condition mean min max Sterile Leaflet 3.536270666666667 0.0 10.1586 Fertile Leaflet with Sori 0.3584966666666667 0.0 1.07549 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0