condition mean min max Sterile Leaflet 3.4385 0.0 10.3155 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.21511233333333335 0.0 0.645337 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0