condition mean min max Sterile Leaflet 3.1377646666666665 0.0 8.93986 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.12346166666666668 0.0 0.370385 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0