condition mean min max Sterile Leaflet 3.389666666666667 0.0 10.169 Fertile Leaflet with Sori 1.30956 0.0 2.43945 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