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

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

Based on TUTIN et al (2002) the valid name of the taxon is Cardaminopsis petraea (L.) Hiitonen. Important synonyms or older names are: Arabis petraea L., Arabis bispida Mygind, Arabis Crantziana Ehrh., Arabidopsis petraea (L.) Lam., Cardamine petraea L., Cardaminopsis bispida (L.) Hayek. It is worth noting that O'KANE and AL-SHEHBAZ (1997) offered a new definition of the Arabidopsis genus based on molecular evidence, and mentioned the Cardaminopsis taxa under this genus. O'Kane and Al-Shehbaz treated Cardaminopsis petraea under the name of Arabidopsis lyrata (L.) O'Kane et Al-Shehbaz subsp. petraea (L.) O'Kane et Al-Shehbaz, which differs only on subspecies level from the subspecies of Arabidopsis lyrata native to Siberia, NE Asia and North America (subsp. kamchatica (Fischer ex DC.) O'Kane et Al-Shehbaz; subsp. lyrata (L.) O'Kane et Al-Shehbaz). Molecular systematic studies by KOCH et al (1999) confirmed these treatments. Range maps of MEUSEL et al. ( 1965), HULTÉN and FRIES ( 1986), JALAS and SUOMINEN (1996) clearly show the disjunct distribution of the European taxon Cardaminopsis petraea. It occurs in North Europe (Iceland, Great Britain, Norway, Sweden, Faroe Islands) and in certain mountainous areas of Central Europe (Germany, Bohemia, Austria, Hungary). Its most southerly occurrence is known from the Italian Alps (JALAS and SUOMINEN 1996). It is considered extinct in Poland (JASIEWITZ 1985), although CERNY et al (2006) doubted its occurrence in Poland. Populations of Cardaminopsis petraea occur from the sandy and rocky seashores (only in North Europe) up to as high as the alpine areas (1,500 m). Most of the Central European stands, however, grow in rocky habitats of the submountainous and mountainous regions of the middle mountains (MEUSEL 1939, MlLBRANDT 1976, ERICSON and MASCHER 1978, CERNY et al 2006). Cardaminopsis petraea is generally considered to be a glacial relict, occupying an arcto-alpine position in Central Europe shown by its disjunct distribution (BORBÁS 1900, MEUSEL 1939, MÁT HE 1940, THORN I960, MILBRANDT 1976, SCHUHWERK 1990, MËSÎCEK et al 1992). HEMP (1996) mentioned Cardaminopsis petraea as a progressive glacial element, and assumed the possibility of recent expansion. The relict character, the characteristics of distribution and habitats where competitors are largely absent make Cardaminopsis petraea (Arabidopsis lyrata subsp. petraea) an ideal subject for studying interconnections between abiotic stresses and the