condition mean min max Sterile Leaflet 0.2707 0.0 0.8121 Fertile Leaflet with Sori 0.136232 0.0 0.408696 Primary Rachis 2.13529 0.0 4.78182 Petiole 2.8273766666666664 0.0 6.76833 Root 0.0 0.0 0.0