condition mean min max Sterile Leaflet 3.1218266666666667 2.67629 3.58691 Fertile Leaflet with Sori 3.18769 2.08288 4.6895 Primary Rachis 2.4828333333333332 1.79745 3.20528 Secondary Rachis 2.85547 2.36601 3.54486 Petiole 2.32263 1.77817 2.61671 Crozier 3.62006 2.80819 4.33418 Root 1.61406 1.33565 1.86482