condition mean min max Sterile Leaflet 0.07098233333333333 0.0 0.212947 Fertile Leaflet with Sori 46.021 36.7876 59.2437 Primary Rachis 0.075184 0.0 0.225552 Secondary Rachis 0.061137 0.0 0.183411 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0