condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 2.834 0.0 8.502 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.42551 0.0 1.27653 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0