condition mean min max Sterile Leaflet 7.744173333333333 2.89308 14.5342 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.06219966666666666 0.0 0.186599 Petiole 0.065342 0.0 0.196026 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0