condition mean min max Sterile Leaflet 1.189531 0.506043 1.78829 Fertile Leaflet with Sori 2.138889333333333 0.114875 6.13146 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.033203666666666666 0.0 0.099611 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0