condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 3.0204166666666667 2.13442 3.84692 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.15272066666666667 0.0 0.275756 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0