condition mean min max Sterile Leaflet 1.3145543333333334 0.0 3.07089 Fertile Leaflet with Sori 8.165713333333333 5.83082 9.43415 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 1.0871263333333334 0.810947 1.56667 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0