condition mean min max Sterile Leaflet 0.3775652666666667 0.0919398 0.785963 Fertile Leaflet with Sori 2.2725756666666665 0.780187 3.80866 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.2615175 0.0591145 0.501472 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0