Characteristic of the male generative sphere of the Oenothera missouriensis (Sims) Spach

Abstract

The paper presents the results of study some processes of growth and development of a valuable ornamental and medicinal plant from the family Onagraceae Oenothera missouriensis (Sims) Spach, naturally growing in the south of the central part of North America and introduced to the Southern Coast of the Crimea. The features of the formation of male generative structures are established, the diversity of the formed microspore tetrads is shown. The presence of the majority of morphologically normal pollen grains that form in this region indicates a possible effective process of pollination and the use of this species as an ornamental and medicinal plant.