condition mean min max Sterile Leaflet 0.8460266666666666 0.0 1.38014 Fertile Leaflet with Sori 0.524629 0.141248 0.990145 Primary Rachis 2.662123333333333 1.50027 3.32607 Petiole 0.705308 0.400367 0.918482 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0