condition mean min max Sterile Leaflet 2.062728 0.473434 4.91692 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 12.146466666666667 0.0 36.4394 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0