Abstract
Based on scanning electron microscopy, ultrastructure of leaf surfaces, pollen grains and seeds have been investigated for two Atocion Adans. species – Ukrainian endemic A. hypanicum (Klok.) Tzvel., and A. compactum (Fisch.) Tzvel., which areal comprises the Balkans, Caucasus and Western Asia. New delimiting micromorphological characteristics, associated with ultrastracture of pollen grains (microechinate number on the operculum: A. hypanicum – 6-15, A. compactum – 11-26) and interporal distance (A. hypanicum – 6.72±1,2 µm, A. compactum – 5.19±1,22 µm), have been designated. A. compactum seeds also clearly differ from A. hypanicum by the papilla presence on periclinal walls of lateral and dorsal surfaces. However, ultrastructure of the leaf surface, including epicuticular wax projections, does not significantly differ between these taxa.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
