LM micrographs of pollen grains in the Ferula taxa examined 1–3 F. tenuissima 4–6 F. haussknechtii 7–9 F. elaeochytris 10–12 F. longipedunculata 13–15 F. divaricata 16–18 F. huber-morathii 19–21 F. caspica 22–24 F. rigidula 25–27 F. pisidica. Scale bar: 20 µm. (Equatorial view: 1, 4, 7, 10, 13, 16, 19, 22, 25. Polar view: 2, 5, 8, 11, 14, 17, 20, 23, 26. Aperture view: 3, 6, 9, 12, 15, 18, 21, 24, 27).