condition mean min max Sterile Leaflet 0.038078 0.0 0.114234 Fertile Leaflet with Sori 3.4936733333333336 2.21754 5.55937 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