condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.103869 0.0 0.311607 Primary Rachis 16.365196666666666 6.25518 32.8661 Petiole 7.313 0.0 21.939 Crozier 0.0163908 0.0 0.0491724 Rhizome 1.6951446666666665 0.545504 2.86224 Root 6.17706 2.37834 12.9309