condition mean min max Sterile Leaflet 7.480193333333333 2.75843 11.6108 Fertile Leaflet with Sori 18.43919 6.73887 38.3543 Primary Rachis 0.09839333333333333 0.0 0.29518 Secondary Rachis 14.04792 1.39206 32.3499 Petiole 0.5732700000000001 0.0 1.71981 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0