condition mean min max Sterile Leaflet 6.685995666666667 0.0 19.3293 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 6.843058 0.567924 15.0169 Petiole 0.5220170000000001 0.0 0.976821 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0