condition mean min max Sterile Leaflet 2.47695 0.64053 5.72884 Fertile Leaflet with Sori 2.601156 0.384868 4.4631 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.5781423333333333 0.0 1.23361 Petiole 0.0 0.0 0.0 Crozier 0.053752266666666666 0.0 0.0810092 Root 0.23293 0.0 0.69879