condition mean min max Sterile Leaflet 1.57097 0.0 4.71291 Fertile Leaflet with Sori 0.882062 0.0 2.1339 Primary Rachis 0.0 0.0 0.0 Petiole 0.3275 0.0 0.9825 Crozier 2.8335666666666666 1.6407 4.77794 Rhizome 1.4154433333333332 0.41106 2.43157 Root 0.0 0.0 0.0