condition mean min max Sterile Leaflet 0.10527666666666667 0.0 0.192393 Fertile Leaflet with Sori 8.072495666666667 0.593687 13.1566 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