B. Papp szerk.: Studia Botanica Hungarica 39. 2008 (Budapest, 2008)

Bauer, N., Lőkös, L.; Papp, B.: Distribution and habitats of Cardaminopsis petraea in Hungary

Studia bot. hung. 39, pp. 113-138, 2008 DISTRIBUTION AND HABITATS OF CARDAMINOPSIS PETRAEA IN HUNGARY N. BAUER, L. LŐKÖS and B. PAPP Department of Botany, Hungarian Natural History Museum H-1476 Budapest, Pf. 222, Hungary bauer@bot.nhmus.hu, lokos@bot.nhmus.hu, pappbea@bot.nhmus.hu The arctic-alpine, glacial relict Cardaminopsispetraea (L.) Hiitonen (Northern Rockcress) is a very rare plant species in Hungary. The distribution of the species in the country is reviewed on the basis of herbarium and literature data. The currently known stands are characterised by coenological relevés and documentation of the cryptogam taxa in three major populations (Tapolca-Diszel: Csobánc, Gyenesdiás: Kömell, Balatongyörök: Bise-kő). In Hungary Cardaminopsis petraea survived on both dolomite and basalt bedrocks, mainly occurring on north facing stone walls and steep slopes. Keywords: Arabidopsis lyrata subsp. petraea, Cardaminopsis petraea, distribution, habitat, relict species INTRODUCTION Although Cardaminopsis petraea (L.) Hiitonen (Northern Rockcress) is a very rare plant species in Hungary it lacks the needed attention of nature conservation. The Hungarian Red Data Book mentions Cardaminopsis petraea as a potentially endangered taxon (RAKONCZAY 1989), but despite its rarity it is not protected by law. The conservational significance of this species is acknowledged in Europe; Cardaminopsis petraea is protected in several countries, it is listed in several Red Data Books and is recorded among the endangered taxa (CURTIS and McGOUGH 1988, KORNECK et al. 1996, NlKLFELD 1999, HOLUB and PROCHAZKA 2000, ZAHLHEIMER 2001, CHEFFINGS and FARRELL 2005). Cardaminopsis petraea is a biogeographically important and well-searched species. Currently just a few confirmed occurrences are known in Hungary. The present study sums up Hungarian literature and herbarium data and describes the studied habitats by coenological relevés.