condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 4.434256666666666 3.45924 5.15113 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0320681 0.0 0.0962043 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0