condition mean min max Sterile Leaflet 0.06864266666666667 0.0 0.205928 Fertile Leaflet with Sori 2.494532 0.554846 5.0276 Primary Rachis 0.08446866666666668 0.0 0.253406 Secondary Rachis 0.4436518 0.0244374 0.979251 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0