condition mean min max Sterile Leaflet 0.42078 0.0 1.26234 Fertile Leaflet with Sori 2.32761 1.70269 2.96173 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.07667133333333333 0.0 0.230014 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0