condition mean min max Sterile Leaflet 4.16681 1.72641 7.69154 Fertile Leaflet with Sori 6.4286 4.40173 8.07342 Petiole 0.156856 0.0 0.470568 Crozier 1.757296 0.234676 4.59954 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0