condition mean min max Sterile Leaflet 4.0025 0.0 12.0075 Fertile Leaflet with Sori 0.09761500000000001 0.0 0.292845 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.13024166666666667 0.0 0.390725 Root 0.0 0.0 0.0