condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 2.505 0.0 7.515 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.116164 0.0 0.237023 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0