condition mean min max Sterile Leaflet 0.65187 0.0 1.40967 Fertile Leaflet with Sori 2.14626 0.0 3.70748 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.23376733333333333 0.0 0.701302 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0