condition mean min max Sterile Leaflet 2.647196166666667 0.0 7.89218 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.029412499999999998 0.0 0.0882375 Secondary Rachis 0.0 0.0 0.0 Petiole 0.1744685 0.0780255 0.287283 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0