condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 1.8824966666666667 0.0 5.64749 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.6019733333333334 0.0 1.80592 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0