condition mean min max Sterile Leaflet 0.09357666666666666 0.0 0.28073 Fertile Leaflet with Sori 5.475366666666667 1.44535 11.0998 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