condition mean min max Sterile Leaflet 0.271311 0.0 0.458952 Fertile Leaflet with Sori 6.1325 3.7922 7.55878 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.017776766666666666 0.0 0.0533303 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0