condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 3.7547566666666667 1.44052 6.1834 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.037359333333333335 0.0 0.112078 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0