condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 16.95759333333333 9.78028 24.1375 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.13143066666666667 0.0 0.290913 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0