Marisia - Maros Megyei Múzeum Évkönyve 32-34. (2014)
Botany
Contributions to the study of spontaneous vascular plants from „ Cámpia Transilvaniei” (Mures county) Air temperature shows slight differences between the north and the south part. Because the north part is characterized by higher peaks, rhe temperature here is about one degree lower than the south, where the annual average is about 8-9 °C. Rainfall, generally deficient in the Transylvanian Plain, averages in most of the unit values of 500-600 mm / year, and the frequency of precipitations are characteristic to the north-east and west circulation. As a consequence of the region localization, of the diversity of landform (hills, plains), the various slope exposures and inclinations of them, the Transylvanian Plain is characterized by a great diversity of plant taxa. Flora and vegetation of the Transylvanian Plain stirred the interest of botanists, so botanical and phytosociological contributions in this area were published over time by: Fuss, M. [10] Prodan, I. [27], Borza, AI. [3, 4], Ghi§a, E. [11], Csűrös., St., Csűrös-Káptalan, M. [7, 8], and more recently by Oroian, S. [17-25, 30], Pitea, E.D. [26] Sämärghipm, M. [24, 30], etc. Material and methods The abstract of the vascular flora of the Transylvanian Plain was developed based on researches conducted during 2000-2014, along with bibliographic information. Besides these, we can add the information contained in the Mures County Museum fferbarium. The presentation of each species is accompanied by ecological, corological, cenological data, information on the inclusion in different bioform groups, floral elements and the number of chromosomes. Species nomenclature was made according to Flora Europaea [38, 39] and I Särbu I., §tefan N., Oprea A. [32], in conjunction with the information provided by the International Code of Botanical Nomenclature. In order to conform our contribution to the general biocenological preoccupations, we indicated the modes of pollination and of fruit and seed propagation, which allow a more comprehensive understanding of biocenotical relationships between plant components of ecosystems. Pollination factors and dispersion modes are indicated in the floral summary by Oberdörfer, E. [14] and Soó, R. [24]. Within each family, genera and species are listed in alphabetical order. Synonymies were recorded in brackets after the scientific name of each species. In determining endangered, rare or vulnerable species, the National Red Lists [5, 9, 13, 15] and the latest version of sozological categories published in the IUCN Red List Categories booklet (1994) [12] were consulted. Results and discussions The Transylvanian Plain Flora is characterized by a great diversity of plant taxa. The floristic inventory comprises a total of 717 vascular taxa, including 693 species, 24 subspecies and 2 forms, distributed in 96 families (Table 1). The number of species in the Transylvanian Plain determined so far is 20.45% of all known species of our country (3500 species after Flora RPR and RSR). This significant percentage allows us to appreciate that the studied area is a region with a rich and varied flora. Best represented families are: Asteraceae (96 taxa), Fabaceae (58 taxa), Lamiaceae (52 taxa), Poaceae (51 taxa), Ranunculaceae (31), Rosaceae (30 taxa each), Scrophulariaceae (29 taxa), Apiaceae (28 taxa), Brassicaceae (26 taxa) and Caryophyllaceae (17 taxa). On the whole, these families form the basic component of the flora epitome of researched area, representing 54.05% of the total species identified. ll
