condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 26.103789999999996 0.0 71.2224 Primary Rachis 0.0 0.0 0.0 Petiole 0.05764 0.0 0.17292 Crozier 0.0 0.0 0.0 Rhizome 0.051598 0.0 0.154794 Root 0.0 0.0 0.0