condition mean min max Sterile Leaflet 3.519229333333333 0.0 10.3873 Fertile Leaflet with Sori 0.24608133333333335 0.0 0.602094 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