condition mean min max Sterile Leaflet 0.6819733333333334 0.0 2.04592 Fertile Leaflet with Sori 14.012080000000001 6.52513 26.3828 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 3.2769533333333336 1.91735 5.30977 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0