condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.3122436666666667 0.0 0.694844 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 1.9952103333333333 0.0 5.7813 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0