Репрезентативність дендросозоекзотів у ботанічних садах Еквадору та Cтепу України

The results of evaluation of the present state of the cultivation representativeness of rare dendroflora of botanical gardens of Ecuador and Ukrainian Steppe are demostrated in aspect of species, location and regional representation. Magnoliopsida species predominate in most of Ecuador's botanical gardens. On the contrary Pinopsida species predominate in most botanical gardens of Steppe of Ukraine. The trend of increasing the number of species and parallel reduction of locations occur in both areas of our study. The representativeness of rare exotic dendroflora of botanical gardens in Ecuador and Steppe of Ukraine varies accordingly within 7,6– 59,1% and 1,9–67,4%.