condition mean min max Sterile Leaflet 4.346246666666667 1.78961 7.68977 Fertile Leaflet with Sori 3.28274 1.61337 4.84556 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 1.2909526666666666 0.600878 2.17041 Rhizome 0.34375 0.0 1.03125 Root 0.0 0.0 0.0