condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 3.2476106666666666 0.432662 5.99195 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.17031100000000002 0.0 0.25768 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0