ASSOCIATIONS OF THE JUNCETEA TRIFIDI KLIKA ET HADAČ 1944 CLASS FROM LEAOTA MASSIF

The Leaota Mountains are well individualized, with special pastoral activities. Ecopedological conditions and the vegetation arrangement in tiers of the massif permitted the systematization of the types of meadows, on belts of vegetation: the superior mountain belt, subalpine and alpine one. After the phytocoenological investigations that have been done in this region of the Meridional Carpathians we discovered three vegetal associations from Juncetea trifidi class: Potentillo chrysocraspedae – Festucetum airoidis Boşcaiu 1971, Oreochloo – Juncetum trifidi Szafer et al. 1927 and Cetrario – Loiseleurietum procumbentis Br. - Bl. et al. 1939

CONSIDERATIONS CONCERNING THE CONSERVATION STATUS OF THE NATURAL HABITATS FROM BUILA-VÂNTURARIŢA NATIONAL PARK

In this paper a characterization of the conservation status of natural habitats from Buila-Vânturariţa National Park was maded. There were analyzed three types of habitats, according to NATURA 2000 classification, as follows: 8210 Calcareous rocky slopes with chasmophytic vegetation; 4070* Bushes with Pinus mugo and Rhododendron hirsutum (Rhododendretum hirsuti) and 6190 Rupicolous Pannonic grasslands (Stipo-Festucetalia pallentis)

THE PHYTOSOCIOLOGICAL STUDY OF SALICI PURPUREAE-MYRICARIETUM MOOR 1958 ASSOCIATION IN LEAOTA MOUNTAINS (ROMANIA)

The paper realizes a characterization of Salici purpureae-Myricarietum Moor 1958 plant association from Leaota Mountains from the coenotic point of view as well as the bioforms, geoelements and ecological indices. There were made some observations concerning main pressures that affect the favorable state of conservation and also the conservation measures of these coenoses

PRELIMINARY RESEARCHES ON NATURAL HABITATS FROM PIETRICICA MOUNTAIN (PIATRA CRAIULUI NATIONAL PARK)

In this paper a characterization of some natural habitats from Pietricica Mountain (Piatra Craiului National Park) was maded. There were analyzed five types of habitats, according to NATURA 2000 classification, as follows: 4060 Alpine and boreal heaths, 4070* Bushes with Pinus mugo and Rhododendron hirsutum (Mugo-Rhododendretum hirsuti), 6170 Alpine and subalpine calcareous grasslands, 6430 Hydrophilous tall-herb fringe communities of plains and of the montane to alpine levels and 9410 Acidophilous Picea forests of the montane to alpine levels (Vaccinio-Piceetea)

CHOROLOGICAL DATA ON SOME CORMOPHYTES FROM ARGEŞ COUNTY

This paper presents some data on chorology of five rare and vulnerable cormophytes from Argeş County discovered in 2017 during field investigations as follows: Arnica montana L., Limodorum abortivum (L.) Sw., Anacamptis pyramidalis (L.) Rich., Anacamptis coriophora (L.) R. M. Bateman, Pridgeon & M. W. Chase, Orchis militaris L.. These species were characterized taking into account: natural habitats, sozological category, their distribution in Argeş County, floristic inventory of their habitat. The main pressures and threats which threaten their survival are: illegal deforestation, storage of waste, overgrazing, harvesting for scientific collection or decorative purposes. The conservation measures necessary for their long-term conservation include: monitoring of discovered populations, control of the touristic activities, monitoring of grazing and forestry activities, reintroduction in natural habitats of new plants obtained using in vitro micropropagation

DIVERSITY OF PTERIDOPHYTES IN THE PROTECTED AREA OF VÂLSAN VALLEY

In the Vâlsan Valley there are two categories of regions that have been declared protected areas: The Natural Reserve Vâlsan Valley, code 2125 and The protected natural area of community interest Vâlsan Valley, code ROSCI0268. The aim of the research was to identify the species of pteridophytes in the protected areas, a necessary step for the conservation of their diversity. Within the area researched 26 species of pteridophytes were determined. Specific diversity across the genera identified ranges from 5 to 1, thus: Equisetum (5), Asplenium (4), Dryopteris (4), Polystichum (3) and Huperzia, Lycopodium, Selaginella, Botrychium, Polypodium, Phegopteris, Athyrium, Cystopteris, Gymnocarpium, Matteuccia with only one species. Concerning the abundance of the species identified, the pteridoflora in the area researched is made up of frequent (73%) and sporadic species (27%), such as Huperzia selago, Lycopodium annotinum, Botrychium multifidum, Asplenium scolopendrium, Matteuccia struthiopteris, Dryopteris expansa, Polystichum braunii

LAND SURVEY AND CADASTRAL MEASUREMENT IN HORTICULTURE

In this study was a combination of geographic features with the topo-cadastral topography with a strongly practical, with wide application in the entire national economy. The study area was the area Rucar Arges county, located in the extreme southern intermountain basin Rucăr – Bran. It is situated at an altitude of 750 meters on the south side of Piatra Craiului Mountains, and at the foot of Fagaras, on their lower part of the mountain range formed Iezer – Păpuşa. Horticultural point of view we have identified populations of lady's slipper (Cypripedium calceolus L.) The results obtained were as species identification and positioning as topographic coordinates X, Y and Z share and in terms of reporting orthophotomapping was performed on the exact position of this species

Overview of the Success of In Vitro Culture for Ex Situ Conservation and Sustainable Utilization of Endemic and Subendemic Native Plants of Romania

Romania has a relatively high diversity of plant species, including 3829 vascular and 979 non-vascular spontaneous plant taxa (species and subspecies). Due to uncontrolled harvesting as well as other causes, including climate change and ecological collapse, the speed of species extinction and the narrowing of the genetic base of plant resources has been reported as a critical issue. Therefore, the national Red List of Romanian flora includes 1453 threatened taxa, of which 95 are endemic and 90 subendemic. Many of these have high ornamental, medicinal–cosmetic, and/or aromatic properties. The high extinction risk of these valuable plants has stimulated both the reconsideration of their vital importance as genetic resources and interest in finding effective methods for conservation. Cultivating these phytogenetic resources in a human-controlled environment is of high importance for effective ex situ conservation, which can further serve sustainable exploitation needs and may facilitate in situ conservation actions. In vitro culture is a powerful tool for producing elite plants for cultivation for different purposes. This review summarizes the current knowledge on in vitro multiplication of 22 endemic and subendemic native plants of Romania, examining the materials used, the treatments applied, and the results obtained in each stage of the micropropagation protocol (culture initiation, proliferation, rooting, and acclimatization). The findings from the reviewed studies are presented in a comparative way, and the potential of plant tissue culture in conservation and sustainable exploitation of these Romanian species is outlined