condition mean min max Sterile Leaflet 3.1432966666666666 0.0 4.87234 Fertile Leaflet with Sori 1.9608366666666668 0.0 4.66082 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.075557 0.0 0.226671 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0