condition mean min max Sterile Leaflet 1.136493 0.0 3.1589 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.08702966666666666 0.0 0.132826 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.13178466666666666 0.0 0.27738 Root 5.67065 1.4658 8.26337