condition mean min max Sterile Leaflet 4.3783 0.0 13.1349 Fertile Leaflet with Sori 3.83669 0.0 8.75558 Primary Rachis 1.9066596666666666 0.0 5.41415 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