condition mean min max Sterile Leaflet 2.823426 0.224648 5.37598 Fertile Leaflet with Sori 1.2117496666666665 0.0 3.07976 Primary Rachis 0.089604 0.0 0.268812 Secondary Rachis 0.04792633333333333 0.0 0.143779 Petiole 0.027477 0.0 0.082431 Crozier 0.061775 0.0 0.185325 Root 0.0 0.0 0.0