Seed morphology of section Edentulae Benth. of the genus Pedicularis L. (Orobanchaceae Vent.) in the Eastern Europe

The seeds ultrastructure of the five species of the section Edentulae Benth. of the Eastern Europe were studied using scanning electron microscopy. The seeds descriptions of surface of the species of this section were presented in this article. These species are heterogeneous by characteristics of seeds surface, which we consider as valuable addition features for identification within the section