condition mean min max Sterile Leaflet 0.0319881 0.0 0.0959643 Fertile Leaflet with Sori 3.36137 1.9039 4.09703 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.056663333333333336 0.0 0.16999 Root 0.15839533333333333 0.0 0.475186