condition mean min max Sterile Leaflet 2.267741 0.0 6.59801 Fertile Leaflet with Sori 0.19929466666666668 0.0 0.534593 Primary Rachis 0.0 0.0 0.0 Petiole 0.03960366666666667 0.0 0.118811 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0