condition mean min max Sterile Leaflet 4.14706 2.45282 6.09457 Fertile Leaflet with Sori 2.1196633333333335 1.4526 2.65252 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 1.562945 0.337096 3.79026 Petiole 0.187555 0.0 0.562665 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0