COENOLOGICAL DIFFERENTIATION OF PEUCEDANUM SPECIES (SECT. PEUCEDANUM) STANDS IN THE CARPATHIAN BASIN

Species of Peucedanum (sect. Peucedanum) with closer botanical relationships were source of taxonomic, ecologic and coenologic incertitudes. Coenological studies of grassland vegetation in the Carpathian basin completed with the ecological indicators contributed to the foundation some coeno-ecological species groups, which can express and characterize the coenological differentiation of the Peucedanum-species and stands. Thus, various stands of P. officinale are characterized by distinctive group of species for dry, humid and semi-dry salt meadows, P. longifolium by groups for rupicolous submediterranean habitats, P. rochelianum by a group of fen and wet meadows, P. tauricum by a group of xerothermic fringe vegetation and an other for stepic grasslands. It is presented the vegetation structure, local diagnostics, constant and dominant species of recently described plant community: Inulo ensifoliae-Peucedanetum tauricae.