condition mean min max Sterile Leaflet 5.845883333333334 0.0 13.5256 Fertile Leaflet with Sori 0.5464016666666667 0.0 1.31653 Primary Rachis 0.0 0.0 0.0 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