condition mean min max Sterile Leaflet 1.422018 0.999294 2.13282 Fertile Leaflet with Sori 1.725974 0.599142 3.19539 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