condition mean min max Sterile Leaflet 18.113556666666664 0.0 52.9616 Fertile Leaflet with Sori 0.13958566666666666 0.0 0.418757 Primary Rachis 0.8381599999999999 0.0 2.51448 Petiole 0.1303 0.0 0.3909 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0