condition mean min max Sterile Leaflet 0.097798 0.0 0.293394 Fertile Leaflet with Sori 3.5456643333333333 0.263762 9.93883 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.041754999999999994 0.0 0.125265 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0