condition mean min max Sterile Leaflet 0.136256 0.0 0.21896 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 0.0 0.0 0.0 Rhizome 0.070588 0.0 0.211764 Root 2.14117 1.13063 3.35046