condition mean min max Sterile Leaflet 0.488711 0.0 1.12934 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.088594 0.0 0.265782 Rhizome 1.01072 0.0 1.71178 Root 11.260896666666667 3.23794 21.8245