condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.23234266666666667 0.0 0.697028 Primary Rachis 0.078805 0.0 0.130576 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 8.725516666666667 4.83765 10.9471 Root 1.35541 1.12356 1.6368