condition mean min max Sterile Leaflet 3.752466666666667 0.0 11.2574 Fertile Leaflet with Sori 0.21300966666666668 0.0 0.51099 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