condition mean min max Sterile Leaflet 7.237866666666666 0.0 21.7136 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 1.2761533333333335 0.0 3.82846 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