condition mean min max Sterile Leaflet 0.64559 0.377402 0.835575 Fertile Leaflet with Sori 4.730406666666667 3.18718 7.11013 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0