condition mean min max Sterile Leaflet 3.541523333333333 0.0 6.15464 Fertile Leaflet with Sori 0.28464 0.0 0.43023 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