condition mean min max Sterile Leaflet 0.749881 0.187003 1.13046 Fertile Leaflet with Sori 4.61094 2.11057 6.04965 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0174098 0.0 0.038637 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.3014003333333333 0.106005 0.434641