condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 1.8379466666666666 0.0 4.30746 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.108732 0.0 0.326196 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0