condition mean min max Sterile Leaflet 0.4470743333333333 0.0 1.08435 Fertile Leaflet with Sori 14.7203 10.8902 18.2099 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.93759 0.0 1.71087 Petiole 0.094331 0.0 0.282993 Crozier 0.0 0.0 0.0 Root 0.263978 0.0 0.791934