condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 2.88844 1.93906 4.51836 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.07813633333333334 0.0 0.234409 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0