condition mean min max Sterile Leaflet 0.3050426666666667 0.0 0.915128 Fertile Leaflet with Sori 3.471363333333333 1.19301 5.71024 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.041795 0.0 0.125385 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0