condition mean min max Sterile Leaflet 0.925325 0.0 2.01739 Fertile Leaflet with Sori 6.563696666666667 3.02385 12.1478 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.7003916666666666 0.0 1.19122 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0