condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 2.845582 0.970676 4.96219 Petiole 0.35994666666666664 0.0 1.07984 Crozier 0.0 0.0 0.0 Rhizome 1.7785533333333332 0.0 3.06656 Root 4.84133 2.21836 7.18807