condition mean min max Sterile Leaflet 9.5867 0.0 28.7601 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.24348029999999998 0.0 0.642536 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0