condition mean min max Sterile Leaflet 2.1575553333333333 0.8483 4.69027 Fertile Leaflet with Sori 1.156436 0.511976 1.98902 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.15792899999999999 0.0 0.291861 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.130821 0.0 0.392463