condition mean min max Sterile Leaflet 4.168636666666666 0.0 9.45192 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.5739766666666667 0.0 1.72193 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