condition mean min max Sterile Leaflet 5.540485 0.0 16.4446 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.04824766666666667 0.0 0.144743 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0