condition mean min max Sterile Leaflet 18.349133333333334 0.0 29.5065 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.04889833333333333 0.0 0.146695 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