condition mean min max Sterile Leaflet 2.6387199999999997 0.0 5.6812 Fertile Leaflet with Sori 0.568765 0.428685 0.84738 Primary Rachis 0.261112 0.0 0.433802 Petiole 0.13432633333333333 0.0 0.402979 Crozier 0.13055533333333333 0.0 0.391666 Rhizome 0.112728 0.0 0.338184 Root 0.0 0.0 0.0