condition mean min max Sterile Leaflet 2.3457920000000003 0.0 6.42332 Fertile Leaflet with Sori 0.04923933333333333 0.0 0.147718 Primary Rachis 0.20039266666666666 0.0 0.316666 Petiole 0.14993199999999998 0.0 0.449796 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0