condition mean min max Sterile Leaflet 0.8880669999999999 0.0 1.74873 Fertile Leaflet with Sori 1.160223 0.357 2.40977 Primary Rachis 2.442854666666667 0.737814 3.49691 Petiole 0.6705923333333333 0.0 1.18656 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0