condition mean min max Sterile Leaflet 0.286238 0.0 0.524628 Fertile Leaflet with Sori 3.562998 0.488994 6.57324 Primary Rachis 0.10895233333333333 0.0 0.326857 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