Semenovia gyirongensis A–B Habitat C Abaxial surface of primary pinnae D Basal leaf sheaths E Middle-upper cauline leaf sheaths F Rays G Adaxial surface of primary pinnae, showing hairs H Compound umbel I Umbellule J Bracts K Calyx teeth and stylopod L Infructescence M Dorsal side of mericarp N Commissural side of mericarp O Cerebroid ornamentation on equatorial plane of pollen grain P Tricolporate Q Rounded pollen polar ends.