condition mean min max Sterile Leaflet 6.46241 0.0 14.4509 Fertile Leaflet with Sori 0.936075 0.250031 2.05814 Primary Rachis 0.7383486666666667 0.0 1.79308 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