condition mean min max Sterile Leaflet 0.4727826666666667 0.312847 0.634557 Fertile Leaflet with Sori 15.902695000000001 0.250885 36.6287 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.19875733333333334 0.0 0.596272 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0