condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 1.9943333333333333 0.25873 3.91758 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.10302933333333332 0.0 0.309088 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0