condition mean min max Sterile Leaflet 2.60634 0.0 5.68913 Fertile Leaflet with Sori 0.899584 0.163341 2.20893 Primary Rachis 2.146308 0.0 6.03611 Petiole 0.088187 0.0 0.264561 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0