condition mean min max Sterile Leaflet 2.7598266666666667 0.0 8.02753 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.58346 0.0 1.75038 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