condition mean min max Sterile Leaflet 0.5895766666666666 0.0 1.76873 Fertile Leaflet with Sori 6.53661 3.50576 9.29271 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.189007 0.0 0.567021 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0