condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.045706 0.0 0.137118 Primary Rachis 2.107954 0.799642 3.80328 Petiole 0.47851 0.0 1.43553 Crozier 0.0 0.0 0.0 Rhizome 1.545261 0.110463 2.4811 Root 8.018476666666666 2.41331 13.8597