condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 3.5573 0.0 10.6719 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 1.80466 0.0 5.41398 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0