condition mean min max Sterile Leaflet 13.042133333333332 0.0 39.1264 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.08182966666666668 0.0 0.245489 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0