condition mean min max Sterile Leaflet 0.426396 0.0 0.915128 Fertile Leaflet with Sori 2.140066666666667 0.0 5.03714 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.125385 0.0 0.376155 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0