condition mean min max Sterile Leaflet 0.08297 0.0 0.24891 Fertile Leaflet with Sori 4.60787 0.0 7.58256 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.287468 0.170947 0.479451 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 1.789211 0.261106 4.55538