condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 3.0609366666666666 2.26101 3.93787 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.017165 0.0 0.051495 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0