condition mean min max Sterile Leaflet 0.7221299999999999 0.0 2.16639 Fertile Leaflet with Sori 8.726426333333334 0.426483 25.1751 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.2850976666666667 0.0 0.456871