condition mean min max Sterile Leaflet 0.330968 0.239026 0.416219 Fertile Leaflet with Sori 2.1115649999999997 0.450805 4.3782 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0918947 0.0 0.203573 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0