condition mean min max Sterile Leaflet 2.209356666666667 0.0 6.62807 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.8436673333333333 0.0 2.0972 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