condition mean min max Sterile Leaflet 2.8936789999999997 0.0 8.1343 Fertile Leaflet with Sori 0.2979773333333333 0.0 0.630137 Primary Rachis 0.19994133333333333 0.0 0.394952 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