condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 1.01637 0.0 3.04911 Primary Rachis 0.09839333333333333 0.0 0.29518 Secondary Rachis 1.92497 0.0 5.77491 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0