condition mean min max Sterile Leaflet 1.843475 0.229145 3.68494 Fertile Leaflet with Sori 7.43668 4.64108 9.83685 Primary Rachis 0.0304131 0.0 0.0912393 Secondary Rachis 0.5468500000000001 0.0 0.95772 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0