condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 2.1152896666666665 0.530049 3.88219 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.04004233333333333 0.0 0.120127 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0