condition mean min max Sterile Leaflet 5.28278 0.0 9.5329 Fertile Leaflet with Sori 1.65806 0.0 2.65908 Primary Rachis 0.21887566666666666 0.0 0.656627 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