condition mean min max Sterile Leaflet 0.6802243333333333 0.0 1.66138 Fertile Leaflet with Sori 3.71543 1.37448 7.89789 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.504855 0.388111 0.649968 Petiole 0.043682 0.0 0.131046 Crozier 0.0 0.0 0.0 Root 0.05290233333333333 0.0 0.158707