In the Arboretum of the Institute of Ecology of the Volga Basin of the Russian Academy of Sciences (Togliatti, Samara region, Russia) 200 species and nothospecies of trees and shrubs are known to grow, 34 of them are running wild introduced arboreal species. In addition, 29 species and nothospecies of trees and shrubs have fallen out of cultivation. Most of the plants are in satisfactory vital condition.

Vasjukov V.M., Saksonov S.S., Stamenov M.N., Ivanova A.V., Panteleev I.V.