condition mean min max Sterile Leaflet 0.052147 0.0 0.156441 Fertile Leaflet with Sori 2.2141976666666667 0.0 6.39712 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.018173033333333335 0.0 0.0545191 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0