condition mean min max Sterile Leaflet 1.20653 0.78383 1.47178 Fertile Leaflet with Sori 5.951386666666667 2.12711 10.138 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.5297423333333333 0.182651 1.20746 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0