condition mean min max Sterile Leaflet 2.7572166666666664 0.0 8.27165 Fertile Leaflet with Sori 4.95495 0.0 12.5072 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 9.08266 8.87617 9.39084 Rhizome 1.1592976666666666 0.839023 1.56276 Root 0.0 0.0 0.0