condition mean min max Sterile Leaflet 0.0 0.0 0.0 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 12.733333333333334 0.0 38.2 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0