condition mean min max Sterile Leaflet 0.076773 0.0 0.230319 Fertile Leaflet with Sori 0.0 0.0 0.0 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 18.917196666666666 8.69639 30.7714