Introduction The natural of the Republic of Moldova conditions are suffi ciently favorable for growth of various woody plants. This explains the relative richness of dendrofl ora (more than 140 species of trees and shrubs, including 1 species of gymnosperms - Ephedra distachya L.). The soil and climatic conditions of our region represent great opportunities for enriching natural dendrofl ora by new economically valuable species from different fl oristic regions by the means of introduction. Material and methods As a biological material in our study the gymnosperms introduced in the Republic of Moldova were served, with the target of diversifying the taxonomic fund and identifying their biological and ecological peculiarities for elaborating the scientifi c bases for rational use in ornamental horticulture. Studying of species distribution on fl oristic regions of the earth was performed using the Takhtadzhyan monograph (1). Results and discussions More than 150-year period the introducing dendrofl ora of Moldova has replenished with 159 species of gymnosperms, which belong to 7 families and 28 genera (2). The greatest number of species is presented by the genera: Pinus L. – 37; Abies Mill. – 25; Picea Dietr. – 24; Juniperus L. – 22; Larix Mill. – 11. According the fl oristic regionalization (1) of the Earth (Takhtajan, 1978) introduced in Moldova, the gymnosperms belong to 7 areas Holarctic kingdom. In the Republic of Moldova most of the species from the East-Asian Floral Region has been introduced. Dendrofl ora of this area is extremely rich and diverse. Out of the 107 species of East-Asian coniferous, 47 has been tested, which represent 31.5% from total coniferous introducent. The second priority place by number of introduced species occupies circumboreal region. From this region in the republic has been tested 39 species from 48, existing in above-mentioned fl ora, and which constitute 26.2% from total introduced conifers. Rich source of introduction coniferous are the Atlantic-North-American and fl oristic region of the Rocky Mountains. From this - 14 (from 26) and 15 (out of 27) species (9.4 and 10.1%), respectively were introduced. Of the 40 species of conifers existing in Moldova from the fl ora of the ancient Mediterranean were tested 23 species, respectively 12% from the Mediterranean, and 11 (7.4%), from Iran-Turanian fl oristic regions. From Madrean fl oristic region 11 species were tested. Conclusions As a result of summing up the tests on gymnosperms, and the analysis of fl oristic regions of the globe the main centers for further enrichment by new plant species in the region have been identifi ed. In the perspective the mobilization of more than 100 species, one third of them belonging to the East Asian Floral Region is planned.