condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 12.440033333333332 0.0 37.3201 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.14530466666666667 0.0 0.435914 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0