condition mean min max Sterile Leaflet 0.3167756666666667 0.113331 0.557544 Fertile Leaflet with Sori 0.27352183333333335 0.0391945 0.5964 Primary Rachis 3.6180399999999997 1.83311 6.51871 Petiole 4.598506666666666 2.15963 8.31034 Crozier 4.2700700000000005 3.55304 4.89186 Rhizome 1.5192440999999999 0.0875023 2.27264 Root 0.0 0.0 0.0