condition mean min max Sterile Leaflet 6.28887 4.48749 7.4757 Fertile Leaflet with Sori 5.42392 4.19833 7.17785 Primary Rachis 6.66933 6.38851 7.17569 Petiole 6.58303 5.76935 7.36053 Crozier 6.7336 6.16794 7.5524 Rhizome 5.7860233333333335 4.80758 7.20311 Root 7.365996666666667 6.25203 8.32622