condition mean min max Sterile Leaflet 0.260909 0.0 0.587873 Fertile Leaflet with Sori 3.7834936666666668 0.212711 7.07301 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.39487099999999997 0.182651 0.60373 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0