condition mean min max Sterile Leaflet 8.12717 4.935 10.6881 Fertile Leaflet with Sori 11.378723333333333 9.28887 14.4818 Primary Rachis 0.35652 0.0 0.616299 Petiole 0.0 0.0 0.0 Crozier 0.11918066666666667 0.0 0.357542 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0