condition mean min max Sterile Leaflet 0.4084993333333333 0.0 0.969758 Fertile Leaflet with Sori 3.39152 1.11321 5.3327 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0