condition mean min max Sterile Leaflet 1.3776386666666667 0.873886 1.6776 Fertile Leaflet with Sori 3.85445 2.46653 4.56005 Petiole 0.984657 0.609851 1.27024 Crozier 5.40989 3.85587 7.11317 Rhizome 1.9617773333333333 0.998022 3.12521 Root 3.24162 2.16836 4.0681