condition mean min max Sterile Leaflet 2.3081233333333335 0.0 5.4295 Fertile Leaflet with Sori 0.5556666666666666 0.0 1.667 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0