condition mean min max Sterile Leaflet 2.2958766666666666 1.94854 2.54745 Fertile Leaflet with Sori 1.4637456666666666 0.235767 2.87921 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0