condition mean min max Sterile Leaflet 3.5475166666666667 2.13632 5.17146 Fertile Leaflet with Sori 4.00858 2.27866 5.65912 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.4053866666666666 0.0 1.21616 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0