condition mean min max Sterile Leaflet 3.080016666666667 0.0 9.24005 Fertile Leaflet with Sori 0.3509966666666667 0.0 1.05299 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