condition mean min max Sterile Leaflet 6.05591 1.16269 11.0163 Fertile Leaflet with Sori 9.142643333333334 2.27161 18.2879 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 2.592237 0.852201 4.98088 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.07635533333333333 0.0 0.229066