Character states
Ovulate fertile structure terminal cone
Ovulate fertile structure dispersed
Ovules with coarse exterior trichomes absent
Ovules with chalazal extensions (horns, lobes, etc.) two extensions
Ovules with chalazal extensions (horns, lobes, etc.) one, wing-like extension
Ovules with chalazal extensions (horns, lobes, etc.) absent
Ovules with chalazal extensions (horns, lobes, etc.) three extensions
Sporophyllls aggregated at apex of shoot absent
Ovules with two apical lobes or projections present