condition mean min max Sterile Leaflet 2.52464 0.0 7.57392 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.13105533333333333 0.0 0.393166 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