Ábrahám Levente (szerk.): Válogatott tanulmányok V. - Natura Somogyiensis 17. (Kaposvár, 2010)
ERDŐS, L. & MORSCHHAUSER, T.: A déli gyöngyvesszős cserjés (Helleboro odori-Spiraeetum mediae) a Villányi-hegységben
Natura Somogyicnsis 17 7-14 Kaposvár, 2010 The rock-heath association Helleboro odoriSpiraeetum mediae in the Villány Mts (South Hungary) LÁSZLÓ ERDŐS 1 & TAMÁS MORSCHHAUSER 2 'University of Szeged, Department of Ecology H-6726 Szeged, Közép fasor 52., Hungary, e-mail: Erdos.Laszlo@bio.u-szeged.hu 2Univcrsity of Pees, Department of Plant Taxonomy and Geobotany H-7624 Pécs, Ifjúság útja 6, Hungary, e-mail: morsi@gamma.ttk.ptc.hu E RDŐS, L. & MORSCHHAUSER, T.: The rock-heath association Helleboro odori-Spiraeetum mediae in the Villány Mts (South Hungary). Abstract: The rock-heath association Helleboro odori-Spiraeetum mediae has not been studied in the Villány Mts so far. In this article, we characterize the stands of the Szársomlyó Mt and compare them to the stands of the Mecsek Mts. In general, the stands are very similar in vegetation structure, ecological indicator spectra and social behaviour type spectra, although there arc some differences in species composition. Keywords: Szársomlyó Mt, long-lived spirea, Spiraea media Fr. Schm. Introduction The rock-heath association Waldsteinio-Spiraeetum mediae has been reported from several points of the North Hungarian Mountain Range (e. g. ZÓLYOMI 1936, Soó 1940, KOVÁCS andMÁTHÉ 1964, VOJTKÓ 1993,1996, CSIKY 1997, NAGY and ZENTAI 2001) and from the Transdanubian Mountain Range (e. g. HORÁNSZKY 1964). Dense stands of the long-lived spirea (Spiraea media) were found and studied in the Mecsek Mountains as well ( HORVÁT 1956, MORSCHHAUSER 1995). The community of the Mecsek Mts was described as a separate association under the name Helleboro odori-Spiraeetum mediae (BORHIDI et al. 2003). The occurence of Spiraea media was reported from the Szársomlyó Mt (Villány Mts) by Kitaibel (in HORVÁT 1942). The species can not be found elsewhere in the Villány Mts (cf. DÉNES 2000). HORVÁT (1956) stated that rock-heath stands of the Spiraea media occur on the Szársomlyó Mt. However, these stands have never been studied so far. BORHIDI (2003) does not even mention this association from the Villány Mts. DÉNES (2000) lists the plant associations of the Villány Mts, but the community Helleboro odori-Spiraeetum mediae is lacking from the list. Our aim was to characterize the Helleboro odori-Spiraeetum mediae of the Szársomlyó Mt. We also wanted to give the main differences between the stands of the Szársomlyó Mt and the Mecsek Mts.
