condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 1.7802746666666667 0.267034 3.72681 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.8373433333333333 0.0 1.27481 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0