Marisia - Maros Megyei Múzeum Évkönyve 36/1. (2016)
Botany
Another species that prefer edges of this area on calcareous, stony, clay soil is lungwort (.Pulmonaria officinalis), rare species, having an abundance of 40%. Bioecological forms - European hemicriptophytes; mesophilic species, mesothermal, acid-neutrophilic. Black false hellebore (Veratrum nigrum), rare species with an abundance of 40% grows in shady places, prefers soils rich in calcium. Bioecological forms — Eurasian geophyte; xeromesophilic, eurythermic, weakly acid — neutrophilic. Status of protection — protected by the state, RLR. Lily of the Valley (Convallaria majalis) is a rare plant found within the country. In the studied area is found with an abundance of 60%. Bioecological forms - European geophyte; xero-mesophilic species, mesothermal, acid-neutrophilic. Asparagus tenuifolius endangered species, also is present in ecosystem studied with an abundance of 15%. Bioecological forms - Ponto-Mediterranean geophyte; xero-mesophilic species, thermophilic, acid-neutrophilic. Status of protection - protected by the state [4]. Forest edge and glades forest ecosystem “Racovätii de Sud”, is populated by common cows lip {Primula veris), rare species with an abundance of 15%. This specie grows best on moist, well-drained soils. Bioecological forms — Eurasian hemicryptophyte; mesophilic species, microterm, neutrobasophilic. Also at the forests edge grows with an abundance of 10% grape hyacinth {Muscari neglectum) rare species. Bioecological forms - geophyte Mediterranean-European central; xerophilic species, moderately thermophilic, neutrobasophilic. Status of protection —RLR. In addition to superior plant species were recorded species of lichens and moss, which can serve as indicators of the degree of air pollution in the ecosystem, being also rare species with different protection status. The forest “Racoväfii de Sud”, serves as habitat for various species of lichens including Evernia prunastri, Cladonia fimbriata, Parmelia sulcata, Parmelia caperata, Parmelia olivacea, Parmelia acetabulum, Hypogymniaphysodes Candelariella vitellina - rare in our country, with an abundance below 25% and Ramalina fraxinea — included in RBM. The base of dominant and subdominant tree stems are often covered with a carpet of pure sinuses or in association with other species of bryophytes, especially with: Atrichum undulatum, Leskea polycarpa, Anamodon viticulosus, Mnium cuspidatum - that serve as indicators of air pollution. The rocky sector of the Ceresnovät River is a good habitat for Marchantia polymorpha, which also have an important ecological indicator serving as air pollution. Literature review on the distribution of rare species within geobotanical districts of our country, revealed new resorts in forest ecosystem “Racovätii de Sud development for: Asparagus tenuifolius, Crocus reticulatus, Суstopteris fragilis. Due to the location of the RM at the crossroads of three biogeographical zones: Central European, Eurasian and Mediterranean and location of the forest ecosystem “Racoväpi de Sud” in the forest steppe zone, characteristic to the biogeographical Eurasian area, predominant species are Eurasian (56%), followed by the Mediterranean (13%), Pontic (13%), Cosmopolitan (12%) and the lowest share Circumpolar plant (6%) (Fig. 8). The temperate continental climate influenced by Atlantic and temperate continental air masses from eastern Europe, with optimal moisture conditions, favored the dominance (44%) of the mesophilic spicies within the ecosystem “Racovätii de Sud” (Fig. 9). Besides temperate continental climate - an important factor favoring the mesophilic spicies is the upper floor of the forest ecosystem, represented by broad-leaved tree species (species of oak, maple). Global warming trends have led to presence of xero-mesophilic species (25%), that like moderately wet-dry areas. In the same way, the trends to aridity caused the presence of xerophilic species (19%) - plants adapted to moisture deficit. Mesohygrophilous species, which are represented by the State of plant species with protection potential of forest ecosystem “Racoväfii de Sud” 27
