condition mean min max Sterile Leaflet 2.7765366666666664 0.0 5.94879 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.30024233333333333 0.0 0.609122 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0