condition mean min max Sterile Leaflet 4.763734666666667 0.0 13.894 Fertile Leaflet with Sori 3.96952 0.0 6.1736 Primary Rachis 0.12830833333333333 0.0 0.384925 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