condition mean min max Sterile Leaflet 0.672474 0.247057 1.39785 Fertile Leaflet with Sori 1.8936166666666667 1.49079 2.16577 Primary Rachis 0.10760266666666667 0.0 0.322808 Secondary Rachis 1.9392239999999998 0.254092 4.97847 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0