condition mean min max Sterile Leaflet 1.442763 0.332539 2.06352 Fertile Leaflet with Sori 0.3993986666666667 0.0 0.888439 Primary Rachis 1.0534323333333333 0.261017 1.97839 Secondary Rachis 0.73481 0.283511 1.41863 Petiole 1.1652346666666666 0.338814 2.3964 Crozier 2.9587399999999997 1.90399 4.08304 Root 0.09513899999999999 0.0 0.285417