condition mean min max Sterile Leaflet 0.7166813333333333 0.0 1.99003 Fertile Leaflet with Sori 5.211536666666667 2.20806 8.71832 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