condition mean min max Sterile Leaflet 0.17074233333333333 0.0 0.512227 Fertile Leaflet with Sori 8.139064666666666 0.0 23.4737 Primary Rachis 0.04409433333333334 0.0 0.132283 Secondary Rachis 2.1147899999999997 0.0 6.34437 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0