condition mean min max Sterile Leaflet 0.291563 0.0 0.566687 Fertile Leaflet with Sori 4.29789 3.69801 5.16498 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.07077703333333334 0.0 0.158955 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.022423799999999997 0.0 0.0672714