condition mean min max Sterile Leaflet 6.863949666666667 0.0 20.2804 Fertile Leaflet with Sori 0.243214 0.0 0.430227 Primary Rachis 0.312712 0.0 0.938136 Petiole 0.17757599999999998 0.0 0.532728 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.150973 0.0 0.452919