condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 20.882433333333335 11.4435 29.9769 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.09969333333333334 0.0 0.29908 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0