condition mean min max Sterile Leaflet 9.0557 0.0 27.1671 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.18059666666666666 0.0 0.54179 Petiole 0.459057 0.0 1.059 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0