condition mean min max Sterile Leaflet 2.0088333333333335 0.0 4.65014 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.02535293333333333 0.0 0.0760588 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0