condition mean min max Sterile Leaflet 7.661643 0.364839 16.4884 Fertile Leaflet with Sori 2.7680496666666667 0.390369 5.55133 Primary Rachis 0.45180600000000004 0.0 0.958578 Petiole 0.0 0.0 0.0 Crozier 1.534253 0.394119 2.41933 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0