condition mean min max Sterile Leaflet 1.3337496666666666 0.0 3.49633 Fertile Leaflet with Sori 10.139101 0.203373 24.0613 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.5788233333333334 0.0 1.73647 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0