condition mean min max Sterile Leaflet 0.28240166666666666 0.0 0.574773 Fertile Leaflet with Sori 3.0067866666666667 0.0 5.25446 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.179706 0.0 0.539118 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0