condition mean min max Sterile Leaflet 2.7056899999999997 0.0 6.14572 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.13492066666666666 0.0 0.404762 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