUJKÓ-LACZA – KOVÁTS 1993: 327, MOLNÁR V. et al. 2000: 299) is erroneous. Even though usually overlooked by recent Hungarian literature, the westernmost (though historical) Hungarian occurrences of the species were registered in the territory of present-day Budapest, i.e. in the vicinity of the Danube (two vouchers from the collections of Kitaibel and Sadler were ascertained in BP). However, the record from Dabas village (east of Budapest) published by SZUJKÓ-LACZA – KOVÁTS (1993: 327) is erroneous. A new locality of V. biennis discovered by Gy. Szolláth and K. Dobolyi in 2003 at an unusual habitat for the species (pure ground in a vineyard) on Mt Tokaj (upper-Tisza region) is also presented. The latter record and our field experiences suggest that V. biennis might be more frequent in the Tiszaregion than is reported in Hungarian literature or documented in local herbaria. As for its habitat preference, we have found this species within the aforementioned Natura 2000 site in almost every possible kind of open habitat near the Tisza river and its backwaters, especially in great quantities on some wastelands dominated by common weeds. Further research is needed to clarify the distribution and reveal the main factors effecting on the seasonal population dynamics of V. biennis in Hungary.