condition mean min max Sterile Leaflet 0.04975433333333334 0.0 0.149263 Fertile Leaflet with Sori 2.3874666666666666 0.53675 3.53577 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0