condition mean min max Sterile Leaflet 4.273431333333334 0.0 12.2979 Fertile Leaflet with Sori 0.15904166666666666 0.0 0.477125 Primary Rachis 0.0669 0.0 0.2007 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0