condition mean min max Sterile Leaflet 4.28909 0.0 8.18654 Fertile Leaflet with Sori 0.10971066666666666 0.0 0.329132 Primary Rachis 0.173592 0.0 0.520776 Petiole 0.47900533333333334 0.0 0.897095 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0