condition mean min max Sterile Leaflet 0.587942 0.489698 0.731224 Fertile Leaflet with Sori 7.589246666666666 5.83585 9.53206 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.5250967 0.0793751 1.2443 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.6898933333333334 0.0 1.34609