condition mean min max Sterile Leaflet 5.339126666666666 0.0 14.6764 Fertile Leaflet with Sori 1.57751 0.0 4.73253 Primary Rachis 1.1651133333333334 0.0 3.49534 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