condition mean min max Sterile Leaflet 5.766703333333333 0.0 15.5472 Fertile Leaflet with Sori 0.771301 0.0 2.03104 Primary Rachis 1.8145266666666666 0.0 5.44358 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