condition mean min max Sterile Leaflet 0.34572 0.0 1.03716 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.04810433333333333 0.0 0.144313 Petiole 0.0229744 0.0 0.0345577 Crozier 6.75246 4.3651 8.15726 Rhizome 0.8355963333333334 0.0 1.76513 Root 0.0169841 0.0 0.0509523