condition mean min max Sterile Leaflet 9.37329 5.48701 13.7574 Fertile Leaflet with Sori 4.630793333333333 3.3095 7.13227 Primary Rachis 0.6399866666666667 0.0 1.91996 Secondary Rachis 3.308425 0.244065 4.95711 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0