Embryology of Oxytropis ambigua, the rare species of South Ural: ovule morphogenesis

The data of the first conducted cytology-histological analysis of ovule development of the Oxytropis ambigua, rare species of South Ural flora, in the introduction conditions has been given. Analysis of obtained results demonstrates formation of the two-covered, crassinucellate, campylotrope ovule and embryo sac of Polygonym-type. The conclusion of the developmental normality of ovule and thereby good introduction ability of studied plants has been made.