condition mean min max Sterile Leaflet 0.09454133333333332 0.0 0.283624 Fertile Leaflet with Sori 2.1322666666666668 1.20126 3.92103 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0