condition mean min max Sterile Leaflet 3.298238 0.815374 5.49353 Fertile Leaflet with Sori 1.14903 0.0 2.23365 Petiole 1.8948806666666667 0.278582 2.86645 Crozier 2.47451 0.0 4.78125 Rhizome 1.319632 0.75494 2.27973 Root 0.98782 0.0 1.52435