condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 3.694733333333333 0.0 11.0842 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 3.032643333333333 0.0 9.09793 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0