condition mean min max Sterile Leaflet 0.036013333333333335 0.0 0.10804 Fertile Leaflet with Sori 2.1915961 0.0926183 4.6618 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.14708433333333334 0.0 0.441253 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0