condition mean min max Sterile Leaflet 5.1516 0.0 10.9215 Fertile Leaflet with Sori 0.26385766666666666 0.0 0.791573 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0