condition mean min max Sterile Leaflet 2.8983233333333334 0.0 7.31519 Fertile Leaflet with Sori 0.14718033333333333 0.0 0.441541 Primary Rachis 0.0 0.0 0.0 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