condition mean min max Sterile Leaflet 0.014596533333333333 0.0 0.0437896 Fertile Leaflet with Sori 12.244406666666666 1.42079 32.9963 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