condition mean min max Sterile Leaflet 6.592440000000001 0.0 11.659 Fertile Leaflet with Sori 0.94102 0.0 1.755 Primary Rachis 10.174983333333333 2.10236 19.5934 Petiole 2.258716666666667 0.0 6.77615 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0