condition mean min max Sterile Leaflet 0.061324 0.0 0.183972 Fertile Leaflet with Sori 3.49797 2.02807 4.40108 Primary Rachis 0.05614966666666666 0.0 0.168449 Secondary Rachis 0.067081 0.0 0.201243 Petiole 0.0 0.0 0.0 Crozier 0.276253 0.0 0.828759 Root 0.08391733333333333 0.0 0.251752